Document g2v0mdkw6QkqmR6zm5ke86xve

POSIES v/Ksasa INSULATION STANDARD FOR \ EOT PIPING and ECJIIPKENT DIVSSICM SPEC395Q-8QAI fAC5______________ I __________ c?v:::cn3 PAT7.ahniarv 7 1 ~ 1963 I. ` SCOPE THIS STANDARD ALSO APPLIES FOR CONTRA-' T 15-3930 A* \ . \ B. \ ' This standard defines the extent of insulation, and the me to rials and methods to be used for insulating piping and equipment (including steam traced or jacketed piping and equipment) in hot service. : The materials and'methods described herein are suitable for use in outdoor service in normal process plant atmospheres for operating temperatures from 100F to 1200r. The. project engineer shall specify other materials or methods for applications at higher temperatures or for cases where the atmosphere is corrosive to the materials specified. C. Cold service insulation is specified in Specification 3930-80A2. II. EXTENT OF INSULATION i A. The engineering flow sheets, line lists, vessel drawings, piping isometric drawings, and equipment insulation summary shall show the extent of insulationi based on the following criteria. . B. Insulation shall he supplied for: 1. Heat Conservation' (HC) when the normal operating temperature exceeds 250F and loss of heat is not desiredj 2. Process Stabilization (PS) when .the normal operating temperature is 250F or lower and loss of heat would adversely affect operat ion of the unit; 3. Personnel Protection (P?) when the following conditions exist s itoul taneous ly: a. The normal operating temperature exceeds 160F, * b. Insulation is not otherwise required' for heat conservation dr process stabilization. c. The equipment or piping is located within the confines of a space (operating area) bounded by distances of not more than seven (7) feet above or two (2) feet beyond access ways, ladders, and areas at platforms or ground level which may be used during the perform ance of the routine duties of operating (not maintenance only) personnel. NOTE: The intent of line lists, flow diagrams, or piping drawings, which specify insulation for personnel protection (PP), is to indicate eligibility for such insulation only. The actual extent of such insulation shall be detenx r.ed by the Fester wheeler Project Superintendent using t--.o above conditions as criteria. 4. Steam Traced (ST) and/ (including tracers vbe heating used to maint:-. r.-- J T.-t ; O k-- . . !y . ... (CT\ Op J piping or eouijme:.;., ated outride the ir.s-.iirtier.) or electric laity of pre -ess mater: els. PLAINTIFF'S itT |;fXHIBlTV3j FC37a pnecsss plants div!sjo?j INSULATION STANDARD FOR SPEC 3950-SQA1 II. EXTENT OF INSULATION C. Insulation shall NOT be applied to 1. Pumps, fans, compressors, blowers' or other rotating ecuipmer. unless otherwise noted. 2. Unless otherwise noted, valves and flanges in pi^ng system $ except (a) valves and flanges in steam service and (b) valves and flanges in steam-traced and/or steam jacketed service. 3. Vessel manway covers or heat exchanger channel covers. 4- Unless otherwise noted, nozzle neck and flanges of all flanged connections on equipment. (Exception: DC UlOl and DA LilCit) 5. Piping and equipment which becomes hot intermittently, such as relief valves; vents, steam-out and snuffing steam systems, flare and blowdown-systems and bypasses at control valves or exchangers, except as may be required for personnel protection or to prevent . freezing of process fluid. 6. Supports for piping or equipment. 7. Expansion joints, hinge joints, line filter access covers and mixers. 8. Internally insulated equipment. 9. Steam traps. III. MATERIALS A. Basic Insulation Materials 1. Pipe & Equipment - *21 Snzes Calcium Silicate (Foster ITheeler Standard for Pipe and Vessel Covering) with asbestos and inorganic binders per ASTK Specification 0344 and 0345, for operating temperatures from 40F to 1200F. This material shall be furnished in preformed half sections for pipe 24n dia. and smaller anc in block fora for larger size pips and equipment. For piping, the insulation material may be furnished.with a factory applied aluminum jacket with vapor barrier such as JohnsManville.nMetal-onn or Owens Corning "Xaylo-Clad.n For protection again;- ?r.leride corrosion cf stainless steel vessels in higher temperature service see Painting Specification 595G-S3A1. 2. Fining 24" diameter Fiber glass fr. preformed section! . a. 7-l/i lb. density -used for se 'ices up t 450F. b. Ip lo, _c.J.nsity to _sed for se> v:\js from 4> F to 1000?.- FOS7E2 yj^jj VJKi12^2 PCOCCSS PLANTS DIVISION INSULATION 'STANDARD FOR EOT PIPING AND EQUIPMENT SPEC Kzvaicn^ DATI 3950-80A1 3 0 Dec. 10, 1964 III. MATERIALS (contd) * A. Basic Insulation Materials (Cont*d)` 2. Piping 24" diameter frailer (Cont'd) Fiber glass shall not be used for services over 1000F. Insulation may be furnished with a factory applied aluminum jacket as previously described in Section III-A-1 3. Piping & Equipment Larger than 24" diameter . B. Felted mineral wool or fiber glass blankets with ln type 304 or 305 S.S. poultry netting on both sides for use with aluminum jacketing or with S.S. poultry netting on one side and 1/2n. x 1-1/4" S.S. metal lathe on the other side for use with mastic weather proofing. . 0 Fiber glass shall not be used for services over 1000F. Other Materials ' 1. Tie Wire' and Bands a) Galvanized, annealed iron wire, L4 or 16 BUG. b) 1/2" and 3/4" wide x 0.020" thick stainless steel bands and seals. 2. Cement and Mastic , a)- Insulating cement - used for insulating pipe fittings and valves smaller than 3" in size and, for filling cracks between formed'sections or blocks of insulation.' b) Mastic (Breathing end Fire Resistant type) - used for weather proofing of insulation not protected by aluminum jackets and = for weatherproofing of joints in aluminum jacketing. * 3. 'Glass Fabrn ic Used for reinforcement of mastic weatherproofing. 4. Aluminum Jackets a) Pipe and Equip::-:; Alloy 3003, or -.r:?!: 0.010" and 0.016" thick; smooth and corrugated (3/10 0. 1-1/4"), v;ifactory applied vapor barrier bonded or; side. FOSTER WHEELER PROCESS PLANTS DIVISION INSULATION STANDARD FOR HOT PIPING AND EQUIPMENT CNG STP ,Aat 80A1_____ 5 ItVKtON._______ 2____________ oa__Aug._l^_l?65_ III. MATERIALS (cont'd) B. Other Materials (cont*d) 3. Glass Fabric U* Aluminum Jackets Use Reinforcement of weatherproof ing mastic on valves and fittings 3" size and larger and on irregular surfaces at equipment. Also with mastic for weatherproofing of heads at vessels, exchangers and cylindrical equipment. Use a.-Alloy 3003, or equal, .016" - thick with 3/16" corrugation and with factory-applied moisture barrier bonded to one side. a. Jacketing for straight pipe, vessels, and equipment* On vertical equipment use lj" corrugations b Aluminum elbows, alloy 3003 or equal, .020" minimum thick ness, with 2" minimum straight section at each end for over lap with adjacent jacketing, and with factory applied moisture barrier bonded to inside surface. Elbows to be made in two halves with over lap at seams. b. Jacketing for pipe elbows, 10" size and smaller. These' jacket elbows may be sub stituted for mastic, or glass fabric and mastic, weather proofing when the substitution results in a lower installed cost. 5. Miscellaneous Materials > a. No. 7 x 3/8" self-tapping aluminum screws, or approved aluminum alloy rivets. Use a. Securing seams and Joints of aluminum jacketing* Exploding rivets may be used as an alternate. b. Steel Angle Rings and l/2" size square nuts. b. Insulation supports for sides and bottom head of vertical vessels, furnished by vessel fabricator in accordance with Foster Wheeler Engineering Standards. FOS712 ivKznin PROCESS PIANTS DIVISION INSULATION STANDARD POP. HOT PIPING AND EQUIPMENT SPEC 3950-80A1 ASE. fi cvu:crj_______ 0______ pate Dec. 10, 1964 V. 'APPLICATION ' A. General 1. Care shall be taken to insure that all vorking parts ci valves, `turbines, or other mechanical equipment are protected when insulation is applied. Until all insulation materials, such as cement or mastic have been removed from parts such as valve stems or governor linkages, the performance of insulation work shall, be considered incomplete. 2. Small turbines or. other equipment having short radius curved surfaces may be insulated with insulating cement as for small fittings and valves. 3. For large irregular surfaces such as large turbine casings, block or blanket insulation material may be vised as for heads ' of vessels. However, it is important that the materials used, methods of attachment, and extent of coverage have no effect ' upon the performance of equipment or the manufacturer's guarantee. For this reason it is preferred that insulation for large mechanical equipment be furnished complete with weather-proofing by the equip ment vendor except when it is uneconomical or impractical. 4. All projections and attachments to insulated pipe, vessels and other equipment such as pipe nozzles or branches, shall be insulated at least six inches beyond the pipe or equipment insulation surfaces, unless this requirement is exempt'- under Paragraph II, c. of this standard or is superseded by specific job requirements. 5. ..At operating temperatures above 600F differential expansion becomes. a significant factor. To prevent opening of the joints and excessive heat loss two layer staggered joint construction shall be used. 6. v Insulation shall be beveled end weatherproofed at all terminal .'..points where It is required to remove bolts, studs, nuts, etc. 7. For straight run portions of pipe and equipment, methods of applica tion of insulation and weatherproofing shall be as listed on Table "Bn and "as*.described in Sections'.V--BSC. The "complete description of the materials specified in Table B shall be as indicated in Section III of the specification. FOSTER WHEELER PROCESS PUNTS division IKSELATia; STA-'.'DAHD FOR HOT ?TPI?i!> A.M) 50UTPKZKT (NO STD. 8oai MrwCvIt_, __ 7 (VISION_____ 2 * Aug, 15. 1955 IV. IIISUIATIGH THXCIC3S3 (cont'd) B. Column WHC-1" (FW Standard) (cont*d) Insulation Material: Calcium Silicate Column "HC-2" Purpose: Heat Conservation. Cost of Heat: 5o/ per million BTU. Other Conditions: Same as for Column MHC-ln Column "HC-3W Purpose: Heat Conservation Cost of Heat: 75/ per million BTU ' Other Conditions: Same as for Column "HC-1R C. Factors Governing Thickness 1. Columns "HC-1", nHC-2w, and nHC-3w give the maximum operating temperatures which result in the most economical insulation thickness for the conditions. 2. Table "A" may be used for all insulation materials allowed by this standard. It is based on therinal conductivity values of 0.5* 0.6, and 0.7 at U00*F# 600*F and 800*F respectively. When the conductivity varies considerably adjustment of the required Insulation thickness may be necessary. .. 3. Standard thicknesses and temperature limits for insulation are based on the ambient conditions of still air at 70*F. Adjust ments to allow for wind velocity or surrounding air at any other temperature shall not be made except to satisfy process conditions. il. Table MAW shows temperature limits which have been calculated for the lowest total of the annual cost of heat loss and material amortization. The calculations are further based on a surface emissivity factor equal to 0.9. This factor is suitable for most dull finish surfaces such as mastic or dark paint. For aluminum jacketing the emissivity factor is expected to be. about 0.2 having the effect of slightly improving the operating tempera ture limit for the most economical thickness and raising the in sulation surface temperature. insulation for .Steam-Traced Equipment The thickness of insulation for steam-traced equipment shall be ' dictated by the operating temperature of the traced equipment or the tracer-whichever is higher. ' INSULATION STANDAHD FOR paocnss plants c:visio:] EOT PIPING- AND EQUIPMENT V. APPLICATION (Coat'd) SPEC TACi . cmnncr. vxa 3950-SOA1 8 0 Dec. 10, 196A B. Piping. Vessels & Cylindrical -Ecuionent, 2A" O.D. and Smaller Insulation 1. It shall be the insulation contractor's responsibility to insure that the outside surface of all piping is to be dry and reasonably clean prior to the application of the insula tion. 2. Apply half-sections of insulation material, starting, where possible, with a full length piece (usually 3 feet) and a half length piece so as to stagger the circumferential joints. 3. Secure the sections or segments of insulation to the pipe with loops of tie wire. Center to center spacing of the loops shall not exceed nine inches. The ends of the loops are to be twisted together, then imbedded into the surface of the insulation. 4. Butt the adjoining sections of insulation material firmly together and fill any crscks or voids with insulating cement. r 5. When preformed sections ere available for pipe elbows, these should be used and applied with tie wire as for pipe insula tion. .6 Fittings and valves, smeller than 3" size, may be insulated by applying insulating cement in layers to the total thickness of the adjacent pipe insulation. The thickness of the individual layers and time allowed for drying shall be in accordance with the manufacturer's recommendations. 7. Insulation for veld tees or velded branch connections shall be field fabricated from preformed pipe insulation, mitered at the tee joints, ,s.r.d secured in place with tie wire as for pipe insulation. 8. Flanges, valves (-.v.ere required) and fittings 3" size and larger shall be covered with field fabricated sections of pipe insulation or block of the same materiel-and thickness. The blocks end segments of insulation ere to be securely wired on the outside to hold the insulation against the metal surfaces. All voids and cracks shall then be filled with insulating cement leaving a smooth oujtside surface. FQ57Z3 VJKZ!LE2 PSCC035 PIA53I5 DIVISION INSULATION ST.4N0<?jD FOT? HOT PIPING AND EOTJI?>!ENT SPEC ?9^0-80A1 *A02 9 ssvmtc?j_ 0 DAT2 Dec. 10. 196', V. APPLICATION (Cont'd) B. Piping (2l;w O.D. and Smaller) (Cont'd)' Weatherproofing 1. Valves and Fittings a. Apply two (2) coats, each 1/3" minimum thickness (when dry) of- mastic, to cover insulation on all valves and fittings smaller than 3" nominal size. Extend the mastic coats beyond the valve or fitting onto adjacent pipe covering so that ' aluminum jacketing, when installed, will overlap the mastic at least 3". b. For valves and fittings, 3" size and larger, apply a smooth layer of glass fabric when the first coat of mastic is still wet. Finish with a second coat of mastic as for smaller valves and fittings. !* 2. Straight Pipe * a. Straight pipe shall have aluminum jacketing wrapped around with 2" minimum overlap on longitudinal seams. b. A 2" minimum overlap shall also be used on circumferential seams. c. All horizontal seams shall be installed with upper section overlapping the lower one to shed water. d. Vertical seams or circumferential seams on horizontal pipe shall be waterproof, or alternately shall be coated with mastic before assembly. e. Jacketing shall be held in place with metal bands and seals on 12" minimum centers, with a minimum of one band at each circumferential joint. f. Joints at pipe tees and branches should be fitted with aluminum flashing. g Where a fitting at the top of a vertical line is weatherproofed with mastic, une . .3 ..pal overlap "cnc cy .two (2) inches. Uc: . .-siring tape x.o effect an even ter..inat5on of the mastic. F057H3 V'r?-*' PSOC3JS PLANTS- DIVISION - . IS5ULATI0M--STAy2ARD FC?v ho? pipiro aSd Ecuipi-nr'iT 3950-tfOAl p,'c:_________3_.0___________ tsm:; ______ ______ B.-.T3 Dec. 10, 196a V. APPLICATION (Cont'd) C. Vessels and Pipe Larger than 2U" 0-L & Irregular Surfaces Insulation 1. For vessel heads and cylindrical .sections of equipment larger than 2hn O.D., curved blocks of calcium silicate shall be used as described below. Blanket insulation shall be used where pre formed insulation is not available. a. To secure block insulation to the heads of vertical vessels, attach tie wire c-n' 12" minimum spacing to the insulation ring angle which is .-.-elded at the tangent line by the vessel fab ricator. The other end of each tie wire may then be attached to loose ring made of 1/i*" steel rod which is centered at the vessel head to hold the insulation block* The blocks are to be cut-to fit firmly together and the wires tightened to held the insulation material against the surface of the vessel. b. For horizontal vessels without an attached ring angle at the tangent line, a ring angle may be tack welded near the.vessel - tangent line, or preferably use two loops of 3/3" diameter or larger steel wire rope around the vessel near each tangent, drawn tight,.and then securely clamped. Before tightening, radial bands or tie wires on 12" centers shall be shipped under the 3/8" diameter ropes. They shall be looped over- the* inner ropes and under the outer rope. The free end of tlie radial bands shall be tied to a loose centering ring and drawn up tight once the insulation is in place. . -. / j. c* For the bottom head under skirts of vertical -vessels, the * tie wire for supporting insulation block may be looped through nuts welded to the surface of the head by the vessel fabricator. d. For cylindrical, equipment sections the insulation blocks shall be held against the metal surface with 1/2" wide stain- ` less steel bands (or }/hn wide bands if the diameter is greater than 60") spaced on 9W centers. The blocks are to fcc firmly butted together. Vertical joints between blocks on vertical vessels and circumferential joints on horizontal vessels . shall be staggered. Use the floating ring and. radial pattern of tie wire as described in V c. 2. a. : e The use of a fib ~ive equal to Eagle-Pitcher "Insula-Stic" is .pare for temporary securer.1.::.c of block insulation .unti Vtj'jVI, t attachments are in place. On vessel heads an:- r sv.-fcces were an aek-vsive cannot . be used, the oh.. t- gauge veld ;; f Fill all voids rzr c `.cks with in lating cenent* F&ZT-ZI PHOCC3S PiATJTS DIV.3ION TKSirT.jTTrw STavnavn now HOT PTPTWr, tXT) Ff)TTTMFWT SPEC 3S1Q-60A1 fAG2_ 11 KVKtON_;___________ 0_______ __ DA13_____ Dee. 10, I961i V, APPLICATION (Cont'd) C. Vessels (2li" O.D. and Irregular) (Cont'd) Insulation (Contd) 2. For blanket insulation the method of application shall be as follows: a. Number 12 gauge, cr larger, weld pins shall be attached to the wall of steel equipment by means of a welding gun. b. Pins are normally spaced on 12" x 16" centers to suit a standard blanket width and length. c. Blankets are then impaled over the pins, pressed firmly against the metal surfaces, and the speed clips attached. d. Blanket edges shall be butted firmly together, then laced with tie wire at 6n intervals. e. Loose mineral wool shall be packed into all void spaces where the blanket has been cut to fit around equipment projections such as pipe nozzles. Weatherproofing 1. Irregular Surfaces and Vessel Heads a. For the upper surfaces of small inregular equipment such as small turbines, mastic weatherproofing reinforced with glass fabric shall be used. One coat of mastic shall be applied. The glass fabric shall be embedded in this coat and covered with a second coat of mastic to give a final total thickness of l/hn when dry. b. For heads of horizontal vessels, the bottom heads of vertical vessels when not protected by a skirt, and irregular bottom or vertical surfaces, poultry netting or wire lath shall be laced and fastened to the insulation support angles and wires. This netting of lath material shall provide support for a succeeding l/li" minimum thick coat of insulating cement and two (2) l/8n coats of mastic. Bottom heads of vertical vessels protected by a skirt do not require weatherproofing. c For blanket insulati . the stainless steel poultry netting or metal lath is an ini ;ral part of ohe blanket. Apply a l/li15 minimum thick coat c insulating cement and two (2) 1/8" thick coats of mastic. d. Smooth jacksting s'.-.t . used for proofing the top heads of vertical vessels, 7v. jacketing sr ,.il be i.eo directly over the b'i oclt or bl k- insulation. fCSTEa PRCCS35 P1AX7S DSViSSCfJ * f w r1* INSULATION STAWmpn FOP TTOT PTPTWO A XT) SPEC _ 3950-80A1 rAcr 12 CJVISIOM. 0 CAT* , , Dac. 10, 196k V. APPLICATION' (Cont'd) C. . Vessels (2liw O.D. & Irregular) (Cont'd) Weatherproofing (Cont'd) 2. Cylindrical Surfaces . a. On vertical- vessels the I'ower course of aluminum jacketing may be supported from the ring angle on the vessel, using stainless steel angle clips or rings designed to support the weight of the aluminum sheets. b.. Aluminum shall not contact the steel surfaces of the vessel. c. Longitudinal seams should overlap as noted in Table "1311. d. The aluminum sheets shall be held against the insulation by means of stainless steel bands drawn tight enough to prevent sagging but allowing for expansion of the vessel when hoczed to operating temperatures. A spacing as close as possible to 18" is required with a minimum of one band at each circumfer ential joint, plus one in the middle of each course. e. Succeeding courses of aluminum jacketing on vertical surfaces larger than 60" diameter shall be supported with suitable "Z" clips. f. Circumferential joints should overlap as noted in Table "B". g. All horizontal seams shall have the upper course overlapping the lower one to shed rain water. h. All longitudinal seams shall be joined together by means of sheet metal screws on 6" minimum centers. j. Mastic weatherproofing on horizontal vessel heads shall over lap the aluminum jacketing at least 6". . Ring angle on vertical vessels precludes this construction. k.' All equipment projections, such as pipe nozzles, shall have , the Jacketing sealed using aluminum flashing cut to fit the projection and extending under the jacket at least 3"* The seal between flash i;:g and jacket shall be made tight using sheet metal screws sac mastic. F037Ul \r'JJ IVK521E! pnocnss marts division % US5UL5TICH STANDARD KH HO? PIPING- AMD EQUIPMENT SPEC . fACS___ tUXtXQH OATS____ 39^0-SOAl ______ 13 _______ 0________ Bsc, 10. 1961i VX. APPROVED MATERIALS AND KAED?AC?r'i.':r5 DESCRIPTION 1. Calcium Silicate Pipe Covering or Block * TRADE NA2 Calcium Silicate Kaylo MANUFACTURER Philip Carey Co. (Xfg'd. by Keasbey & Kattison Co. ) Owens-Corning Fiberglass Corporation 2. Fiberglass 7% lb. Density; 10 lb. Density Thermobestos Fiberglas Johns-Manville Owens-Coming Fiberglass Corporation 3. Blanket Insulation ' * * . TYPES With Poultry Mesh, Both Faces With Metal Lath One F^ce & Poultry Mesh on Other * a. Mineral Wool Blanket - 200 200 102 201 201-A 112 Philip Carey Co. Eagle Pitcher Co. johns-Manville ; b. Fiberglass Blanket *HL Owens-Coming Fiberglass Corp. * * (Fiberglass material has 1,000 F. temperature limit.) ** 7%S lb. density'fiberglass has a temperature limitation of U50 g. 10 lb. density fiberglass has a temperature limitation of 1,000 F. It. Insulating Cement TRAPS HAMS No. 150 . Johns-Manville !> Mastic . Vi-Ac (Vinyl-Acrylic j Insul-Coustic Sealfas Mastic 31-1*9 (Aluminum Grey) Benjamin Foster Co. Note: Sealfas Mastic also in a variety of colors, consult for Benjamin Foster Cc r:y Cede Number. 6. Glass Fabric IIurt--A-Fab Benjamin Foster Co.- FOSTER WHEELER PROCESS PLANTS DIVISION .INSULATION STANDARD FOR HOT PIPING AND EQUIPMENT twGsro 80A1 r*ot15 kcvuiom_________ 2 PAW Aug* 15, 1%5 V, APPLICATION (contd) C. Vessels and Pipe Larger than 2U" O.D. & Irregular Surfaces (contd) Weatherproofing (contd) 6* Cylindrical Surfaces (Over 30" O.D.) a. On vertical vessels the lower course of aluminum . - Jacketing may be supported from the ring angle on the vessel, using stainless steel angle clips or rings designed to support the weight of the aluminum sheets* b. Aluminum shall not contact the steel surfaces of the vessel* c Longitudinal seams should overlap at least 2". d. The aluminum sheets shall be held against the insula tion by means of stainless steel bands drawn tight enough to prevent sagging but allowing for expansion of the vessel when heated to operating temperatures* A minimum of one band at each circumferential joint-, plus one in the middle of each course is required* e. Succeeding courses of aluminum jacketing on vertical surfaces shall be supported with suitable MZW clips. f Circumferential joints should overlap at least I*" on vertical vessels and at least 3" on hqrizontal vessels* g. All horizontal seams shall have the upper course over lapping the lower one to shed rain water. h All longitudinal seams shall be joined together by means of sheet metal screws on 6" minimum centers* j Mastic weatherproofing on horizontal vessel heads shall overlap the aluminum jacketing at least 6". Ring angle on vertical vessels precludes .this construction. k* All equipment projections, such as pipe nozzles, shall have the jacketing sealed using aluminum flashing cut to fit the projection and extending under the jacket at least 3". The seal between flashing and jacket shall be made tight using sheet metal screws and mastic.