Document g2mMoQL7VNKRD0rpzBMD8aLm9

*S T 02I1002 2 LOOKING FOR ASBESTOS SUBSTITUTES Rudy H. MacDonald Exxon Company, USA Baton Rouge, Louisiana This paper is presented from the perspective of users in the Petroleum Industry. The use of data presented here for other industries may, therefore, have fo be adjusted to reflect the unique requirements of those industries. It is felt, however, that the analyses process to find a substitute is valid in any indus try. In recent years some well known Manufacturers have removed asbestos products from their product lines. It is also ho secret that governmental and environ mental restrictions have placed a burden on manufacturers of asbestos products. Expectations are that asbestos products will become less available in the future. With this in mind the search for a substitute began a few years ago. This paper will review the following areas: What is considered a true asbestos substitute? 0 Our findings on packing and gasket materials Asbestos has served and is still serving industry well. It has been the "work horse" packing and gasket material for refineries and chemical plants. 1. WHAT IS CONSIDERED A TRUE AS8EST0S SUBSTITUTE? To answer this question, one should consider all the positive characteris tics of asbestos packing and gaskets.- A true substitute must be- as good or better than asbestos in all of the following areas: Service reliability - Asbestos has served well in this area - There are PTFE, graphite, aranid based, ceramic based and mica based products available. All have varying process limitations. With this multitude of products, there are still too many manu facturers of substitute materials who are reluctant to divulge what their product is made of. One cannot buy "black boxes" when the safety of employees or the reliability of plants are involved. Also, many manufacturers have limited service data on their products. Some products were recently introduced and reliable long-term data is not available on them. All this makes it difficult to select suitable substitutes. One must be careful and not always take the manufacturer's claim at face value. ' If possible, test run a product before approving it. i ST021 1003 3 Maintain integrity in a..fire - It is not only economics that has made the use of as-bestos gaskets so wide spread. A refinery cannot have leaking flanges during a fire. Asbestos has proven to maintain the integrity of the joint in a fire. Hence asbestos is found to be fire-safe. This is one area where research emphasis and available data is virtually non existent for substitutes. Most research and data seen to-date concentrate only on the process compatibility of the substitute, material. - The characteristics of a packing or gasket in a fire should be a high consideration in all flammable or hazardous mater ial services since no one wants a hydrocarbon sprinkler sys tem in a fire. - To .. date no manufacturer of asbestos substitutes has been . able to present us with data of' any firetest done on their products. We have firetested a mica based gasket and the result was such that this type of product is suspect. With the exception of pure (952+), graphite, we consider all non asbestos substitutes to be non-firesafe until we have com pleted some additional testing. Preliminary studies indicate that our decision is justified. Wide range of service applications Asbestos gaskets are specified for 95", of our services. There is a safety and economic advantage to having a pro duct that has a wide service application. - The danger of misapplication is minimized. Our mechanics do not have to become application engineers. - Standardizing is possible which minimizes requirements for storage, guidelines, etc. Economical - The product must be economical, however, the other require ments must not be sacrificed. One can expect to initially pay more for the substitute materials. Graphite, however, is a good example of what happens when the use of a pro duct becomes widespread. Just one year ago (depending on valve size) a valve with graphite packing cost 52-252 more than an asbestos packed valve. Today most manufacturers quote the same price for both packings.  ST02I1004 4 Summarizing the discussion.of asbestos substitutes: To date, except for pure graphite materials, no substitute can indisputably claim to be fire-safe. Also, many' have a limited range of applications. One questions then if they can truly claim to be an asbestos substitute. -They are an available option in a limited service area but cannot and should not claim to be a substitute for asbestos. This implies equiv alency with asbestos characteristics which is often an incor rect statement of facts. To date we have found that only pure flexible graphite equals or surpasses all the positive charac teristics of asbestos. 2. OUR FINDINGS-ON PACKING For some time now, testing with various packing materials to identify suit able asbestos replacements has been in progress. The work of Curt Ball at the Baytown Refinery and the assistance of Exxon Research and Engineering Company in a two year test at the Baton Rouge Refinery are hereby acknowl edged. It should be noted that asbestos packing is still acceptable. However, for reasons to be mentioned later, graphite is preferred when it is compatible with the service. Note that graphite does have service limitations. Host manufacturers can supply you with these limitations and this paper will not address this. Early in our testing it became apparent that flexible graphite was the most suitable substitute since its characteristics equaled or surpassed the - above-mentioned positive characteristics of asbestos. Enough firetests of valves packed with graphite have been witnessed to verify that pure graph ite packing materials from reputable manufacturers can be considered firesafe. We consider a product to be graphite (for refinery services) if it consists of more than 952 pure carbon, has no asbestos and the Teachable chloride content does not exceed 50ppm. The next step was to determine the optimum configuration of the packing. 0 Evolution of the packing configurations - After some initial setbacks and incorrect configurations our ex perience and data from industry indicated that the "stacked" pac king configuration showed very promising results. The stacked configuration consists of a graphite bull-ring on top and bottom and die-formed graphite rings in the middle. This is also called a "sandwich" configuration. The question was and still is "What is the optimum amount of packing rings?". The current configura tions are shown on the following slides: - SI ide f?l - API-600 Valves + The bull-rings (Type A) are made of interlaced braided carbon with a graphite coating. The diefonned rings (Type B) may con tain no binders, lubricants or additives not approved by the Owner's Engineer. f ST02 I 1005 5 It is imperative that., acceptable manufacturers and specific pack ing styles be selected for your plant since most manufacturers have a wide selection with varying quality to chose from. Oo not be swayed by claims stating that a product is "XS chea*per". We have found that "302 more expensive" represented a small amount of total additional annual doll-ars'. One failure can easily void the dollar savings. Check the actual dollars one would' spend extra annually and then determine if the extra quality is worth it. When comparing costs also consider the costs of disposing of the asbestos product. We have specified top quality materials only. Unfortunately", our accepted manufacturers and styles were removed from this slide since we refrain from publicly endorsing a manufacturer. Experience in dicates that the first five rings (a "five-stack" packing) should hold 1200 psig. Data from industry indicates that this can be higher. We have no experience with these higher pressures, how ever. Most valves have stuffing boxes made per API-600 and re quire additional rings to fill the box. No more than nine rings are allowed. If the box requires more rings, then a spacer bushing should be used. Ts this the optimum configuration? I do not think so. As we gain more confidence in the graphite packing, I suspect that less rings will be used. + Note "3 requires the packing to have an approved corrosion inhibitor. - There are active and passive inhibitors and most manufacturers claim that their ov/n type is the only one that will work. Which type to use is still an open question for us. Each have pros, and cons. My recommendation is that the packing manufacturer be reouired to disclose which inhibitor is used and that lab and/or field data be required to substantiate any claims. It is too early to settle on a specific inhibitor. Only experience will" tell which .one lasts longer since most of those being proposed should work. What is recommended is that the need for a corrosion inhibitor be speci fied. The only two failures we have exoerienced are valves packed with graphite containing no corrosion inhibitors. The time between manufacturing and installation can be long. In our case the valves arrived too late for a unit turnaround and were stored for one year before being installed. They passed a hydrotest, but after the first stroking, hot oil was released through the packing. It was later determined that the year of storage had caused stem corrosion which destroyed the packing during stroking and a leak path was created. The valves were repacked and are still working fine. The additional cost of a corrosion inhibitor is minimal. - Slide sf2 - API-602 and Ouarter Turn Valves This reflects the requirements for these type of valves. Mote the smaller quantity of packing rings. As more confidence is gained, we suspect that fewer rings will do an adequate job for most refinery services. 9001 I 201S 6 0 Pensities Required - This is an interesting topic. The definition needs to be stan dardized. When discussing densities-, some use the density of the ribbon used to make the die-formed ring. Others use the density of the rings after they have1 been compressed in' the stuffing box. This is confusing and has led to miscommunications. The densities quoted in this paper are the densities of the dieformed rings as purchased before placing in the stuffing box. - What is the correct density to specify? That depends on whom you are talking to. One manufacturer has valid arguments and examples to justify that his low density rings {70-75 Ibs/cft) will work. Another is quoting equal success with high density rings (90 Ibs/cft). 'eciding who to believe is difficult for the engineer. Both densities have worked for us. . The higher densities are easier to work with and are preferred by valve manufacturers. However, once the density reaches 100 Ibs/cft, field adjustment can become difficult. At 105 Ibs/cft, adjustment is very diffi cult since the ring is extremely hard.... Starting with a high density may benefit the valve manufacturers, but does not give the user the packing longevity lower densities allow. Lower densities are especially needed when reoackina valves. Many manufacturers do not adhere to the API-500- stuffing box dimensions. Four valves of different sizes from eacn of five manufacturers were checked in a recent survey. From the twenty valves, not one was in accordance with API-600 stuffing box dimensions for the stem diameters selected. V/ith this kind- of discrepancy higher density- rings made to meet API-600 dimen sions have less chance of working when repacking such a nonstandard valve. - Allowable densities for Exxon valves range from 75 to 85 lbs./eft. It was- found that these ranges: + Give the manufacturers the packing benefits of higher den sity while still allowing the users a reasonable adjustment capability required for a longer service life. + Allows us the flexibility of repacking non-standard stuffing boxes without having to custom make each packing. - Depending on whose product you use a compression of 31-5" of each die-formed ring is needed to assure proper operation. The range of compression has a direct relationship with the original density of the die-formed packing ring. - The search for the optimum density is not over and could be the topic of a separate paper. Time allotted, however, forces me to move on. / 0 Environmental bonuses Graphite packing is proving to reduce the rates of the valves compared to asbestos. true in higher temperature services. . Summarizing our findings on packing: t hydrocarbon emission This is especially While asbestos is still an approved packing material, graphite packing is proving to meet or surpass all the positive characteris tics of asbestos. Increased usage is lowering the price to .where graphite packing has become competitive with asbestos. Other nonasbestos substitutes to-date have not proven to be fire-safe which represents a major flaw to us. r ST02I 1007 3. OUR FINDINGS ON GASKETS ' Currently, asbestos gaskets are still approved for the majority of our services. Only asbestos and graphite are approved in API-601 spiral wound gaskets. A major reason is the non-firesafe characteristics of other substitutes. The same deficiencies mentioned before for packing materials also apply to gaskets. With the amount of flange joints in a typical refinery, the requirement for a fire-safe gasket in-a hydrocarbon or other flammable service is obvious. One cannot have leaking flanges in a fire. I have witnessed various firetests in which API-601 graphite spiral wound gaskets from known manufacturers were repeatedly re-used (up to six times in one case). These gaskets withstood the torture of an Exxon Company, USA firetest which can safely be considered a very severe firetest. Asbestos spiral wound gaskets could generally only be used once or twice. A mica-based spiral wound gasket, upon being subjected to a firetest, could not hold 10 psig after the fire was extinguished. Flange bolts were tightened until one broke without stopping the leak. Studies made on some compressed non-asbestos gaskets showed that the tensile strength across the grain was less than 50T of the strength of asbestos caskets specified for our refineries. This characteristic has also been observed in reports and studies made by others. In our experience a non-reinforced compressed graphite valve bonnet gasket blew out after 13 months in service. The low tensile strength is a concern and is one reason we have not approved the use of gaskets made of compressed non-asbestos materials. Graphite gaskets made with wire reinforcing have possibilities and ape being reviewed. Summarizing the discussion of gasket substitutes: At this time compressed non-asbestos gaskets are considered experi mental and not approved for general use. Spiral wound API-601 graph ite gaskets from a reputable manufacturer are an acceptable substitute Hire reinforced compressed graphite has promise and is being studied. I suspect that graphite will also be selected as the asbestos substi tute once the deficiencies of compressed graphite gaskets are overcome This concludes my talk and [ will gladly answer any questions. 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LJ----U 1C----L z qLUcdl udtoc UJ o --Qd 3CC D3C13- u-- CUzCJ UJ CD 0LU 3 JuGUCtZ-JCZD CLUC dZ --H- 1z- --3do -- U. O to C--ZzD Q* O--h Z lUCL -- SLU (d-WaDc Xu ZH U LJ OOdZLU1OC . o --o LU 1-- Q u. --t- 3CC -- r 10d_3_ 1 to -5 cc 'uiro OtcOc --> to LU Ul)-- LJ m30z--oo1----o z X 3d jLOU CCUUJ U-ZOtO UJ a5-. CD CO CD z CC o 3 1-- UJ CD to z i d 03 d wW W " u UJ LU LU - " CL a. a. h>-- y>-- y>-- , ' LuCD c--c --ui 6~ UJ o cc o CM -t~ --. 53 Q --3 G3. > to z o kcC h LU UJ CJ CD 3 U > h- CO LU 3 (0 Z a a z cc LUdo Z fLUCO -- -- '3 > DC -- LU LU 3 CC 3 3 "3 LU COLO m o 1- z 3 >- 3 -- --X CD d 21 CO z o 1o 3 CC 1-- CO z o f--c >- z z uz 30 -- do CD 3 -- LUU. -- Z to V- 3 3 tO Z -- z d zcocc O 3 UJd cc 3 U3 DC Z CC " 1 d d CdZi-- iu-. UJ' iO-- HU ' (-! Z : oc 03 CzJUx c>c ~cc :- ccc cccc j:.tzcu.cac_.cxloi :D-:UIu-l 1>c3 cZr -- 'LUO to to u. CoC 3_ u_ ~ UI. tooo & cjr-Oi- I Li3 _ -'UJ >~i- ctuc--zoz to '< CO CC hI-- Z4. _J UJ -- CMn 5T to CD to UJ I-- o u2 ;3 Q to UJ >_1 d D z CC 3 CC UJ CE d 3 a az d CM O to 0. d LO ' CcC. U I-' g 6001 I 201S:ii c: CZl i-l BLOCK VALVE GRAPHITE PACKING GUIDE ( REV 3) ISSUED 5/86 INSTALLATION INSTRUCTIONS . GRAPHITE PACKING . 1. CLEAN THE STUFFING BOX THOROUGHLY. MAKE SURE ALL PACKING IS REMOVED. IF PACKING A NEW VALVE, MAKE SURE ALL SURFACES ARE CLEAN. 2. RECOMMENDED FINISH ON STEM AND STUFFING BOX IS 32 RMS. 3. ' THE FOLLOWING DIAMETRICAL CLEARANCES SHALL BE ADHERED TO: STEM TO GLAND GLAND TO BONNET STEM TO BONNET PACKING WIDTH .010" - .020" .010" --.020" PER API-500. TA8LE 2 PER API-600, TABLE 2 RECOMMENDEO MAX. PACKING TO STEM PACKING TO BONNET .0001" .0005" .0005' .0100- ..015' 025- CLEARANCE AT THE BOTTOM OF THE STUFFING BOX SHALL NOT EXCEED .020", ALWAYS INSTALL A BRAIDED GRAPHITE BULL RING AS SHOWN..' 5. OIE-FORMED RINGS ARE FURNISHED ENDLESS AMO PREFERRED INSTALLATION IS WITH AN ENDLESS RING. IF OUE TO CIRCUMSTANCES. ENDLESS RINGS CANNOT BE INSTALLED, THEY MAY BE ORDERED CUT AT A 45' ANGLE OR CUT ENDLESS RING BY USING A RAZOR ELACE . IF SPLIT RINGS ARE USED, MAKE SURE THAT THE SPLITS IN EACH SUCCEEDING RING ARE STAGGERED 90 INSTALL RINGS ONE AT A TIME TO MAKE SURE EACH RING IS SEAtED PROPERLY. USING A SPLIT RING BUSHING HELPS PROPER INSTALLATION. COMPRESS EACH RING ABOUT 2/ TO 3'/.. THIS MOLDS THE RINGS TO THESTEM ANO THE BORE AND UNIFORMLY COMPACTS THE RING. EACH SUCCEEDING RING MUST BE INSTALLED IN THE SAME-MANNER. WHEN THE STUFFING-80X IS FILLED WITH THE CORRECT NUMBER OF RINGS, COMPRESS THE PACKING SO THAT THE FINAL HEIGHT OF THE PACKING IS APPROXIMATELY 75/. OF ITS ORIGINAL UNCGMPRESSED HEIGHT. THIS MAY THEN REQUIRE ONE OR TWO ADDITIONAL RINGS TO MAKE SURE STUFFING eox IS FILLED CORRECTLY, the CLF.no SHOULD have FINAL CLEARANCE SUFFICIENT FOR FUTURE ADJUSTMENTS. 8. OPERATE THE VALVE ONCE OR TWICE .0 HELP THE PACKING ADJUST. PRESSURIZE THE VALVE AND CHECK FOR LEAKAGE. IF REQUIRED. TIGHTEN EACH NUT APPROXIMATELY 1/4 TURN OR TWO FLATS ANO RECHECK FOR LEAKAGE. REPEAT IF NECESSARY UNTIL LEAKAGE IS STOPPED. 9. FIELD ADJUSTMENTS TIGHTEN EACH NUT APPROXIMATELY I/4 TURN OR TWO FLATS AMO RECHECK FOR LEAKAGE. REPEAT IF NECESSARY UNTIL LEAKAGE IS STOPPED. own nr SCALE trd. ar APPR REV . DATE 3 5/86 API-600 AND QUARTER TURN VALVES SHEET 1 OF 3 owe. NO. 0101 IZOlSij THE DOW CHEMICAL COMPANY ENGINEERING PRACTICES PIPING rJ GASKETS DESIGN AID M4-5600 Page 1 of 5 I. General A. A gasket specification should be included as part of each piping or equipment specification. B. Spepifications 1. Use approved piping specifications for gasket selection for established services. 2. Plant experience with gaskets In a particular service can vary due to minor differences and should always be consulted. 3. Gasket selection for new or unusual services should be made by a team of at least the manufacturing representa tive, project engineer and Mechanical R&D and specifi cations prepared accordingly. 4. Whenever possible, the materials and styles specified should be those normally stocked. II. Properties of a Gasket A gasket is used to create a seal between two separable members of a mechanical assembly. The gasket selected must meet the needs of the materials contained and the faces to be sealed. 9/22/76 A. The gasket must be impervious to the fluid handled In the system. B. The gasket must have sufficient chemical resistance at the service temperatures to be encountered, both at Its outer and inner areas of contact with the fluid, to maintain its sealing ability. C. The gasket must not contaminate the system being sealed. D. The gasket must not promote corrosion of the flanges with which it comes in contact. E. The gasket must be capable of withstanding the required bolt loading without crushing or undergoing excessive plastic flow. ST02I 1023 y THE DOW CHEMICAL COMPANY ENGINEERING PRACTICES PIPING DESIGN AID M4-5600 Page 2 of 5 F. The gasket must be sufficiently deformable to seal normal irregularities of the surfaces. G. The gasket must not cause excessive stresses in the flanges to be sealed at either the operating or gasket seating conditions. H. The gasket must be elastic enough to maintain a sealing load when the system is at Its maximum pressure load and must be capable of withstanding pressure temperature cycling of the system.. I. The gasket must develop adequate friction In contact with the flange face and have adequate strength to resist blow put under pressure. J. The gasket should be easy to install and to separate from the flange faces for ultimate removal. K. The gasket must resist damage In handling so It can perform its intended function. III. Selecting the Right Gasket A. The right gasket to select will be influenced by: 1. Design and materials of construction of the joint to be sealed and the bolting used. 2. Nature of the fluid contained. 3. Temperature of the system. 4. Pressure to be sealed. B. Good practice in selection of a gasket Is: 1. Select a gasket with the thinnest thickness capable of performing the sealing requirement. 2. Gasket sizes should always conform to ANSI standard sizes or be calculated by ASME or TEMA codes for the service conditions. 3. Whenever possible a gasket should be selected from those listed in section IV. Other designs or materials will be necessary for certain jobs and these should be selected after being specifically engineered. 9/22/76 x ' ST02 I 1024 ( ! S T 02I1025 THE DOW CHEMICAL COMPANY ENGINEERING PRACTICES PIPING DESIGN AID M4-5600 Page 3 of 5 C. Temperature limits of corrmon gasket materials are:* Compressed asbestos sheet Teflon (TFE) Vi ton rubber Red rubber Vegetable fiber Grafoil Spiral wound SS/asbestos to 850F 450F _400F ^200F 212F 3,000F 1,200F Maximum metal temperatures: Copper Lead Aluminum Carbon Steel 304, 316 SS 321 , 347 SS 400F 250F 800F 1,000F 1,000F 1 ,600F *at temperatures approaching the maximum temperature the allowable pressure is generally decreased below the maximum allowable pressure at lower temperature. D. Ring-type gaskets for pipe flanges cut from flat sheet with the O.D. sized to center the gasket by the flange bolts are commonly available with two inside dimensions: 1. To fit the I.D. of schedule 40 pipe without leaving a crevice. To be used with weld neck or other flanges which come square to the pipe I.D. 2. To fit to the O.D. of standard pipe without having any gasket material project into the flow stream when slip on or screwed-type flanges are used. E. Full-face gaskets extending to the O.D. of the flange with holes punched for the bolt holes are used with flat-faced flanges to limit bending of the flanges, particularly FRP plastic or cast iron flanges. IV. Gasket materials and styles comnonly used and available from stock. . A. Compressed asbestos sheet 1. JM-61 - white material for general service use. Binder is SBR rubber. Cut gaskets 1/16" stocked. Sheets 1/32", 1/16", 1/8" thick stocked. Maximum pressure x temperature (F) = 250,000. Maximum temperature = 850F. 11-15-76 ST02 I 1026 THE DOW CHEMICAL COMPANY ENGINEERING PRACTICES PIPING DESIGN AID M4-5600 Page 4 of 5 2. Garlock 7021 - Dark colored material for general service use. Binder is SBR rubber. Cut gaskets 1/8" thick stocked. Sheets 1/16", 1/8" thick stocked. Maximum pressure x temperature (F) = 300,000. Maximum temperature = 750F. 3. Durabola - Dark colored sheet used for refrigeration and general service. Rolls 48" wide, 1/16" and 1/8" thick stocked. Binder is Buna S and crude rubber. Maximum temperature = 1100F, pressure to 3,000 psi. 4. Garlock 900 - essentially the same as JM-61. Stocked 60"x63" sheets, 1/64" thick. Used for frangible safety assembly gaskets. B. Felted asbestos sheet 1. J-M 83-B - Blue colored felted sheet (white chrysoltile asbestos). Temperature to 400F and pressures to 20 psi. Formerly was a Blue African Asbestos material 44"x51V, 1/16" and 1/8" thick. C. Rubber Sheet 1. Red Rubber - Goodrich SBR-75 or Boston Woven No. 50. 36" and 42" rolls 1/16" and 1/8" thick. Cut gaskets 1/8" thick stocked. General purpose rubber sheet. 2. HyCar, Goodrich, 36"x36" sheets 1/16", 1/8", 3/16", 1/4" thick stocked. For petroleum fuels and oils including Type A transmission fluids. 3. Silicone - Dow Corning Silastic #51, 24"x24", 1/16" and 1/8" thick. For high and low temperature generally poor chemical resistance and mechanical strength. 4. Vi ton - Dow Bay City, 36"x36"xl/8" thick. High and low temperatures. Good resistance to chlorinated, aliphatic and aromatic hydrocarbons. Not for esters, ketones and amines. D. Vegetable fiber sheet 1. Vellumoid - 36" wide rolls 1/32" and 1/16" thick stocked. E. Teflon sheet, TFE sheet, 24"x24"; 1/16", 1/8", 1/4" thick and 48"x48"; 1/8" thick stocked. ( ( v 9/22/76 S T 0 2 I1027 THE DOW CHEMICAL COMPANY ENGINEERING PRACTICES PIPING DESIGN AID M4-5600 Page 5 of 5 F. Teflon Envelope gaskets 1. With three thicknesses of felted and compressed asbestos sheet round and oval shapes. 2. With two thicknesses of felted asbestos sheet and one thickness corrugated steel. Pfaudler CRT high pressure round and oval manhole gaskets. G. Lead Envelope gaskets 1. Dow Boiler Shop - Chemical lead envelope with two thick nesses of 0M-83B felted asbestos sheet. H. Spiral wound SS/asbestos 1. 304 SS/asbestos with metal centering guide OM style 912. 150 psi ANSI flanges stocked. For high temperatures, steam Dowtherm A, etc. (Flexitallic SMG) 2. 304 SS/asbestos with compression limiting centering guide JM style 913. 300 psi ANSI flanges stocked. For high temperatures and pressures steam, Dowtherm A, etc. (Flexitallic CG) 3. 304 SS/asbestos with wire loop guide for centering around bolts. 400 psi ANSI flange stocked. I. Metal Jacketed 1. JM 923 Aluminum jacketed asbestos, with flat face. 2. JM 926 Aluminum jacketed asbestos, corrugated face. V. Good Installation Practices A. Use only one thickness of gasket between each pair of surfaces to be sealed. B. Obtain uniform gasket loading by properly staggering sequence of bolts tightened. C. Use a new gasket for each occasion a joint is to be resealed. D. Check bolting to assure agreement with specifications. 9/22/76 ' ST02I 1075 UM-30HNMOJ THE DCV CHEMICAL COMPANY DOW ENGINEERING SPECIFICATION GASKETS AND LINED PIPE SPACERS 48-850 4- 9-8 6 PAGE 1 Of 8 I TEN NO G-I G-2 G-2A G-2AF 6-3 G-4 G-4A G-4e G-5 G-5 A G-6 G--7 G-7 A OESCPIPTICN STD FLAT RING GASKET. 1/16 INCH THICK ASeESTOS. GOODYEARITE STYLE 104 CR NICOLET 295. (NOTE- MINUS 200 TO 750F.) STD FLAT RING GASKET. 1/16 INCH THICK BLACK RUBBER* GARLOCK 353. JOHNS-MANVILLE JM-114C. STERLING 4010. OR HERCULES 904. (NOTE- MINUS 40 TO 300F.) STD FLAT RING GASKET. 1/B INCH THICK BLACK RUBBER. GARLOCK 353. JOHNS-MANVILLE JM-I14C. STERLING 4010. OR HERCULES 504. (NOTE- MINUS 40 TO 300F.) FULL FACE GASKET. 1/8 INCH THICK BLACK RUBBER. GARLOCK 353. JOHNS-MANVILLE JM-1I4C. STERLING 4010. OR HERCULES 504. (NOTE- MINUS 40 TO 300F.) STD FLAT RING GASKET. 1/16 INCH THICK CLOTH REINFORCED BLACK RUBBER. GOODRICH 60. STERLING 4200 OR HERCULES'509. (NOTEMINUS 40 TO +350F.J STD FLAT RING GASKET. 1/16 INCH THICK ASBESTOS. GARLOCK 900. (NOTE- MINUS 200 TO 700r.) STO FLAT RING GASKET. 1/8 INCH THICK ASBESTOS. GARLOCK 900. (NOTE- MINUS 200 TO +700F.1 FULL FACE GASKET, 1/8 INCH THICK ASBESTOS. GARLOCK 900. (NOTE- MINUS 200 TO 700F.1 CORRUGATED GASKET. 1/32 INCH THICK MONEL. PARKER P-900 OP STERLING C. (NOTE- MINUS 325 TO +1500F.) CORRUGATED GASKET. 1/32 INCH THICK TYPE 347 STAINLESS STEEL. PAPKER P-9G0 OR STERLING C. (NOTE- FOR HIGH TEMP SERVICE TO 1600F.) CORRUGATED GASKET. 1/32 INCH THICK SOFT IRON, PARKER P-900 STERLING C. (NOTE- MINUS 50 TO +100CF.) STD FLAT RING RED RUBBER GASKET. 1/16 INCH THICK. JOHNS-MANVILLE JM-1C7. GARLOCK 22. CR GOODRICH SBR-75. (NOTE- MINUS 40 TO +180F.) STD FLAT RING RED RUEEEfi GASKET. 1/e INCH THICK. JCHNS-MANVILLE JM-1C7, GARLOCK 22. CR GCOCRICH SBR-75. (NOTE- MINUS 40 TO 18 OF) ALU INFORMATION HEREON IS THE CONFIDENTIAL PROPERTY OF THE DOW CHEMICAL COMFANV. SUBJECT TO RETURN ON OCMANO AND MUST NOT EE MADE PUBLIC OB BEFBOOUCEO WITHOUT WBITTCN APPROVAL wM *AK\4|N*N my, If r*f--fj4Mg/**'*'****"'-*'' THE DOW CHEMICAL COMPANY DOW ENGINEERING SPECIFICATION GASKETS AND LINED PIPE SPACERS E48-850 4- 9-86 rPAGE ? Of ITEM NO G-7AF G-7F G-7AR G-7AS G-8 DESCRIPTION FULL FACE RED RUBBER GASKET* 1/16 INCH THICK. JOHNS-MANVILLE JM-107. GARLOCK 22. OR GOODRICH SBR-75. (NOTE- MINUS 40 TO +180F.) FULL FACE REO RUBBER GASKET. 1/8 INCH THICK, JOHNS-MANYILLE JM-107. GARLOCK 22. OR GOODRICH SBR-7S. (NOTE- MINUS 40 TO 180F.) FULL FACE 1/8 INCH THICK RED RUBBER GASKET. ID OF GASKET TO BE EQUAL TO ID OF RUEBEP-LINED PIPE. JOHNS-MANVILLE JM-107. GARLOCK 22 OR GOODRICH S8R-75. (NOTE- MINUS 40 TO 180F.1 STD FLAT RING 1/B INCH THK RED RUBBER GASKET. ID OF GASKET EQUAL TO ID OF PLASTIC-LINED PIPE. JOHNS-MANVILLE JM-107, GARLOCK 22 OR GOODRICH SBR-75. (NOTE- MINUS 40 TO I80F.) CORRUGATED STEEL JACKETED ASBESTOS CASKET. PARKER P-926. STERLING DC. (NOTE- MINUS 50 TO +900F.) ST02II 076 6-9 G-9 A G-9E G-10 G-H G-12 G-13 G- 1 4 STD FLAT RING GASKET. 1/16 INCH THICK ASBESTOS WITH SILICON RELEASING AGENT. JOHNS-MANVILLE JM-60. GARLOCK 7021 OR NICOI 225 CR 245. (NOTE- MINUS 200 TO +7008.) STD FLAT RING GASKET. 1/8 INCH THICK ASBESTOS WITH SILICON RELEASING AGENT. JOHNS-MANVILLE JM-60. GARLOCK 7021 OR NI COLE T 225 CP 245. (NOTE- MINUS 200 TO +700F.> FULL FACE GASKET, i/e INCH THICK ASBESTOS WITH SILICON .RELEASING AGENT. JCHNS-MANVILLE JM-60. GARLOCK 7021 OR N1C0LET 225 OR 245 (NOTE- MINUS 200 TO +700F.1 SOLID SOFT IRON RING JOINT GASKET FCR 600-LB RTJ FLANGE. ANSI B16.E. BRINELL HARDNESS 80-90. (NOTE- MINUS 20 TO +750F.) SOLID SOFT IRON RING JOINT GASKET FCR 90C-LB RTJ FLANGE. ANSI B16.5. BRINELL HARDNESS 80-90. (NOTE- MINUS 20 TO 750F.) SOLID SOFT IRON RING JOINT GASKET FCR 1500-LB RTJ FLANGE. ANS I B16.5. BRINELL HARDNESS 80-90. (NOTE- MINUS 20 TO 750F) SOLID SOFT IRON RING JOINT GASKET FOR 300-LB RTJ FLANGE. ANSI B16.5. BRINELL HARDNESS 80-90. (NOTE- MINUS 20 TO +750F.) KCRCSEAL. GOODRICH 116 OR STERLING 9900 SHEET GASKET. 1/8 INCH THICK. (NOTE- MINUS 20 TO 150F . J ro n M HOC-MU ALL INFORMATION HC.ION IS THE CONFIDENTIAL FROFERTY OF THE DOW CHEMICAL COMFANY, SUBJECT TO RETURN ON DEMAND AND MUST NOT BE MADE FURLIC OR REFROOUCEO WITHOUT WRITTEN AFFROVAL. FORM HDC-M11 f/m iz m s THE OOW CHEMICAL COMPANY OOW ENGINEERING SPECIFICATION GASKETS AND LINED PIPE SPACERS E40-83O A- 9-8 6 PA6e 3 of 8 ITEM NO G-15 G-15 A G-15B G-16 G-16A G -17 G-I7A G-l7Ae G-17B G- J7C G- 10 G - 10 A G-19 DESCRIPTION SPIRAL-WOUND. NICKEL-ASBESTOS GASKET. PARKER P-912 OR STERLING WL. (NOTE- MINUS 325 TO +900F. ) SPIRAL-WOUND. NICKEL-TEFLON GASKET, PARKER P-912 OR STERLING WL. (NOTE- MINUS 325 TO +450F.) SPIRAL-WCUNO. NICKEL WITH TEFLON IMPREGNATED BLUE ASBESTOS FILLER. PARKER P-912 OR STERLING WL. (NOTE- MINUS 325 TO 500F.) SP1RAL-WOUNC. STAINLESS STEEL-ASEESTOS GASKET. PARKER P-912. STERLING WL. (NOTE- MINUS 425 TO 900F.I SPIRAL-WOUNC. STAINLESS STEEL-TEFLON GASKET. PARKER P-912. STERLING WL. (NOTE- MINUS 425 TO 900F.) 4000-LB LENS RING IN ACCORD WITH TEXAS DIVISION STO 43-527. (NOTE- SITES 1/2 THRU 4, MINUS 2C TO -*-900F.) 4000-LE LENS RING IN ACCORO WITH OOW ENGINERING STANOAPD 43-327 (NOTE- SIZES 1/2 THRU 4, minus 20 TC +900F.) 5300-LB BLIND LENS RING IN ACCORO WITH DOW ENGINEERING SPECIFICATION 43-533. (NOTE- SIZES 1/2 THRU 6* MINUS 20 TO 900F. ) 5200-LB eLINP LENS RING IN ACCORD WITH TEXAS DIVISION STO 42-533. (NOTE- SIZES 1/2 THRU 6. MINUS 20 TO 900F.) 5200-LB LENS RING IN ACCORO WITH TEXAS DIVISION STO 43-530. (NOTE- SIZES 1/2 THRU 6. MINUS 20 TC +900F.1 STO FLAT RING GASKET. 1/8 INCH THICK ETHYLENE PROPYLENE RUBBER. PLASTIC LINED PIPE DEPARTMENT, DOW CHEMICAL COMPANY, FOR USE WITH OCX PLASTIC LINED STEEL PIPE. (NOTE- MINUS 60 TO +250F.) STO FLAT RING GASKET. 1/0 INCH THICK VITON, PLASTIC LINED PIPE DEPARTMENT, DOW CHEMICAL COMPANY. FCR USE WITH COW PLASTIC LINED STEEL PIPE. (NOTE- MINUS 50 TC 2E0F.) ETHYLENE PROPYLENE RUBBER HALF GASKET. PLASTIC LINED PIPE DEPARTMENT. DOW CHEMICAL COMPANY. FCR USE WITH DOW PLASTIC LINED STEEL PIPE. (NOTE- MINUS 60 TC + 25CF.) ALU INFORMATION HEREON IS THE C ON FI OCNTl A L FROFERTV OF THE DOW CHEMICAL COMFANV. SUBJECT TO RETURN ON OEM AMO ANO MUST NOT BE M AOE FUBLIC OR REPRODUCED WITHOUT WRITTEN APFROVAL. THE DOW CHEMICAL COMPANY DOW ENGINEERING SPECIFICATION GASKETS AND LINED PIPE SPACERS PAGE 4 Of 8 ITEM NO G-X9A G-ioe G-20 G-21 G-24 G-24 A G-25 G-26 G-26 A G-26 AF G-27 G-28 G-28R DESCRIPTION VITON HALE GASKET. PLASTIC LINED PIPE DEPARTMENT. DOW CHEMICAL COMPANY. FOR USE WITH DOW PLASTIC LINED STEEL PIPE. (NOTEMINUS 50 TO 250F.) NYPALON HALF GASKET. PLASTIC LINED PIPE DEPARTMENT. OOW CHEMICAL COMPANY. FOR USE WITH DOW PLASTIC LINED STEEL PIPE. (NOTE- MINUS 30 TO -t250F.) =ST02I 1078" SOLID TYPE 304 STAINLESS STEEL RING JOINT GASKET FOR RTJ FLANGE. ANSI B16.5. BRINELL HARDNESS 160. 0.04 TO 0.08 PER CENT CAPBQN. (NOTE- MINUS 425 TO 1E00F.J SCLIC TYPE 316 STAINLESS STEEL RING JOINT GASKET FOR RTJ FLANGE. ANSI B16.5. BRINELL HARCNESS 160. 0.04 TO 0.08 PER CENT CAPPON. (NOTE- MINUS 325 TC 1500F.) SPIRAL-WOUND. 316 STAINLESS STEEL-ASBESTOS GASKET. FLEXITALL CG. GARLOCK CR. LAMONS WR. PARKER P-913 OR STERLING GP. (NOTE- MINUS 325 TO HOOF.) SF IRAL-WOUND. 316 STAINLESS STEEL-TEFLON GASKET. FLEXITALLIC CC. GASLOCK CR. LAMONS WR, PARKER P-913 OR STERLING GR. , (NOTE- MINUS 50 TO +450F.) LEAD RING GASKET FCR ANSI B16.5. SMALL TONGUE AND GROOVE FLANGE. STERLING PM CR AMgRAFLEX LEAD. (NOTE- MINUS 200 TO 200F. ) STD FLAT RING GASKET 1/16 INCH THICK NEOPRENE. GARLOCK 7986. STERLING 4 05C OR HERCULES 517. (NOTE- MINUS 50 TO +250F.) STD FLAT RING GASKET 1/8 INCH THICK NEOPRENE. GARLOCK 7986. STERLING 4C50 OR HERCULES 517. (NOTE- MINUS 50 TO 250F.) FULL FACE GASKET, l/ INCH THICK NEOPRENE. GARLOCK 7986. STERLING 405C OR HERCULES 517. (NOTE- MINUS 50 TO +250F.) SOLID SOFT IRON RING JOINT GASKET FOR 2500-LB RTJ FLANGE. ANSI B16.5. PR 1 NELL HARCNESS 60-9C. (NOTE- MINUS 20 TO 750F.) .TEFLON ENVELOPE STYLE GASKET. 3/16 INCH THICK FILLER. JCHNS-HANVILLE JH-933-C-8360 . GARLOCK 8764 OR STERLING B85-V (NOTE- MINUS 325 TO 450F.) TEFLON ENVELOPE STYLE GASKET. 1/6 INCH NEOPRENE FILLED. PEABODY DCRE E-26 OR STERLING 885-V/4050. (NOTE- MINUS 50 TO 200F.) roxM hoc-m i i ALU INFORMATION HEREON IS THE CONFIDENTIAL FROFERTV OF THE DON CHEMICAL COMFANV. SUBJECT TO RETURN ON DEMAND AND MUST NOT BE MADE FUBLIC OR REPRODUCED WITHOUT WRITTEN AFFROVAL. THE DOW CHEMICAL COMPANY DOW ENGINEERING SPECIFICATION GASKETS AND LINED PIPE SPACERS 4- 9*86 P*6E 5 Of 8 ITEM NO G-29 G-29A G-30 G-31 G-33 G-33L G-34 G-24A G "25 G-35A G-36 G-36A G "27 DESCRIPTION STO FLAT RING GASKET. 1/16 INCH THICK VITGN RUBBER. GARLOCK 9663. STERLING 770 OR AMERAFLEX 1444. (NOTE- MINUS SO TO 400F.) STD FLAT RING GASKET. 1/8 INCH THICK VITON RUBBER. GARLOCK 9663. STERLING 770 OR AMERAFLEX 1444. (NOTE- MINUS 50 TO 4OOF.) TEFLON HALF GASKET. PLASTIC LINED PIPE DEPARTMENT. DOW CHEMICAL COMPANY. FOR USE WITH DOW PLASTIC LINED STEEL PIPE. (NOTEMINUS 20 TO +250F.) '.ST02I 1079 SOLID SOFT ANNEALED INCONEL RING JOINT GASKET FOR RTJ FLANGE. ANSI 8 16.5. (NOTE- MINUS 325 TO 1200F.I CO ...-1j SOLID SOFT ANNEALED NICKEL RING JOINT GASKET FOR RTJ FLANGE. CD ANSI 816.5. (NOTE- MINUS 325 TO +600F.1 PO SOLID SOFT ANNEALED LOW CARBON NICKEL RING JOINT GASKET FOR RTJ FLANGE. ANSI ei6.5. (NOTE- MINUS 32S TO 1200F.) ~T C' ---J SP IRAL-WOUNC. MONEL-ASBESTOS GASKET. FLE X IT ALL IC-* CG . GARLOCK ^ CR. LAWONS WR. PARKER P-913 CR STERLING GP. (NOTE- MINUS 325 TO 800F.) SPIRAL-WCUNC. MONEL-TFFLON GASKET. FLEXITALLIC CG. GARLOCK CR . LAMONS WR. PARKER P-913 OP STERLING GR. (NOTE- MINUS 325 TO 450F.) 5PIPAL-WOUND. NICKEL-ASBESTOS GASKET. FLEXITALLIC CG. GARLOCK CR. LAMONS WR. PARKER P-913 OR STERLING GP. (NOTE- MINUS 225 TO +900F.) SPIRAL-WOUND. NICKEL-TEFLON GASKET. FLEXITALLIC CG. GARLOCK CR. LAMONS WR, PARKER P-913 OR STERLING GR. (NOTE- MINUS 325 TO 450F.) STD FLAT RING GASKET. 1/16 INCH THICK WHITE ASBESTOS. JCHNS-MANVILLE JM-61 OR NICOLET 226. (NOTE- MINUS 200 TO +70CF.) STD FLAT RING GASKET. 1/8 INCH THICK WHITE ASBESTOS. JCHNS-MANVILLE JM-61 CR NICOLET 226. (NOTE- MINUS 200 TO +700F.) SP IRAL-WCUMO . INCONEL-CERAMIC (FIGERFRAX) GASKET. LAMONS WR. (NOTE- FOR HIGH TEMP SERVICE TO 20Q0F.) FORM HOC-B011 *LL INFORMATION MCREON IS TMI CONFIOCNTIAL AROPtOTV OF THE OOW CHEMICAL COMRANV, SUBJECT TO RETURN* ON DEMAND AND MUST NOT BE MAOE RUBLIC OR RERROOUCEO WITHOUT WRITTEN APPROVAL. THE DOH CHEMICAL COMPANY DOW ENGINEER INC SPECIFICATION GASKET S AND LINED PIPE SPACERS E48-8S0 4- 9-86 PAGE 6 Of 8 ITEM NO G-38 G-39 G-39 A 6-40 G-40A G-40AC G-40C G-41 G--41A G--42 G-43 G-44 DESCRIPTION STANDARD FLAT RING GASKET. 0.015 INCH THICK GRAFOIL GTA UNION CARE IDE CORP. (NOTE- MINUS 200 TO +700F.) STD FLAT RING GASKET. 1/16 INCH THICK GYLON. GARLOCK 37719. (NOTE- MINUS 200 TO 500F. SIZES 3/4 THRU 16.) STD FLAT RING GASKET. 1/8 INCH THICK GYLON. GARLOCK 37719. (NOTE- MINUS 200 TC +500F, SIZES 3/4 THRU 16.> SPIRAL-WOUND. 304 STAINLESS STEEL-ASEESTOS GASKET. FLEXITALLIC CG. .GARLOCK CR. LAMONS WQ. PARKER P-913 OR STERLING GR (NOTE- MINUS 425 TO M100F.) SPIRAL-WOUND. 304 STAINLESS STEEL TEFLON GASKET. FLEXITALLIC CC GARLOCK CR LAMONS WR. PARKER P-913 OR STERLING GR. (NOTE- MINUS 425 TO +450F.) SPIPAL-WOUND 304 STAINLESS STEEL TEFLON STEEL GAGE RING. FLEXITALLIC CG GARLOCK PARKER P-913 OR STERLING GR. (NOTE- MINUS 425 TO 4450F.) GASKET WITH STAINLESS CR. LAMONS WR. SFIPAL-WOUNO. 304 STAINLESS STEEL-ASBESTOS STAINLESS STEEL GAGE RING. FLEXITALLIC CG. WR. PARKER P-913 OR STERLING GR. (NOTE- MINUS 425 TO MIOOF.) GASKET WITH GARLOCK CR. 1 LAMONS STANDARD FLAT RING GASKET 1/16 INCH THICK NEOPRENE-ASBESTOS. GARLOCK 7228. JOHNS-MANYILLE JM-76 OR NICOLET 355. (NOTE- FOR FREON SERVICE. MINUS 150 TO *300F.l STANDARD FLAT RING GASKET 1/8 INCH THICK NEOPRENE-ASBESTOS. GARLOCK 7228. JOHNS-MANV ILLE J**-T6 CR NICOLET 355. (NOTE- FOR FREON SERVICE. MINUS 150 TO 300F.) FULL FACE GASKET. 1/e INCH THICK ETHYLENE PROPYLENE RUBBER. (NOTE- MINUS 60 TC +2S0F.) FULL FACE GASKET. 1/e INCH THICK VI TON RUBeEP. LITHARGIC CURED. 60 DUPOMETER OR LESS HARDNESS. MOSITES 1035 CURED. SPIRAL-WOUND 304 STAINLESS STEEL-ASBESTOS GASKET WITH STAINLESS STEEL INNER AND OUTER COMPRESSION-GAUGE RINGS. ID SAME AS SCH 5S PIPE. FLEXITALLIC CGI. GARLOCK CRI. LAMONS WRI, PAPKER P-913-IR OR STERLING GR-IR. ' S T 0 2 I1080 foam hoc-m u all information hereon is the confidential froferty OF THE DOW chemical company. SURJECT TO RETURN ON DEMAND AND MUST NOT EE MADE PUBLIC OR REPRODUCED WITHOUT WRITTEN APPROVAL. THE DOW CHEMICAL COMPANY DOW ENGINEERING SPECIFICATION GASKETS ANO LINED PIPE SPACERS 4- 9-ae PAGE 7 of.3 ITEM NO G "44 A G-4S G "45 A 6-46 G-47 G-4P 6--4 9 G-SPACERS G-15 1 G- 15 2 G - 15 3 G - 15 4 G-155 G-156 G-157 G " 15 8 G " l 59 G" 160 DESCRIPTION SPIRAL-WOUND 304 STAINLESS STEEL-TEFLON GASKET WITH STAINLESS STEEL INNER AND OUTER COMPRESS ICN-GAUGE RINGSp ID SAME AS SCH SS PIPE. FLEXITALLIC CGI. GARLOCK CRI . LAMONS WRI, PARKER P-913-IR OR STERLING GR-IR. STD FLAT RING GASKET. 1/16 INCH THICK TEFLON (TFE) * GARLOCK OR RESISTCFLEX. (NOTE- MINUS 50 TO *S0CF.) STD FLAT RING GASKET. 1/8 INCH THICK TEFLON (TFE). GARLOCK OR RESISTOFLEX (NOTE- MINUS 50 TO *500F.) SPIRAL-WOUND. INCONEL-GPAFOIL GASKET, FLEXITALLIC CG. OR LAMONS WP. (NOTE- FOR HIGH TEMP SERVICE TO 2000F.) NEOPRENE GASKET AS FURNISHED BY VENDOR FDR CONCRETE CYLINOER PIPE. STD FLAT RING GASKET. 1/16 INCH THICK BLUE-GARD COMPRESSED NCN-AS8ESTCS. GARLOCK STYLE 3000. (NOTE - MINUS 20 TO 600 F SIZES 3/4 THRU 54.) 2STO 11081 STD. FLAT RING GASKET, t/B INCH THICK eLUE-GARD COMPRESSED NCN-ASBESTOS. GARLOCK STYLE 3000. (NOTE - MINUS 20 TO 600F. SIZES 3/4 THRU 54.) FOLLOWING ARE SPACERS TO BE UTILIZED WITH OOW PLASTIC-LINED PIPING SYSTEMS. USE N-223 FOR SARAN9 RESIN SPACERS. '"7 CO q ^ 1/2" THK RING SPACER. SARANP RESIN. DOW FIG. 230. 1/2" THK POLYPROPYLENE RING SPACER. OOW FIG. 230 1/2" THK KYNAR RING SPACER. DOW FTG. 230 ___ O QD 1/2" THK TEFLON RING SPACER. DOW FIG. 230 1 1/2" THK PEVELLED RING SPACER. SARAN* RESIN. DOW FIG. 230 1 1/2" THK POLYPROPYLENE BEVELLED RING SPACER. DOW FIG. 230 1 1/2" THK KYNAR BEVELLED RING SPACER. OOW FIG. 230 1 1/2" THK TEFLON BEVELLED RING SPACER. COW FIG. 230 1/2" THK BLIND SPACER. S A RAN 9 RESIN, DOW FIG. 232 1/2" THK POLYPROPYLENE eLIND SPACER. DOW FIG. 232 FORM H O C -M U ALL INFORMATION HEREON IS THE CONFIDENTIAL FNOFERTY OF THE DOW CHEMICAL COMPANY. SUBJECT TO RETURN ON O M AN O ANO MUST NOT BE MADE PUBLIC OR REPHOOUCEO WITHOUT WRITTEN APPROVAL. THE DO* CHEMICAL COMPANY DOW ENGINEERING SPECIFICATION GASKETS ANO LINED PIPE SPACERS ITEM NO 6-161 G-162 DESCRIPTION 1/2" THK KYNAR BLINO SPACER* DOW FIG. 232 1/2" THK TEFLON BLIND SPACER* DOW FIG. 232 E8-850 A- 9-86 PAGE 8 Of 8 S T 0 2 I1082 I FORM HOC N i l ALL INFORMATION HEREON IS THE CONFIDENTIAL FROFERTY OF THE DOW CHEMICAL COMFANY, SUBJECT TO RETURN ON DEMAND ANO MUST NOT BE MADE PUBLIC OR REFROOUCCO WITHOUT WRITTEN APPROVAL. S T 02I1083 PIPING CATALOG DESCRIPTIONS DOW CHEMICAL U. S. A. MICHIGAN DIVISION DATE: PAGE: 9-4-B6 22 ITEM G--101*M . G-102*M G-103*M G-104*M G-105*M G-106*M G-107*M G--1OS*M G-l09*M DESCRIPTION PLATE B16. 5 150 LB ^-^InTROM-^I OF FLANGES: 2 TO lr~~---- ---3/4^L_THICK 10 TO 12" 1" n=rt4C^ 1 1 (SAfcJkLr'MAI L'KiALTrcT BE CHOSEN TO^BE^SulTABLE FOR PROCESS CONDITIONS SPIRAL-WOUND SPIROTALLIC STEEL-ASBESTOS. 1/8 INCH THICK GASKET, PARKER P-911. GASKETS ARE NOT REQUIRED WITH RADIAL LOCK SYSTEM, EXCEPT WHERE CONNECTION TO EQUIPMENT OR PIPING OTHER THAN RADIAL LOCK. WHERE GASKETS ARE REQUIRED IN A RADIAL LOCK SYSTEM, USE A FLAT GASKET MADE OF A GASKET MATERIAL SUITABLE FOR THE PROCESS FLUID IN THE SYSTEM. GASKETS NOT REQUIRED WITH MORAF <R> SYSTEM EXCEPT WHEN CONNECTING TO EQUIPMENT OR PIPING OTHER THAN MORAF. GASKET MATERIAL TO BE CHOSEN TO BE SUITABLE FOR PROCESS CONDITIONS. GASKET SHALL BE FULL FACE TYPE. GASKETS FOR THIS SPECIFICATION SHALL BE FULL FACE ELASTOMER GASKETS HAVING A SHORE "A" HARDNESS OF 50 TO 60. GASKET MATERIAL TO BE CHOSEN TO BE SUITABLE FOR PROCESS CONDITIONS. WHERE GASKETS ARE REQUIRED IN CONJUNCTION WITH A MORAF<R> SYSTEM, USE A TEFLON ENVELOPE GASKET OR A FLAT GASKET MADE OF A MATERIAL SUITABLE FOR THE PROCESS FLUID IN THE SYSTEM. FULL FACE GASKET. 3/16 OR 1/4 INCH THICK BUTYL SHEET RUBBER HAVING A SHORE "A" HARDNESS BETWEEN 50 AND 60. (NOTE- USE WITH FRP FLANGES. ) WHERE GASKETS ARE REQUIRED IN CONJUNCTION WITH A MORAF<R> SYSTEM, USE THE FOLLOWING GASKET OR GASKETS. (NOTE- SELECT PROPER **** The catalog continued on the next page ' 2ST0 11084 PIPING CATALOG DESCRIPTIONS DOW CHEMICAL U. S. A. MICHIGAN DIVISION DATE: PAGE: 9-4-86 23 ITEM G-110*M G-26A*M G-26AW*M . G-28CLT*M G-2BCRT*M G-35C*M G-36*M G-36A*M G-36AJ*M G-36F*M G-36J*M G-42*M G-44A*M DESCRIPTION GASKETS AND INSERT AFTER THIS NOTE. ) STD. FLAT RING GASKET - 1/16 INCH THICK UNILION JOINTING NO. 433 (GREEN FINISH) FROM THE JAMES WALKER PACKING CO. , INC. ^ GO STD FLAT RING GASKET 1/8 INCH THICK WHITE NEOPRENE. F* STD. FLAT RING GASKET, 1/8 INCH THICK WHITE NEOPRENE (FOOD GRADE MATERIAL - FDA APPROVED) TEFLON ENVELOPE GASKETS- TYPE CLT WITH COMP. ASBESTOS CORE AND FELTED ASBESTOS EACH SIDE. GARLOCK STYLE 9026-CLT. q qq -C~ TEFLON ENVELOPE GASKET- TYPE CRT WITH CORRUG ATED STEEL CORE AND FELTED ASBESTOS EACH SIDE PFAUDLER CRT OR GARLOCK STYLE 8571-CRT. (NOTE- USE WITH GLASS LINED EQUIP. NOZZLES, GLASS LINED PIPE, FITTINGS AND VALVES. ) SPIRAL-WOUND, ALLOY 20/ ASBESTOS GASKET, FLEXITALLIC CG, PARKER P-913. STD FLAT RING GASKET 1/16 INCH THICK WHITE ASBESTOS, DURABULA-WHITE STD FLAT RING GASKET 1/8 INCH THICK WHITE ASBESTOS, DURABULA-WHITE STD FLAT RING GASKET, 1/8 INCH THICK WHITE ASBESTO JOHNS-MANVILLE JM-61. FULL FACE FLAT GASKET 1/8 INCH THICK, WHITE ASBESTOS, JM 61. STD FLAT RING GASKET, 1/16 INCH THICK WHITE ASBESTOS, JM 61. STD. FLAT RING GASKET, 1/8 INCH THICK ETHYLENE PROPYLENE RUBBER. (NOTE- MINUS 60 TO +250F.) SPIRAL-WOUND 304 STAINLESS STEEL-TEFLON GASKET WITH STAINLESS STEEL INNER AND OUTER COMPRESSION RINGS, ID TO MATCH PIPE ID. The catalog continued on the next page *** S T 0 2 I1085 PIPING CATALOG DESCRIPTIONS DOW CHEMICAL U. S. A. MICHIGAN DIVISION DATE: PAGE: 9-4-86 24 ITEM G-44B*M G-44C*M G-45*M G-45A*M G-48B*M G-48C*M DESCRIPTION PARKER SPIROTALLIC P-9131. R. OR FLEXITALLIC CGI. SPIRAL-WOUND GASKET WITH CARBON STEEL OUTER COMPRESSION GAGE RING, 304 S.S. & ASBESTOS WINDINGS AND 304 S. S. INNER RING. FLEXITALLIC CGI, PARKER P-913-IR OR LAMONS WRI. SPIRAL-WOUND 304 STAINLESS STEEL-ASBESTOS GASKET WITH STAINLESS STEEL INNER AND OUTER COMPRESSION-GAUGE RINGS, ID TO MATCH PIPE ID, FLEXITALLIC CGI, GARLOCK CRI, LAMONS WRI, PARKER P-913--IR OR STERLING GR-IR. FULL FACE GASKET, 1/16 INCH THICK TEFLON (TFE), GARLOCK OR RESISTOFLEX. (NOTEMINUS 50 TO +500F. ) FULL FACE GASKET, 1/8 INCH THICK TEFLON (TFE),GARLOCK OR RESISTOFLEX. (NOTEMINUS 50 TO +500F. ) SPIRAL-WOUND GASKET WITH CARBON STEEL OUTER COMPRESSION GAGE RING, 316 S.S. & ASBESTOS WINDINGS AND 316 S. S. INNER RING. FLEXITALLIC CGI, PARKER P-913--IR OR LAMONS WRI. SPIRAL-WOUND 316 STAINLESS STEEL- ASBESTOS GASKET WITH STAINLESS STEEL INNER AND OUTER COMPRESSION-GAUGE RINGS, ID TO MATCH PIPE ID, FLEXITALLIC CGI, GARLOCK CRI, LAMONS WRI, PARKER P-913--IR OR STERLING GR-IR. The catalog continued on the next page #### * S1021 I 094 *Hhf . SCOPE The intent and purpose of this specification is to provide for a complete Diping system. The contractor shall provide sufficient labor, materials except as noted, tools, scaffolding, etc. to furnish and install all items indicated on the plans and/or in the specifications relating to the contract. The con tractor shall also provide certificates of insurance as reouired by the owner. Any Question regarding either the plans or specifications shall be brought ud by the contractor before bids are submitted. All work shall be carried out in conformity with the best prscticesin the field in a workmanlike manner and to the satis faction of the owner's representative. Work shall comply with all local, state and national codes ar.c agencies having jurisdiction. Contractors shall make the necessary applications, nay the recuired fees, secure the proper permits and furnish the owner with certificates of approval of their work with application for final payment. All alterations, repairs due to modification, debris removal in connection with this contract shall be the responsibility of this contractor. 'u II. WORK INCLUDED 1. Compressed air pipinc, fittings and valves 2. Gas piping, fittings and valves 3. Hot oil pining, fittings ar.d valves 4. Nitrogen piping, fittings and valves 5. Process piping, fittings ar.d valves f. Steam piping, fittings and valves 7. Vacuum piping, fittings and valves 8. Water piping, fittings and valves 9. Hangers, sleeves 10. Tests 11. Small in-line eouipment and instrument installation 12. Guarantee III. This contractor shall read the specifications and examine the cravings of all other trades with which his work has or nav have contact. / S T 0 2 I1095 J ' IV. COMPRESSED AIR A. Pipe All compressed air pipe tc be furnace butt voided, AFTM-A120 galvanized, OH or EF process, Sch. 40, threaded ends, size range 1/4 inch to 2 inches. P. Fittincr 1. All compressed air unions to be galvanized, ground joint, iron to brass seats eaual to AFTM-A197, threaded, size range 1/4 inch to 2 inch for 150 psi service. 2. -All other fittings to be galvanized eaual to AFTM-A197, threaded, size range 1/4 inch to 2 inch for 150 psi service. C. Valves 1. All compressed air ball valves to be bronze body ecual to ASTM-B62, threaded, bronze, trim, Eur.a N seats and seals, wrench operated, Worcester Econ-O-Miser cr eoual, size range 1/4 inch to 2 inch for 150 psi service. 2. All compressed air globe valves tc be bronze body eaual to ASTM-Bf2, threaded, bronze trim, renewable composition disc for air service, internal screw, risir.c stem, union bonnet, ir.tearal seats, size range 1/4 inch to 2 inch for 150 psi service. 3. All compressed air check valves tc be bronze body eaual to ASTM-B62, lift check, bronze trim, renewable composition disc for air service, threaded, union car, size range 1/4 inch to 2 inch for 150 psi service. D. Joints In all threaded joints, the threads to be wrapped with Teflon tape to withstand 150 rsi when made ud, minimum 2 turns. E. Gaskets All compressed air gaskets to be 1/16 inch thick asbestos, JM-60 or equivalent. S T02I1096 V GAP PIPING (Natural Gas) A. Pise All cas pipe to be sear.less carbon stool eoual to ASTM-A53, Grade B, OH cr EF, Schedule 40, size range 3/4 inch to 2 inch for 150 psi service, threaded ends. B. Fittings All gas fittings to be malleable iron eoual to AST.M-A19 7 for 150 psi in size range 3/4 inch to 2 inch. Unions to be the same exceot ground jcir.t brass to iron seat. C. Valves'-. Ail gas "alves to be bronze or malleable iron, dug cocks cr globe valves as recuired bv local reculaticr.s. 3 S T 02I1097 VI HOT OIL A. ripina All hot oil piping to be sea-less carbon pipe equal to ASTMA53, Grade B, OH or EF, Schedule 40, size 1/2 inch to 3 inch. B. Valves 1. All hot oil gate valves to be drop forged steel ASTM A-182, Grade F2 or equivalent, socket veld ends, outside screw and yoke, ris ing stem, bolted bonnet and gland gasket joint with stainless steel ASTM A-132, Grade F6 trir. and stem for 800 psi service at 850F, Henry Vogt Machine Co. SW-12112 to SK-12113, size range 3/4" to 2", or equivalent. 2. All hot oil glebe valves to be drop forged carbon steel ASTM A-105, Grade 2, socket veld ends screw bonnet, gasket joint, inside stem screw, integral seat with stainless stem ASTM A-182, Grade F6, for 5000 csi service at 4 50T, Henry Vogt Machine Co. 9874 to 9878 series size range 1" to 2", or equivalent. 3. All hot oil valves to be installed with stems at an angle of 15 below horizontal where possible. Valves in vertical, lines to have stems horizontal. 4. Ail hot oil strainers to be cast carbon steel equal to ASTM-A216-58T, Grade WCB with weld ends "Y" construction with Monel 1/16" perforate basket. C. Fittings 1. All hot oil fittings to be forged carbon steel equal to ASTM-Alei, Grade 1, 300 psi welded ends. 2. All hot oil gaskets to be Flexitallic 316 stainless steel with blue African asbestos, type GG. 3. All hot oil joints shall be 300 psi ASA drilling forged steel flanges equal to ASTM-A1E1, Grade 1. These joints shall be kept to a minimum. Where special fittings such as screwed thermowells or screwed rotary joints, etc. are supplied, these screwed joints are tc be backwelded. C. yielding All hot oil pipe welding shall conform, to ASA-E31.3 1959 , Chapter 7, heading 327 Welding. V STO2 I 1098 VII. NITROGEN A. Piping All nitrogen piping shall be ASTM-B88, Tyoe L, com>er tubing, size 1/2 inch to 2 inch. B. Valves All nitrogen valves shall be non-metallie disc, globe, bronze 150 psi solder ends internal screw, rising stem, 1/2 inch to 2 inch. Discs for gas service, Fairbanks Figure 0582 or equivalent. C. Fittihgs All .nitrogen fittings to be copper solder tyoe 1/2 inch to D. Solder All nitrogen piping joints shall be soldered with 95/5% lead tir. solder. s ST02 I 1099 VIII. PROCESS PIPING 1. Prepolymer Piping A. Pipe All rigid prepolymer pipe to be seamless steel equal to ASTM-A53, Grade B, OH or EF process. Schedule 40, weld ends, size rar.ce 3 inch to 6 inch except where piping makes up to existing screwed connections when threaded ends will be used. All prepolymer flexible metal hose to be supplied by Essex Chemical with suitable ends anc of suitable size to be installed ir.cc system. , 3, Fittings All prepclyrer fittings to be steel butt welding equal tc AST.M-A234 , Grade , size range 3 inch to 6 inch fcr 150 psi ser vice . Ail prepolymer flanges to be steel weld neck equal to AS7M-A181, Grade 1, size range 3 inch to 6 inch for 150 psi service. C. Valves All prepolymer butterfly valves to be ductile iron body equal to AST.M-A339, ductile iron disc, viton seat size range 3 inch tc inch for 150 psi service (Derco, NE series, lug type or equivalent). V.'ocster Economizer fcr 2 inch or smaller. Teflon fitted. 3. Gaskets All prepolymer gaskets to be 1/15 inch thick asbestos, JM-6 5 or equivalent. E. Joints In all threaded joints, the threads to be wrapped with Teflon tape tc withstand 150 psi when made up, minimum 2 turns of tape 2. Sealant Fitinc All sealant rigid pipe to be seamless steel eaual tc AS7!'.-A5 3, Grade B, OH or EF process. Schedule 40, wold ends size rar.ce 4 tc 6 inch. Ail prepolymer flexible metal hcso to bo supplied bv Essex Chemical with flanged ends for installation into the* system." B. Fittings All sealant fittings to be steel but.t welding eoual tc A57K-A234, Grade WPE, size range 4 inch to 8 inchr-.-; for 150 psi ser vice . ST02II 100 VIII. Process Piping Cont'd -2- All sealant flanges to be steel weld neck equal to ASTMA181, Grade 1, size range 4 inches to 8 inches for 150 psi service. C. Gaskets All sealant gaskets to be 1/16" thick asbestos, JM-60 or equivalent. 3. Isocyanate Piping A. Pipe All rigid pipe to be 304 stainless steel equal to ASTMA312 commercial grade, schedule 10 lap joint ends or butt welded, size 1 inch to 2 inch. No straight run of pipe to exceed 40 foot with out flanged union. B. Fittings All fittings to be 304 stainless steel equal to A.S.A. B36.19, schedule 10, butt welded, size range 1 inch to 2 inch. All connections to be lap joint flanged with 304 stainless steel stub ends and 150 pound A.S.A. steel lap joint flanges. C. Valves All valves to be 304 or 316 stainless steel ball type with teflon seats and seals, gate or globe with stainless steel seats and discs and braided teflon packing, flanged ends 150 psi A.S.A. drillings, size range 1 inch to 2 inch. D. Joints All joints to be flanged laps with teflon envelop over hard asbestos ring gaskets. 4 . Pining other than Preoolyr.er, Sealant and Isocyanate All rigid pipe tc be seamless steel equal to ASTM-A53, Grade B, OH or EF process, Schedule 40, threaded ends, si2e range 1/2 inch to 2 inch. B. Fittings All fittings to be nalleable iron equal to ASTM-A197, threaded, size range 1/2 inch to 2 inch for 150 psi service. Unions to be the same except ground joint, brass to iron seat. C. Valves All valves to be ball type of bronze body equal to ASTM-B62 threaded, bronze trim, teflon seats and body seals, wrench operated, Worcester Econ-o-Miser or equal, size range 1/2 inch to 2 -7 " VIII. Process Piping Cont'd -3- for 150 psi service. D. Joints On all threaded joints, the threads to be wrapped with teflon tape and to withstand 150 psi when made up, minimum 2 turns of tape. E. Gaskets All gaskets for diol, triol, plasticizer, and toluene service tc be.1/16" thick asbestos, JK-50 or equivalent. ST021 1101 3 IX STEAM A. Piping All steam Diping shall be seamless carbon steel eoual to ASTM-A53, Grade P, OH or EF, Schedule 40, threaded and sizes 1/2 inch to 3 inch for 15 psi. B. Valves - ST02II 102 All steam valves to be bronze body eoual to ASTM-B^l, with bronze trim ecual tc ASTM-B62, threaded, for 200 psi. 1. Gate valves to be internal screw, rising stem, size range 1/2 inch tc 3 inch'with union bonnet. 2. Globe valves to be intern;=1 scr disc, in tegrai seat, size range 1/2 in ch tc 3. Check -'elves to be svinc check integral seat, size range 1/2 inch to 3 inch renewable disc and C. Fittings All steam fittings to be ralleable iron eoual to AFTM-A197, threaded, size range 1/2 inch to 3 inch for 150 csi service. Unions to be the sane except ground joint, brass to iron seat. D. Trans All steam, traos to be Armstrong disc tyre CD-33 or eoual, threaded. E. Strainers All stear. traos to be Sarco, semi-steel tvoe AT, threaded or equal with 1/32'' Derforated brass screen and 1/4" NPT threaded blow down connection. F. Joints In all threaded joints, the threads to be vracned with Teflon tape to be pressure tight when made up, minimum 2 turns of tame. G. Gaskets lent. All steam, gaskets to be 1/16" thick asbestos JM-60 or eouiva- ST02II 103 X VACUUM A. Pipina All vacuum piping to be seamless steel pipe eaual to A5TM- A53, Grade B, OH or EF, Schedule 40, size range 3/4 inch to 3 inch. B. Valves 1. All vacuum ball valves to be bronze body eaual to ASTM- B62, threaded, bronze trim, Teflon seats and body seals, wrench operated, Worcester Fcon-O-Yiser or eaual, size range 3/4 inch to 3 inch for 150 psi service. 2. All vacuum check valves to be brcr.ze body eaual to ASTM-B62, svi.-.g check 'with renewable disc and integral seat, size range 3/4 inch to 3 inch for 150 psi service. C. Fittinas All vacuum fittings to be malleable iron ecual to ASTM-A197, threaded, size range 3/4 inch to 3 inch fcr 150 psi service. Unions to be the same except ground joint, brass to iron seat. D. Joints In all threaded joints the threads to be wrapped with Teflon tape and to be pressure tight when made uc, minimum 2 turns of tape. E. Gaskets All vacuum gaskets to be 1/16 inch thick asbestos, JM-60 or equivalent. /o $T02 I I I 04 XI. WATER (Cooling) A. Piping All cooling water piping to be seamless r:teel pipe eaual to ASTM-A53, Grade B, OH or EF, Schedule 40, threaded ends, size range 1/2 inch to 2 inches. B. Valves 1. All cooling water gate valves to be bronze body and bronze trim equal to ASTM-B62, threaded, solid wedge, internal screw, risir.c stem, integral seats, threaded bonnet, size range 1/2 inch to 2 inches for 125 psi service. 2. All cooling water globe valves to be bronze body and bronze trim ecu a I- to A.STM-B62, threaded, renevable bronze disc, internal screv-, rising suer., threaded bonnet, size range 1/2 inch to 2 inches for 125 psi service. 3. All cooling water check valves to be bronze body and bronze trim, ecual to ASTM-B*2, threaded, swing check, renewable bronze disc, threaded cap, size range 1/2 inch to 2 inches for 125 psi service. C. Fittines All coding water fittings to be malleable iron eoual to ASTM- A197 threaded, size range 1/2 inch to 2 inches for 150 psi service. Unicr.s to be the same except ground joint, iron to brass seats. D. Joints In ail threaded joints, the threads to be wrapped with Teflon tape and to be pressure tight when made ut>, minimum 2 turns of tape. E. Gaskets .All vater gaskets to be 1/1 inch thick asbestos, JM-60 or equivalent. K XII. HANGERS AND SLEEVES A. All piping shall be properly supported, anchored or guided to prevent undo line deflection, excessive vibration and to protect piping and connected equipment from excessive loadings and expansion loadings. Do not support piping from any other piping. B. Use adjustable hangers for overhead piping in groups. For individual hangers, provide hangers having adjustable swivel pipe rings. Support piping near floor from sidewalls or floor by approved wrought iron brackets and stanchions in such manner as to maintain its alignment while making suitable provision for necessary expansion. C. Where piping passes through masonary or stud walls protect the pipe with "'wrought iron pipe sleeves equal to the width of the wall and of suitable diameter to accommodate bare pipe or insulated pipe as the case may be. D. Where sleeves are to be installed in existing walls, cut hole, set sleeve and caulk around sleeve after installation. E. Where pipe passes through existing roofs, proper flashing, rain protection, heat protection, etc. shall be used. ST02II 105 ST02II 106 XIII. TESTS All welded pipe shall be pressure tested after installation. The test shall consist of injecting fluorinated refrigerant into the system and pressurizing to 40 psig with nitrogen or air. A halide tester will then be used at each joint and weld to determine leakage. The test will be approved by Essex Chemical representative before acceptance. XIII. SMALL IK-LIKE EQUIPMENT & INSTRUMENT INSTALLATION The piping contractor shall be responsible for the installation and support of certain in line equipment such as air reducing sets , line filters, etc. In addition the contractor shall be responsible for installation and mounting of ncn-electrical instruments such as buli type temperature recorders, pressure gages, thermometers, etc. All cf these items shall be supplied by Essex Chemical. XIV. Guarantee On completion of the work and before applying for final accept ance the piping contractor shall furnish a written guarantee stating that all work complies with all local, state and national codes and local agencies having jurisdiction; and that it will be free from defects of materials and workmanship for one year from the date of issuance of ov/ners final payment. The guarantee shall further state the contractor will at his own expense, repair and replace mechanical work which may become defective during the time of the guarantee, together with other v'ork damaged as a consequence of such defect. Defect shall be when an item ceases to conform to the contract documents. ST02!I 107 ADDENDUM__________ TO PIPING SPECIFICATION _________ DATED FEB. 28, 1974 VALVES: Substitution of iron body bronze trim globe and gate valves may be made in lieu of bronze body valves under the applica ble oringinal Specification. R, W. Davis May 10, 19 74