Document npoKr7KQYeeG497Q0D8pGnXy6

REVISION 1 MARCH 1972 HOT EQUIPMENT IHSULATION APPLICATION BTES 14-1-2.1C Page 1 of 6 SCOPE 1.1 This standard covers the mandatory requirements for materials and application of external Insulation for equipment within the design temperature range of 78 to 1200*F. 1.2 This standard is not applicable to boilers, furnaces, and storage tanks. SUMMARY OF ADDITIONAL REQUIREMENTS 2.1 Baytown Engineering Standard BTES 14-2-50.IB, "Insulation Materials, Purchase Descriptions," shall be used with this standard. 2.2 The following information shall be obtained from the drawings or insulation schedules: a. Equipment to be Insulated and extent of insulation if partial coverage is required. -- b. Equipment that requires special Insulation to prevent stress corrosion cracking of austenitic stainless steel. c. Total thickness of insulation required. . d. Insulation design temperature. ' e. Extent of Insulation designated as fireproofing. f. Equipment that requires insulation only for personnel protection. g. Equipment to be heat traced. ' DEFINITIONS 3.1 The term equipment is both mechanical equipment and vessels. 3.2 The tenn mechanical equipment is defined to include turbines and pumps. 3.3 The term vessel is defined to Include drums; towers, reactors, spheres, and exchangers. . MATERIALS 4.1 Materials shall be per BTES 14-2-50.IB with code numbers, sizes, widths, etc., as specified herein. Insulation materials, insulation covering, cements, accessories, etc. shall not contain any asbestos. INSULATION 4.2 Board Insulation shall be semirigid mineral wool Code Ho. 134, good for at least 700*F. " 4.3 Block Insulation shall be flat or curved calcium silicate blocks per Code No. II G0218 7 18. 18-0000767 131  BTE5 14-1-2.1C Page 2 BAYTOWN ENGINEERING STANDARO .J4.4 ' Pipe Insulation shall be calcium silicate sectional or segmental pipe covering Code Ho. 14. 4.5 Special Insulation shall be mineral vcol board, calcium silicate block, or calcium silicate pipe covering that contains less than 25 ppm chlorides or contains an Inhibitor that will prevent stress corrosion cracking of austeni tic stainless steel. 4.6 Blanket Insulation shall be 3-1nch-thick mineral fiber material with high perma nent resilience per Code No. 131. 4.7 Insulating cement shall be mineral fiber per Code No. 1103. INSULATION COVERING 4.8 The coior of all finish coatings and mastics shall be gray to match the color of Enjay coating Rust-Ban AK-6414. 4.9 Weatherproofing jacket shall be alunlnum according to the following: a. Sheets shall be l-l/4-1nch corrugated by 33-1nch minimum, width. Code No. J5, and rolls shall be 3/16-1nch corrugated by 48-Inch minimum width per Code Ho. J6 according to the following thickness schedule: Outside Diameter of Vessel In Feet Jacket Thickness In Inches Under 6 6 to 18 18 and Over 0.012 0.015 0.019 - b. Prefabricated heads shall be per'Code No. J4. ^4.10 * Weatherproofing mastic shall be a breathing type per Code No. J17. 4.11 Fireproof covering shall be electrogalvanized carbon steel jacket according to the following: a. Sheets shall be 0.010 Inch thick by 33-Inch minimum width with l-1/4-1nch corrugations In the long direction per Code No. J13. b. Rolls shall be 0.010 Inch thick by 48-inch minimum width with 3/16-1nch cross corrugations per Code No. J15. ' c. Preformed heads shall be 0.010 Inch thick, smooth. Interlocking gore type per Code No. J14. 4.12 Fireproofing mastic shall be a breather type per Code No. J19. ACCESSORIES . 4.13 Bands shall be stainless steel, 3/4 Inch wide x 0.015 Inch thick, Code No. A2. 4.14 Seals shall be stainless steel, closed type, for 3/4-inch x 0.015-inch bands. Code Mo. A23. - 4.15 Wire shall be 16 BWG stainless steel. Code No. A30. 4.16 Wire mesh shall be Hone!, Code No. A37. 18-0000768 002188 432 BAYTOWN ENGINEERING STANDARD 8TES ' 14-1-2.1C P*ge 3 4.17 4.18 4.19 4.20 Screws shall be No. 8 x 1/2 Inch long, sheet metal, stainless steel. Code No. A19. Welding stud caps shall be aluminum to match weld stud. Code No. A19. Expansion springs shall be stainless steel for 3/4-1nch-wide bands. Code No. AS. Mastic sealer/flashing shall be per Code No. J20. INSULATION APPLICATION GENERAL 5.1 Manholes and nozzles of vessels and equipment that are specified to be insulated shall only be insulated when required for personnel protection or when they are heat traced or contain steam. 5.2 Skirts or the bottom head of vessels inside skirts where the diameter is less than 4 feet 0 inch shall not be insulated, unless otherwise specified by Owner. 5.3 Surfaces to which insulation is applied shall be dry and free of all foreign matter. ._ 5.4 Insulation for personnel protection shall extend to a minimum height of 7 feet 0 inch above grade or platform. SU5 Pressure test shall be completed and all repairs made prior to installing insu lation over welds, flanges, or threaded connections. 5.6 Insulation shall be kept dry and protected against the elements during storage and all stages of application until the weatherproofing has been installed. 5.7 Install insulation with all joints tightly butted together. Stagger joints of multilayer construction. Point up cracks'and voids with insulating cfimen.t. 5.8 Install each board of mineral wool insulation in a slightly compressed condition in both directions. 5.9 Ins.tall insulation in two layers of equal thickness if the insulation design temperature is above 600*F. 5.10 - For insulation design temperatures through 700*F, install board insulation. Above 700*F, install pipe or block insulation as the inner layer and board insulation as the outer layer. 5.11 When special insulation is specified to prevent stress corrosion cracking, use low chloride insulation and/or inhibited insulation. VESSELS 5.12 Secure insulation on cylindrical vessels as followst a. Use wire on the bottom head of skirt-supported vessels. Use bands and seals in all other cases, except wire may be used to secure block or pipe insulation on vessels less than 4 feet in diameter. . 13-0000769 20 G0218J . 8TES 14-1-2.1C Page 4 BAYTOWN ENGINEERING STANDARD b. Space bands and wires as required to secure insulation but In no case shall they be spaced more than 12 inches apart. c. Secure insulation on the top head of vertical vessels per Figure 1 and the heads of horizontal vessels and the bottom head of vessels not supported on skirts per Figure 2. d. Secure insulation on the bottom head of skirt-supported vertical vessels by diagonally crossing wires in both directions between adjacent rows of clips. Secure ends of wire by twisting at every third clip. e. Install expansion springs on all bands that secure the outer layer of insu lation on the cylindrical sections of vessels' equally spaced around the cir cumference according to the following schedule: QUANTITY OF EXPANSION SPRINGS REQUIRED PER BAND Insulation Design Diameter Temoerature Range. *F Section in Feet 400-600 601-800 801-1000 T00R1201T 4 to 8 8 to 12 12 to 16 16 to 20 20 to 24 24 to 26 26 to 30 1I 111 1 22 1 22 233 233 334 2 2 3 3 4 4 5 f. With vessel in the cold condition, each spring shall be installed in tension to produce a 3/4-inch spring expansion. ' 5.13 Secure insulation on noncylindrical vessels (spheres, spheroids, etc.) by ' diagonally crossing wires in both directions between adjacent rows of clips. . s Secure ends of wire by twisting at every third clip. 5.14 Vertical vessels having insulation design temperatures above 400F shall have expansion joints installed below all support rings except at the bottom support. Installation shall be per Figure 3. 5.15 Weatherproof cylindrical vessels as follows: a. Install aluminum weatherproofing jacket on all sections except the bottom head of skirt-supported vertical vessels. b. Use sheets on vertical vessels and rolls on horizontal or inclined vessels. c. Install the jacket to shed water and overlap all edges 3 inches, but in no case less than two full corrugations. This includes lapping the bottom course over the lower Insulation support ring of vertical vessels. d. Support the bottom course on vertical vessels using welding studs and caps. A minimum of two studs shall be used through each sheet. Owner will pro vide studs installed on not more than 14-inch centers and installer of jacket shall provide caps'. Support the other courses with "S" clips fabri cated from 1-inch-wide x 0.030-inch-thick stainless steel. Type 302 or 304 material per Figure 4. Space "S" clips on centers jiot to exceed 14 Inches. e. Secure the rolls and sheets with bands spaced on not more than 6-inch centers. On vertical vessels, secure bands to sheets with screws on not more than 5-foot centers and in no case less than two screws per band. .21 002100 18-0000770 BAYTOWN ENGINEERING STANDARD BTE5 ' 14-1-2.1C Page 5 f. Expansion springs shall be provided for each band on cylindrical sections according to the schedule for securing Insulation. With the vessel In the cold condition, each spring shall have an Initial tension to produce 1-1/2-1nch spring expansion. g. Secure gore sections of prefabricated heads with screws on not more than 6-1nch centers. Attach prefabricated heads to shell Jacket with screws on not more than 6-1nch centers. 5.16 Weatherproof the bottom head of skirt-supported vessels and noncyllndrlcal vessels such as spheres, spheroids, etc., as follows: a. Cover Insulation with wire mesh and lace with wire. b. Apply a 1/4-lnch-thlck wet coat of weatherproofing mastic over the wire mesh. The mastic shall be smooth and completely cover the netting. 5.17 Fjin Insulation design temperatures below 401*F, apply a l/4-1nch minimum fillet of sealer/flashing mastic to weatherproof small openings between the jacket and vessel surfaces such as nozzles, manholes, etc. For temperatures of 401*F and above, do not Install the sealer/flashing but take extra precautions to Insure a good fit-up. MECHANICAL EQUIPMENT 5.18 If those Insulating materials specified In the General Section of this specifi cation cannot be economically applied. Insulating cement may be Installed but the thickness shall be Increased 50S. Weatherproof the Insulation with weatherproofing mastic and wire mesh as speci fied for noncyllndrlcal vessels. APPLICATION FOR FIREPROOFING e ( 6.1 Application for fireproofing shall be per the section, "Application for Insulation," with the following exceptions: ---*j a. Use calcium silicate insulation and insulating cement only. Do not use mineral fiber insulation. b. Insulation used to fireproof equipment composed of low melting point metals such as aluminum shall be Installed In two layers regardless of the Insul ation design tanperature. - c. Fireproofing jacketing shall be Installed In place of aluminum jacketing. d. A band shall be Installed not more than 2 Inches above all rows of studs supporting fireproofing Jacket on vertical cylindrical vessels. e. The insulation of equipment, noncyllndrlcal vessels, and the bottom head of vertical vessels supported on skirts shall be coated with the fire proofing mastic reinforced with wire mesh In place of the weatherproofing mastic. . 13-000077L 22 0012101 > EMO 0123 3 BAYTOWN ENGINEERING STANDARD BTES 14-1-2.IC Page 6 % IN. OlA. c.s. ROD. (NOT needed if nozzle IS OFF t ) WIRE OR BANOS STAINLESS STEEL INSULATION SUPPORT RINC OR CRIMPEO ROD AS REQUIRED WIRES OR BanO AND SEALS AS REQUIRED CONTINUOUS FLOATING RING FIGURE 1 - ATTACHMENT OF INSULATION TO TOP OF VERTICAL YE5SELS FIGURE 2 . ATTACHMENTS FOR HORIZONTAL VESSEL HEADS AND BOTTOM HEAD OF VERTICAL VESSELS WITHOUT SKIRT insulation BANDS INSULATION SUPPORT RING 3 IN. THICK RESILIENT MINERAL FIBER BLANKET COMPRESSED TO INCH ALUMINUM JACKET TO FIT WEATHER. PROOFING JACKET FIGURE 3 - EXPANSION JOINT OETAILS FIGURE 4 - MS" CLIP 18-0000772 23 C0213.2 runni oT /. 436 SCOPE 1.1 This standard covers the mandatory requirements for materials and application of external Insulation for aboveground piping and instruments within the Insu lation design temperature range of 78 to I200'F. SUMMARY OF ADDITIONAL REQUIREMENTS 2.1 Baytown Engineering Standard BTES 14-2-50.18, "Insulation Materials, Purchase Descriptions," shall be used with this standard. 2.2 The following Information shall be obtained from piping drawings. Instrument sketches, or Insulation schedules: a. Piping and Instruments to be insulated and extent of insulation if only partial coverage Is required." . b. The piping and instruments that require a special insulation to prevent stress corrosion cracking. _ c. Total thickness of insulation required. " d. Insulation design temperature. e. Extent of insulation designated as fireproofing. f. Piping and instruments that only require insulation for personnel protec - tlon. g. Piping and instruments that are heat traced. h. Areas specified to be insulated and subject to foot traffic. MATERIALS 3.1 Materials shall be per BTES 14-2-50.IB with code numbers, sizes, widths, etc., as specified herein. Insulation materials. Insulation covering, cements, accessories, etc. shall not contain any asbestos. INSULATION 3.2 Mineral fiber insulation shall be molded pipe covering per Code Number 140, prefabricated ell fitting Code Nunber 136, and prefabricated flange insulation Code Number 138. 3.3 Calciun silicate shall be molded pipe covering per Code Number 14, prefabricated ell fitting Code Number 12, and prefabricated flange Insulation Code Number 13. 3.4 Special Insulation shall be mineral fiber or calcium silicate pipe covering that contains less than 25 ppm chlorides or contains an inhibitor that will prevent stress corrosion cracking of austenitic stainless steel. 3.5 Blanket Insulation shall be 3-inch-thlck mineral fiber material with high permanent resilience per Code Nunber 131. 3.6 Insulation cement shall be mineral fiber type per Code Number 1103. 24 ` 002103 18-0000773 1 C UA A4 43o / . BTES 14-1-2.SC Page 2 BAYTOWN ENGINEERING STANDARD INSULATION COVERIN6 3.7 The color of all outside coatings and nasties shall be gray to match t^e color of Enjay coating Rust-Ban AK-6414. ' 3.8 Weatherproofing for pipe, weld tees, and end pieces shall be 0.012-inch-thick aluminum jacket, preformed sections with a longitudinal lock joint or roll stock ' per Code Number 06. 3.9 Weatherproofing for weld ells shall be 0.016-inch-thick aluminum jacket, pre formed or gore type with overlapping beaded joints per Code Number Jl. 3.10 Weatherproofing mastic shall be a breathing type per Code Number Jl7. 3.11 Fireproof -jivering for pipe, weld tees, and end pieces shall be 0.010-inch-thick electrogalvanized steel jacket, preformed sections with a longitudinal lock joint or roll stock per Code Number J1S. 3.12 Fireproof covering for weld ells shall be 0.010-inch-thick, electrogalvanized steel jacket, preformed or gore type with overlapping beaded joints per Code Number Jl6. 3.13 Fireproof mastic shall be a breathing type per Code Number J19. -- ACCESSORIES 3.14 /iber cloth shall be white, glass fiber per Code Number A7. 3.15 Wire shall be 16 Bwg stainless steel per Code Number A30. 3.16 4 3.17 Bands shall be: a. Aluminum, 3/8 inch wide x 0.020 inch thick per Code Number A3. /b. Stainless steel, 3/4 inch wide x 0.015 inch thick per Code Number A2. ' Seals shall be: a. Aluminum, short-wing type, for 3/8-inch x 0.020-inch aluminum bands per Code Number A24. '' b. Stainless steel, regular-wing type, for 3/4-inch x 0.015-inch stainless steel bands per Code Number A23. 3.18 - Screws shall be 1/2 inch long x No. 8 pan head, a. Code Number A18 for aluminun. b. Code Number A19 for stainless steel. 3.19 Insulation supports shall be 1/8-inch-thick carbon steel clamp-on type. The outside diameter, after installation, shall be 1/2 to 3/4 inch less than the outside diameter of the insulation. GENERAL APPLICATION ,0000^ va 4.1 Because of painting and pressure testing requirements, permission shall be obtained from Owner's representative before installing insulation. 25. ' 002134 t } 43s BAYTOWN ENGINEERING STANDARD BTES 14-1-2.X Page 3 4.2 Piping, Instruments, and heat tracing shall be dry and free of loose scale and foreign matter before insulation application. 4.3 Insulation and electric tracing shall be kept dry and shall be protected from the weather until the final weatherproofing or fireproofing covering has been Installed. 4.4 All heat-traced lines and instruments shall be Insulated. . INSULATION , 4.5 Lines and Instruments specified to be insulated shall be insulated individually and all components of the lines shall be insulated completely with the following exceptions: a. Only valves, flanges, and flanged fittings that are in steam service, are heat traced, or that are specified to be fireproofed shall be Insulated. b. Wheh specified for personnel protection only. Insulation shall be Installed to a height of 7 feet above grade or platforms. c. Rotation joints, steam traps, corrugated pipe expansion joints, and similar mechanical equipment shall not be insulated. ' d. Insulation shall be notched 5 inches on each side of obstructions that pro trude into insulation, such as pipe supports adjacent to pipe flanges, etc. e. Steam traps, bypass block valve, and piping downstream of both shall not be Insulated. ' 4.6-' s , Mineral fiber insulation shall be used for design tenperatures below 451*F, calcium silicate shall be used for design temperatures of 451*F and above, and insulation cement shall be used for all design temperatures with the following additions and exceptions: . a. Use special insulation for stainless steel tubing and for piping and instru ments where special insulation to prevent stress corrosion cracking of stainless steel is specified. Insulation cement shall not be used on these items. Use blanket Insulation to point-up cracks and to Insulate Instruments that cannot be Insulated with pipe covering. b. Insulation cement shall only be used when special insulation is not specified and only to insulate l-l/2-1nch and smaller valves, connections, and fittings or point-up cracks. The thickness shall be' 1-1/2 times the pipe insulation thickness specified. 4.7 Insulation for tees and valves shall be fabricated from pipe insulation (all joints glued) except where Insulation cement is allowed herein. 4.8 Insulation shall be installed In two layers of equal thickness if the insulation design temperature is above 600*F. ' 4.9 Insulation joints shall be butted together tightly and the joints of multilayer construction shall be staggered. 4.10 The insulation shall be secured with wires spaced on centers not to exceed 9 Inches for pipe and not less than three wires each for each fitting, flange, or valve. 26. 00213,) 18-0000775 439 Fun n i m-t  BTES 14-1-2.SC BAYTOWN ENGINEERING STANDARD 4.11 Pips Insulation shall be stopped at flanges and the ends shall be tapered so flange bolts can be removed without damaging Insulation or covering. 4.12 Cl amp-on-type Insulation supports shall be provided on existing piping according to the following: a. hear the base of vertical lines when the Insulation will extend more than 12 feet vertically. b. Above flanges when the Insulation will extend more than 6 feet vertically above the flange. c. Space the supports on not more than 21 feet 1-1/2-inch centers. d. Locate supports above flanges so the flange bolts can be removed. 4.13 When the Insulation design temperature Is above 400*F, Insulation expansion joints shall be Installed below Insulation supports or where effective for expansion. WEATHERPROOFING 4.14 Aluminum jacket shall be Installed on all insulation except fittings smaller than 2 Inches NPS, all Insulated valves, flanges, flanged fittings, and items Insulated with Insulation cement. For these exceptions weatherproofing shall be mastic reinforced with glass cloth. _ 4.15 Weatherproofing covering shall be Installed over Insulation so as to shed water, lapping all weatherproofing joints a minimum of 3 inches. Lock-type joints yiat are self-sealing do not require a 3-Inch lap. 4.16 Jacket, except self-supporting lock jacket, shall be secured on centers not to exceed 6 Inches according to the following: a. Use alumlnun bands on horizontal lines. b. Use aluminum screws on the longitudinal joint of vertical lines and support / each section with a minimum of three "S" clips per Figure 2. In addition. Install one aluminum band at the middle of each section and secure to jacket with at least two aluminum screws. c. Use no less than three aluminum screws per joint on weld ell jacket. 4.17 Junctions of end pieces to pipe for Insulation design temperatures below 401 *F and all projections through the jacket shall be sealed with a 1/4-inch fillet of sealer/flashing mastic. 4.18 Weatherproofing mastic shall be 3/32-1nch minimum dry film thickness with glass cloth completely enbedded in the mastic. APPLICATION FOR FIREPROOFING 18-0000776 5.1 --* Application for fireproofing shall be per the section "Application for Insulation" with the following exceptions: . a. Install calcium silicate insulation and insulation cement only; not mineral fiber insulation. b. Insulation, used to fireproof piping composed of low melting metals such as aluminum, shall be installed in two layers regardless of the insulation design temperature. c. Install fireproofing jackets and mastics in place of weatherproofing. d. Use only stainless steel bands, clips, screws, and wire, not aluminum. 27. 00219b 430 EKO 01238 tUco} BAYTOWN ENGINEERING STANDARD Qky BTES 14-1-2.5C Page 5 FIGURE 1 - TYPICAL INSULATION EXPANSION JOINT TO PIT WEATHER* PROOFING JACKET 13-0000777 FIGURE 2 - STAINLESS STEEL 'S' CLIP Z8` G02101 491 <&3> BAYTOWN ENGINEERING ftHMJ standard wMvtauMMae ma+m* t*a*t REVISION 1 MARCH 1972 INSULATION MATERIALS PURCHASE DESCRIPTIONS ITES 14-2-50. IB Page 1 of 9 SCOPE 1.1 This standard contains purchase descriptions of Insulation naterlals. The term 'KIT" used herein Is the abbreviation for nominal Insulation thickness. The contents of this standard are arranged as follows: Item Code Numbers ACCESSORIES Bands......................................... Breather Springs................. Fiber Cloth............................ Finger Straps.................. Joint Sealer.......................... Rivets............................ .. Screws............................ .. Seals......................................... Welding Pins.......................... Welding Studs and Caps... Wire........................................... Wire Mesh................................. A2 - A3 AS A6 - A7 A9 A12 - A13 A15 A18 - A19 A23 - A24 A2S AZ7 - A28 A30 - A3I A37 Page 2 2 2 2 2 2 2 2 3 3 3 3 INSULATION j*-- Calcium Silicate.................. II - 14 3,4 Dlatomaceous Earth............. IZ1 - 125 4 J' . Mineral Fiber........................ 131 - 140 '5 Polyurethane.......................... 151 - 157 5,6 INSULATION CEMENT ' Mineral Fiber........................ 1103 JACKETS AND MASTICS . Alunlnum Jackets............ .. J1 - J6 Felt Jackets.......................... Jll Steel Jackets........................ J13 - J16 Mastics..................................... J17 - J20 7 7,8 8. 8,9 9 l.a-0000778 29. 002133 492 BTES 14-2-50.IB Paqe 2 BAYTOWN ENGINEERING STANDARD PURCHASE DESCRIPTIONS 2.1 Accessories Code Nos. Description A2 Bands, specify size (thickness x width x length), 18-8 Cr-NI stainless steel, AISI Type 302 or Type 304, annealed temper. A3 Bands, specify size (thickness x width x length), aluminum alloy Type 3003 or Type 5005, annealed temper. AS 8reather springs, to fit (specify size of band) 18-8 Cr-NI stainless steel, AISI Type 302 or Type 304, 5-inch minimum expansion with 125 pounds pull, 981 minimum return after . relaxation. AS Fiber cloth, specify number of square feet, specify width, open weave (10 x 10) mesh, asphalt-coated glass fiber. A7 Glass fiber cloth, specify number of square feet, specify roll width, open weave, 10 x 10 mesh, white starch sized, 0.258 ounce per square foot, equal to Perma-Glass-Hesh Corporation's No. 207. /9 Finger straps, 0.020-Inch minimum thickness x 3/4-1nch minimum width x specify length, with approximately 1/4-lnch-wlde x l-l/2-1nch-long fingers spaced on 9-1nch centers, 18-8 Cr-NI stainless steel, AISI Type 302 or Type 304, annealed temper. A12 Joint sealer, specify container size, permanently soft mastic sealer (Benjamin Foster Company 30-45). A13 Rubber cement. Insulation bonding adhesive, equal to Benjamin Foster 81-81, In 5-gallon or 1-gallon containers (specify which). AI5 Rivets, pop, specify size (diameter x length), aluminum. A18 Screws, self-tapping, slotted pan head, sheet metal, specify size (number x length), aluminum. . A19 Screws, self-tapping., sheet metal, specify size (number x length), slotted pan-head type, AISI Type 302 or Type 304 stainless steel. A23 Seals, banding, specify band size (thickness x width), specify type (closed, regular wing, or short wing), 18-8 Cr-NI stain less steel, AISI Type 302 or Type 304. A24 Seals, banding, specify band size (thickness x width), specify type (closed, regular wing, or short wing), aluminum alloy Type 3003 or Type 5005. 13-0000773 30. 00219.) BAYTOWN ENGINEERING STANDARD BTES 14-2-50.IB Page 3 PURCHASE DESCRIPTIONS (CONT'D) Code Not. Description A26 Rectangular welding pin, 1/4 inch x 1-1/4 inches, specify length, pierced, specify hole diameter, carbon steel equal to KSM Division of Quark Industries' Type AH. A27 Welding stud, specify size, 18-8 Cr-Ki stainless steel, AISI Type 302 or Type 304. (Nelson Stud Welding's S2F Setlok Stud or KSM's Multiple Groove Korr Pin No. FB-5) A28 Welding stud cap, aluminum, to fit Nelson Stud Welding's S2F Setlok Stud or KSM's Multiple Groove Korr Pin No. FB-5 with a 3/16-lnch-diameter x 3/8-inch-long extension. A30 Wire, specify size (Bwg x length), 18-8 Cr-Nl stainless steel, AISI Type 302 or Type 304, annealed temper. A31 Wire, specify size (Bwg x length), aluninusi, annealed temper. A37 Wire mesh, specify width, specify square feet, 0.028-inchdiameter wire, 1-inch-hexagonal openings, Honel, poultry netting. 2.2 Insulation Code Nos. Description n Block insulation, calcium silicate. ASTH C 533. except contains no asbestos, specify number of square feet, specify NIT, specify block width, 36 Inches long, flat blocks or curved blocks, specify which; if curved, specify diameter to fit. 12 Fittlnq insulation, calciun silicate, ASTM C 533, except contains no .asbestos, specify NPS, specify NlT, specify fitting (if ell, specify long or short radius and 45 or 90 degree), specify flange, weld or screw ends; If flange ends, specify rating. If for weld ells and tees, specify with or without 2-inch tangent. If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to pipe fitting dimensions plus Insulation thickness with a plus 3/16-inch tolerance. 13-0000780 31 ` C0220U I 494 EH001?4? BTES 14-2-50. IB Pigc 4 BAYTOWN ENGINEERING STANDARD PURCHASE DESCRIPTIONS (CONT'D) Code Nos. Description . ' 13 --i Flanoe Insulation, calcium silicate, ASTM C S33. exceot contains no asbestos, specify NPS, specify NIT, specify flange type and rating. If fabricated, pieces shall be fitted without gaps and shall be permanently Joined, dimensions shall be equal to flange dimensions plus Insulation thickness with a plus'3/16-1nch tolerance. H 14 Ploe Insulation, calcium silicate. ASTM C 533. except contains no asbestos, specify number of feet, specify NPS, specify NIT; If for lines with parallel tracers, specify location and size of grooving, when required. 121 Block Insulation, dlatomaceous earth, ASTM C 517, except contains no' asbestos, specify Class 1 or Class 2, specify number of square feet, specify NIT, specify class, specify block width, 36 Inches long, specify flat blocks or curved blocks; If curved blocks, specify diameter to fit. 122 Fitting Insulation, dlatomaceous earth, ASTM C 517, except contains no asbestos, specify Class 1 or Class 2, specify NIT, specify class, specify fitting (If ell, specify long or short radius and 45 or 90 degree), specify flange, weld, or screw ends; If flange end, specify rating; If for weld ells and tees, specify with or without 2-inch tangent. If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to pipe fitting dimensions plus Insul ation thickness with a plus 3/16-Inch tolerance. * 123 Flange .Insulation, dlatomaceous earth, ASTM C 517, except contains no asbestos, specify Class 1 or Class 2, specify NPS, specify NIT. specify class, specify flange type and rating. If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to flange dimensions plus insulation thickness with a plus 3/16-lnch tolerance. 124 Pipe Insulation, dlatomaceous earth, ASTH C 517. except contains no asbestos, specify Class 1 or Class 2, less jacket, specify number of feet, specify NPS, specify NIT, specify class; If for lines with parallel tracers, specify location and size of grooving. H 125 Valve Insulation, dlatomaceous earth. ASTM C 517, except contains no asbestos, specify Class 1 or Class 2, specify NPS, specify NIT, specify class, specify valve description (manufacturer name, valve Identification number, type ends, and rating). Insulate to valve bonnet; If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to valve dimensions plus insulation thickness with a plus 3/16-inch tolerance. 32. j_a_0000T81 C02201 195 FMC101?4 ^ BAYTOWN ENGINEERING STANDARD BTES 14-2-SO.IB Page 5 PURCHASE DESCRIPTIONS (CONT'O) Code Nos. Description 131 Blanket Insulation, mineral fiber, specify number of sauare feet, specify NIT, specify size (width x length}, without metal fabric backing, -250 to 1500*F continuous temperature limit of fiber, high permanent resilience. 132 Block Insulation, mineral fiber. ASTM C 612. soeclfy class, specify number of square feet, specify NIT, specify block size, specify flat blocks or curved blocks. If curved blocks, specify diameter to fit. 134 Board Insulation, mineral fiber. ASTM C 612. specify Class 3 with a minimum density of B lbs/ft3, a minimum continuous service temperature of 700*F, and a minimum compressive strength of 200 psf at 101 deflection, specify number of square feet, specify NIT, specify size (width x length), nonpunklng binder. 136 Flttlno Insulation, mineral fiber. ASTH C 547. 450*F minimum service temperature and 7 pcf minimum density, specify NP5; specify NIT, specify fitting (if ell, specify long or shorT . radius and 45 or 90 degree) specify flange, weld or screw ends; If flange ends, specify rating, nonpunklng binder; If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to pipe fitting dimensions plus Insulation thicknesses with a plus 3/16-1nch tolerance. 138 Flanoe Insulation, mineral fiber, ASTM C 547. 450*F minimum service temperature and 7 pcf minimum density, specify NPS, specify NIT, specify flange type and rating, nonpunklng , binder; If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to flange dimensions plus Insulation thicknesses with a plus 3/16-1nch tolerance. 140 Pipe insulation, mineral fiber. A5TH C 547, 450*F minimum service temperature and 7 pcf minimum density, specify number of feet, specify NPS, specify NIT; if for lines with parallel tracers, specify location and size of grooving, nonpunklng binder. ' 151 Block Insulation, rlqld polyurethane foam, ASTM C 591 Type II. Grade 2 (self-extinguishingj, -2So to +230*F continuous service temperature limits, specify number of square feet, specify NIT, specify block width, 36 Inches long, flat blocks. 33. C0220.2 is-0000782 49a F MO 01244 arcs 14-2-50.18 Page 6 BAYTOWN ENGINEERING STANDARD PURCHASE DESCRIPTIONS (CONTO) Code Nos. Description . 153 Fittina insulation, riqid polyurethane foam, A5TM C 591 Tyne II. Grade 2 (self-extinguishing), -250 to +230*F continuous service temperature limits, specify KPS, specify NIT, specify fitting (if ell, specify long or short radius and 45 or 90 degree), specify flange, weld, or screw ends (if flange end, specify rating); If fabricated, all pieces shall be fitted without gaps and shall be.permanently Joined, dimensions shall be equal to pipe fitting dimensions plus insulation thickness with a plus 3/16-lnch tolerance. ' 154 Flanoe insulation, rioid polyurethane foam, ASTM C 591 Type II, Grade 2 (self-extinguishing), -250 to' +Z30#F continuous service temperature limits, specify NPS, specify NIT, specify flange type and rating; If fabricated, pieces shall be fitted without gaps and shall be permanently joined, dimensions shall be equal to flange dimensions plus insulation thickness with a plus 3/16-inch tolerance. 155 Pipe insulation, riqid polyurethane foam, ASTM C 591 Type II, Grade 2 (self-extinguishing), -256 to +23Q*F continuous service temperature limits, sectional, specify nunber of feet, specify NPS, specify NIT. 156 /* Valve Insulation, riqid polyurethane foam, ASTM C 591 Type II. Grade 2 (self-extinguishing), -250 to +230*F continuous service temperature limits, specify NPS, specify NIT, specify valve description (manufacturer's name, valve Identification number, type ends, rating); if fabricated, pieces shall be fitted without gaps and shall be permanently Joined, dimensions shall be equal to valve dimensions plus insulation thickness with a plus 3/16-1nch tolerance. 157 Pipe Insulation, load-bearinq riqid polyurethane, ASTM C 591 Grade 2 (self-extinguishing), sectional, -250 to +230*F continuous service temperature limits, 250 psi minimum yield strength In compression, 180 psi minimum compressive strength at 5X deflection, specify number of linear feet, specify NPS, specify NIT, 3 perm-inches maximum water vapor transmission rate. Thermal conductivity per ASTH C 177 and C 420, aged at 140*F for 150 days expressed in 8tu per (hour) (square foot) (Fahrenheit degree per inch) shall not exceed 0.25 at 100*F mean temperature and 0.22 at -1QQ*F mean temperature. . 002203 18-0000783 34. I 497 EM001245 PURCHASE DESCRIPTIONS (CONT'O) 2.3 Insulation Cement Code Nos. Description 1103 Insulation cement, mineral fiber. ASTM C 195. contalnlna no asbestos, specify number of sacks. 2.4 Jackets and Mastics Code Nos. Description J1 Jacket. Insulated flttlnq, smooth aluminum alloy Type 3003-H14 or Type 50Q5-H14, 0,016-incn minimum metal thickness, 2-1nch minimum extension on both ends of weld ells, joints designed to effectively and permanently shed water, free of burrs and sharp edges, baked-on colored converted epoxy on inside and outside, specify the follow ing: Type of fitting (If ell, specify long or short radius and degree of direction change), type ends (if flanged, give rating), HPS, HIT, and color of outside coating. J2 Jacket, aluminum alloy Type 3003-H14 or Type 5Q05-H14, for " Insulated (Tange. specify NPS. specify NIT, specify fiance type and rating, 0.012-Inch minimum thickness, smooth surface, tinted, converted epoxy coating on inside, outside coating, baked-on, converted epoxy (specify color), all joints and seams shall be joined to effectively and permanently shed water, 1-inch minimum overlap at longitudinal joints, free of all burrs and sharp edges. J3 Jacket, aluminum alloy Type 3003-H14 or Type 5005-H14, for Insulated valve, specify HPS, specify NIT, specify valve description (manufacturer name, valve identification number, type ends and rating), specify If valve is insulated to bonnet or to packing gland, O.Q12-inch minimum thickness, smooth surface, tinted, converted epoxy coating on inside, outside coat ing, baked-on, converted epoxy (specify color) all joints and seams shall be Joined to effectively and permanently shed water, 1-inch minimum overlap at longitudinal joints, free of all burrs and sharp edges. J4 Jacket, prefabricated head, aluminum alloy Type 3003-H14 or Type 5005-H14, gore type with overlapping beaded joints and screws on centers not to exceed 6 inches, O.OZO-inch minimum metal thick ness, smooth surface, 6-inch minimum flange length, free of burrs and sharp edges; colored polyethylene, colored converted epoxy, or 50-pound polyethylene-kraft paper moisture barrier 1005 perma nently bonded to inside; baked-on colored converted epoxy coating on outside, specify the description of head, insulation thickness and color of outside coating. - 35. 18-0000784 002204 498 .4 . .*x. BAYTOWN ENGINEERING STANDARD 8TES 14-2-50.IB Page 9 PURCHASE DESCRIPTIONS (CONT'O) Code' Nos. Description <316 Jacket. Insulated fitting, smooth electrogalvanlaed steel. 0.010-Inch minimum metal thickness, Z-Inch minimum extension on both ends of weld ells, joints designed to effectively and permanently shed water, free of burrs and sharp edges, vapor barrier continuously bonded to inside surface, baked vinyl enamel or vinyl organosol chemical and weather-resistant outside coating, specify the following: Type of fitting (If ell, specify long or short radius and degree of direc tion change), type ends (If flanged, give rating), NPS, NIT, and color of outside coating. 017 Mastic, weatherprooflnq for high-temperature Insulation, containing no asbestos, breathing type, vinyl acrylic or polyvinyl acetate, nonflamnables In noncured state, flame spread less than 20 when cured, not less than 180*F constant service temperature limit, specify color and specify trowel, spray or brush grade. J19 Mastic, flreprooflnq. breathlnq type, containing no asbestos, nonflammable with a flame spread Index of four or less, specify color. -_ (Vlmasco WC-1FR) J20 Mastic, sealer/flashlnq for high-temperature Insulation, containing no asbestos, nonshrinking, permanently flexible, less than one perm water vapor permeable for T/16-Inch thickness, not less than 400*F constant service temperature limit, specify color. (Childers' CM-Jolnt CP-70) L Vc. 37. 1S-00007S6 G0220tJ - i 500 FMOOI ?/. p