Document B5yJDRw0vb3VjLrRqj8EqrMxJ

DN3 I' .( ISSUEO FOR D IN-HOUSE REVIEW CLIENT APPROVAL QUOTATION I I PURCHASE CONSTRUCTION SPECIFICATION TITLE SHEET r- C ------------ --------- --------------- THIS SHEET IS A RECORD OF EACH ISSUE OR REVISION TO THE SUBJECT SPECIFICATION. EACH TIME THE SPECIFICATION IS CHANGED ONLY THE NEW OR REVISED SHEETS NEED TO BE ISSUED. THE EXACT SHEETS CHANGED AND THE NATURE OF THE CHANGE SHOULD BE NOTED UNDER REMARKS. THESE REMARKS ARE NOT A PART OF THE SPECIFICATION. THE REVISED SHEETS BECOME PART OF THE ORIGINAL SPECIFICATION AND SHALL BE COMPLIED WITH IN THEIR ENTIRETY. E ENTIRE SPECIFICATION ATTACHED REVISED SHEETS ONLY ATTACHED APPROVALS t RECEIVED SEP 5 1979 F.J.CACUslIZZO. PROJECT. CLIENT. LOCATION Sulfur Recovery Tail Gas Plant Chevron U.S.A. Inc. El Paso, Texas SPECIFICATION 1 * THE RALPH M. PARSONS COMPANY SPECIFICATION TITLE Hot Insulation SHEET A OF 17 JOB NUMBER S878-1 ~O CHEV BB 0000648 SPECIFICATION NUMBER SPC-7 2-MA-4700-1 REV. 0 E N G G E -3 2.11 2.12 All insulation shall be protected from moisture and weather before and during application. If applied insulation should get wet before it is jacketed, it shall be thoroughly dired by heating the line or other suitable means before it is sealed by weatherproofing. Piping and equipment insulation shall be applied with all joints fitted to eliminate voids. 2.13 Vessel insulation support rings will be furnished by the vessel fabricator to the extent shown on the'vessel drawings. 2.14 Materials specified herein are set forth as standard acceptable materials for their group or trade classification. It is not intended to exclude any comparable material. 2.15 If insulation is called for on piping, any additional items relat ing to the lines (such as vents, drains, bypasses, etc.) that com prise a system shall be considered a part of the insulation work even though they are not identified by an individual line number. Vessel trim shall receive the same consideration, i.e., a level gage requiring insulation, the vent and drain nipples, swages, valves, etc., shall be insulated. 2.16 Stainless steel piping and equipment shall be insulated with low chloride materials meeting the requirements of Military Specifica tion MIL-I-24244 for special corrosion and chloride requirements. 2.17 Aluminum jacketing shall be cut back in such a manner .as to clear sufficiently all galvanized surfaces to eliminate any possibility for galvanic corrosion. 2.18 Equipment nameplates shall remain visible after the insulation application is completed. 2.19 Any welding required in connection with attachments shall conform to the applicable Piping and Vessel Codes. Prior approval shallbe required from Parsons Resident Construction Manager. 2.20 All equipment stiffener rings shall be insulated and weatherproofed with specified material. 2.21 Unless specified otherwise, the following items are not to be insulated: miscellaneous drains to sewers, steam traps, unions, restriction orifices, and safety valve tail pipes. 2.22 All insulation materials shall be "asbestos free." - THE RAtPH M PARSONS COMPANY SHEET 2 OF 17 JOB NUMBER 5878-1 CHEV BB 0000650 DOCUMENT NO. SPC-72-MA-4700-1 flEV. io 3.5 Insulation Weatherproofing - Heads Unprotected 55 Metal Protected (Inside Skirts) l~I Mastic f~) Mastic/Glasfab/Mastic 0 Wire Mesh 5 Mastic El Finishing Cement, Glasfab Mastic 1 1 Finishing Cement 3.6' Bottom Heads Inside Skirts Q Insulate , if specified 0 Do Not Insulate 3.7 Manways H Insulate jjj Do Not Insulate 0 Removable Covers 0 Permanent Covers 3'8 Exchanger. Channels Q Insulate 1 1 Over 400F Do Not Insulate 3.9 Exchanger Vessel Nozzles 0 When specified in Insulation Equipment List 0 Insulate \ 0 Do Not Insulate 3.10 Pumps 0 Over 400F When Connected Pipe Is Insulated \ 0 Insulate 0 Metal 0 Removable Covers Do Not Insulate 0 Glasfab Mastic 0 Permanent Covers 3.11 Flanges on Pumps & Turbines (~1 Insulate 0 Metal 0 Removable Covers 83 Do Not Insulate 0 Glasfab $ Mastic 0 Permanent Covers 3.12 Insulation Bevels Mastic Finish Metal MF the Ralph m. parsons company SHEET 4 OF 17 JOB NUMBER 5S78-1 DOCUMENT NO. SPC-72-MA-4700-1 REV. 0 C '39'O N B (2) Metal Finish on Horizontal Equipment Horizontal vessel and equipment jacketing shall be installed in the same manner as specified for corrugated metal finish except that "S" clips shall not be used. 4.4 Insulation Weatherproofing - Heads and Irregular Surfaces (1) All Metal - Heads Orange peel sections shall be applied to heads. Sections shall overlap to shed water and be secured with sheet metal screws on 4 inch centers. Orange peel sections shall overj lap shell jacket approximately 4 inches on vertical vessels and shall be secured with a 3/4 inch x 0.020 inch Type 304 stainless steel band having an expansion spring. Each band shall have two band loops made of the same material to keep the band from slipping down. Loops shall be located 180 apart and secured with two sheet metal screws each. All laps shall be sealed. Horizontal vessel metal covers for heads shall be overlapped by the metal sidewall jacket. (2) Mastic - Heads and Irregular Surfaces Mastic and reinforcement shall be applied in the following manner: o Install galvanized wire mesh over the insulation and apply finishing cement 1/4 inch thick. o Trowel on mastic to a thickness not to exceed 1/8 inch. o Embed Glasfab into mastic, and work to a smooth finish. Laps shall be a minimum of 3 inches. o When surface is dry, finish with an additional 1/8-inch thick coat of mastic. When wire mesh is used for re inforcement, it shall be installed over the block board and secured by wiring to insulation ties. All edges shall be laced together. A 1/4-inch wet coat of mastic shall be troweled over, and well into the wire mesh. (3) When mastic is specified for top vertical heads, a metal flashing shall be used. Flashing shall start 2 inches under the mastic and extend 3 inches down and over the sidewall jacket. (4) The mastic head weatherproofing shall feather edge out on the sidewall insulation on horizontal equipment, 3-inch minimum, and be overlapped by the sidewall metal jacket. THE RALPH M PARSONS COMPANY SHEET '6 OF 17 JOB NUMBER 5878-1 CHEV BB 0000654 DOCUMENT NO. SPC-72-MA-4700-1 REV. 0 5.0 INSULATION FOR HOT PIPING - CHECKLIST 5.1 Insulation Material - Pipe Covering ["I Fiberglass @ Calcium Silicate. 5.2 Insulation Securement - Pipe Covering ;Bands(Only for outer layer of insulation) .Material Size f~l Galvanized H 1/2 x .015 B Stainless Steel 1/2 x .020 Spacing 9" on center 12" on center f~l Aluminum 3/4 x .020 18" on center Wire (Only for inner layer of double layer insulation) Material Size Spacing Galvanized `O 18 Ga. 6" on center I i Stainless Steel 16 Ga. for pipe ||| 9" on center O.D. 12" and under f~i Black ^} 14 Ga. for pipe Q 12" on center O.D. over 12" 5.3 Insulation - Ells, Tees, Caps, Reducers, etc. 1-1/2" Smaller Prefabricated 2" Larger ____ . Prefabricated 83 Cement' Cement 5.4 Insulation - Flanges, Bonnet Flanges and Flanged Valves CSee para. 7.1.3(2) for alternate insulation method) Steam Services Process B Yes Q Above Yes Above Jacketed, Electric Stm. Traced 2 Yes No m All | No All No Insulation Weld 5 Screwed Valves Bonnets ' (_See para. 7Ti\3(^J tor" alternate insulation method) ^ _-- EH Yes Q Above F Q Yes Above ___________ F S3 Yes No f| All E No All No 5.5 Steam Tracer Loops Outside Insulation Material H Yes Moldable Felt No THE RALPH M PARSON'S COMPANY SHEET 8 OF 17 J00 NUMBER 5878-1 CHEV BB 0000656 " DOCUMENT NO. SPC-72-MA-4700-1 REV. o- w 6.0 HOT PIPING APPLICATION METHODS 6.1 Straight Pipe Insulation Insulation shall be applied us:-2 staggered joint construction, and shall be secured in place -l^h specified securements on specified centers. Where wire is used, it shall be twisted tightly and ends embedded into pipe insulation. Factory applied jacketing integral with insulation may be used in sizes provided by the manufacturer. Where factory applied insulation integral with jacketing is provided, insulation securement shall be omitted. Pplykraft moisture barrier shall | be integral with both factory and field applied jacketing. 6.2 Straight Pipe Finish (Metal Finish) Where metal jacket finish is specified, metal shall be applied with circumferential and longitudinal seams lapped a minimum of 2 inches. Jacket shall be secured in place as specified. Longitudinal seams shall be placed on the bottom half of pipe below 45 position so as to shed water. If insulation jacket is penetrated by nozzles, clips, supports, etc., all penetrations shall be sealed with flashing compound to prevent entrance of moisture and water. On vertical pipe when band securement is specified, two "SM clips shall be used at circumferential laps of jacketing for piping 12 inches and under; for piping over 12 inches, install three "S" clips. 6.3 Fitting Insulation Including Valves, Flanges, etc. (1) Fittings 1-1/2 inches and smaller shall be insulated with an approved hydraulic setting insulating cement palmed on to a smooth finish equal in thickness to the adjacent pipe insulatipn. (2) Fittings larger than 1-1/2 inches shall be insulated with preformed, shop or field fabricated insulation covers, secured with a minimum of 3 tie wires (this method preferred). If field miters are used, they shall be secured with one tie wire for each miter and finished with a skim coat of specified cement. When other than metal weatherproofing is specified, all fittings shall be given a skim coat of insulating cement to form a smooth finish. HIP THE RALPH M PARSONS COMPANY SHEET 10 OF 17 JOB NUMBER 5878-1 CHEV BB 0000658 DOCUMENT NO. SPCr72-MA-4700-l REV. 0 ENG-QE-3 6.4 Metal Fitting Weatherproofing Factory-fabricated or field-fabricated fitting covers shall be installed over all fitting insulation. Covers shall be secured with specified screws at 3-inch centers on all circumferential laps and seams. Overlaps of gores shall be secured in place with specified screws at 3 inches on centers. On'horizontal lines the pipe jacketing shall overlap fitting covers. - On vertical lines the laps of fitting covers and pipe jacketing shall be installed to shed water. 1 Specified bands shall be installed over all laps of fitting covers in addition to specified screws. Where sizes for elbows are not available as a manufactured item, the metal ells shall be fabricated from gores using the same number of miters as the base insulation. Metal fitting covers shall match metal jacketing for straight pipe, when manufactured as a standard item. When metal fitting covers do not match metal jacketing for straight pipe, metal fitting covers shall be of standard manu facture, 0.020 inch thick. All laps and seams of fitting covers and gores shall be sealed for outdoor installations. 6.5 Metal Bevel The pipe covering shall be beveled to 45. Metal bevel shall be fabricated to form a 45 angle onto pipe and may be made in one or two pieces. Edges shall fit under the adjacent pipe covering jacket. Metal thickness shall be a minimum of 0.020 inches. Covers shall be secured with specified screws on 3 inch centers at all circumferential laps and seams. Banding shall not be omitted. 6.6 Pipe - Expansion and Insulation Supports Cl) Insulation extending more than 20 feet above a bottom elbow shall be supported by a pipe insulation support located directly above the elbow. Also a pipe insula tion support shall be installed above each pair of flanges or flanged valve in vertical pipe. When pipe extends more than IS feet above a pipe insulation sup port, additional supports shall be installed on approximate 15*-1" centers. RIP THE RALPH M PARSONS COMPANY SHEET ii OF 17 JOB NUMBER 5878-1 CHEV BB 0000659 DOCUMENT NO. SPC-72-MA-4700-1 REV. .0 e n g -c e -3 (2) Vertical and horizontal expansion shall be compensated for by leaving a 1-inch space below the insulation support for vertical pipe, and a 1-inch space for horizontal pipe operating above 600F on 15-foot centers. The 1-inch space for .expansion shall be packed with oilfree mineral wool or equal. (Not required when mineral wool or fiberglass pipe covering is specified.) 6.7 Clearance for Bolt Removal Pipe covering shall be stopped short of bolts a sufficient dis tance to allow bolt removal without damage to adjacent pipe insulation when flanges and -flanged valves are not insulated or j when removable covers are provided. 6.8 Steam Traced Piping (1) Tracer shields shall be installed prior to insulation of pipe. The shields shall be fabricated from 28 ga. sheet metal strip. The strip width shall be in accor dance with table shown in Fig. 1. The tracer and tracer shield' shall be pulled into contact with pipe where possible. Tracer shields are not required within 2 feet of a flange or fitting. (2) All steam traced piping shall be insulated, secured and finished in the same manner as straight pipe using either larger O.D. pipe covering of extended leg. (3) Where steam tracer tubing jumps over valves, flanges, etc., the tracer shall be spirally wrapped with speci fied material, lapped a minimum of 1/4 inch. Laps shall be secured with 16-gage dead soft-annealed galvanized wire applied spirally. Spacing of spiral shall not exceed 3/8 inch on centers. Weatherproof with a 3/8 inch wet thickness of mastic smoothly palmed on. (4) When heat transfer coment (Thermon) is specified, it shall be furnished and installed in accordance with manufacturer's recommendations by the insulation sub contractor. 6.9 - Electric Traced Piping Electric traced piping shall be insulated, secured and finished in the same manner as straight pipe using larger O.D. pipe covering when cable or channel is used, or nominal piping cover ing when tape is used. 6.10 Steam Jacketed Piping Steam jacketed piping shall be insulated in the same manner as specified for normal piping. CHEV BB 0000660 THE RALPH M PARSONS COMPANY SHEET 12 OF 17 JOB NUMBER 5878-1 OOCUMENT NO. SPC-72-MA-4700-1 REV. '0 6.11 Expansion Springs for Weatherproofing Provide expansion springs for piping 48 inches in diameter and over. Refer to Paragraph 5.5 for temperatures and number of springs. 6.12 Insulation of Flanges and Valves (1) Sheet Metal Covers Flange and valve insulation shall be jacketed with re movable, reusable sheet metal covers. The covers shall be multisectional for easy installation and removal, j The overlaps of the cover sections shall be 1 inch mini mum. The installed cover shall overlap the adjacent pipe insulation by the insulation thickness. The sheet metal cover shall leave the packing gland and other maintenance facilities accessible. The covers shall be installed by using quick release catches. Whenever possible the insulation material shall be permanently attached to the sheet metal cover sections so that the insulation can be reused. (2) Insulation Pads (Alternative) (a) The insulation shall consist of pads fabricated from glass or asbestos fabric filled with loose mineralwool. The thickness of the pads shall be* in accordance with the insulation thickness table. (b) All seams of the pads shall be sewn with asbestos or glass yarn reinforced with a stainless steel wire. The stitch width shall, be appropriate to prevent the loss of mineralwool during operation. The cushions shall be quilted to avoid sagging of the mineralwool and to main tain a uniform thickness. (c) The pads shall be manufactured in the required length and width to fit tightly to the surface to be insulated. All longitudinal installation seams shall be butt jointed and the joint shall be laced with galvanized wire using lacing hooks attached to the fabric. The hooks shall be spaced 4 inches on center. The cushions shall overlap the adjacent pipe insulation by the insulation thickness. (d) The fabric shall be water repellent or the cushion shall be painted with a heat resistant water, repellent paint. oveesiz.et> secT/ofjAi. Ftf>E CovRtAI<5 TRACER. SHt'ELb . . Z--l pip THE RALPH M PARSONS COMPANY TRA.CER SH/E123S tracer size sreiP *Jo'~.CopfX' 5/8* * 3V4 '/2 ' Sice! Pipe 3/U" Sler/PSpC 4 Yz 1" StrrfP.pe 5 FiG / MSOlAT/'qAJ OF STEAM T&ACeh P/PIKUS SHEET 13 OF 17 JOS NUMBER1' 5878-1 DOCUMENT NO. SPC-72-MA-4700-1 pa pa > W S REV. -0 lyyuuut ENG-C56-3 7.0 INSULATION AND SECUREMENT MATERIAL LIST 7.1 Piping Insulation Asbestos free molded calcium silicate sectional Pipe coverings (Item No. N14 - N18) Owens-Corning Fiberglas "Kaylo 10" Johns-Manville "Thermo 12" Pabco "Super Caltemp N.A.", or equal 7.2 Equipment Insulation (1) Mineralwool block insulation. Minimum size 24" x 36" j Eagle Picher' "Epitherm 1200 Block" Forty-Eight "N1200 Block", of equal (Item No. N42 - N46) 7.3 Insulating and Finishing Cement (1) Mineral fiber (asbestos free) insulating cement Johns-Manville No. 460, or equal (Item No. N102) (2) Hydraulic setting finishing cement. Johns-Manville No. 375, or equal (Item No. N103) 7.4 Reinforcements Hexagonal wire mesh. Mesh size 1"^ Wire .diameter 20 gage. Dip galvanized after weaving (Item NO. N130) 7.5 Weatherproofing Mastic 7.6 Wire Chevron Asphalt Co. "Laykold" (Item No. N109) Standard galvanized steel wire Thickness: 16 Gage Thickness: 14 Gage (Item No. N131) (Item No. N132) 7.7 Weather Jackets (1) Aluminum sheet metal. Alloy 3003, Hardness H14 with polykraft moisture barrier. Thickness: 0.016", corrugated (Item No. N126) Thickness: 0.016", flat or corrugated (Item No. N127) Suppliers: Childers, Premetco or Pabco PIP (2) Metal fitting covers for elbows, tees, end caps, terminus bevels, etc. shall be prefabricated (shop fabricated) from aluminum alloy specified under 8.7 (1) using epoxy vapor barrier, as supplied by Childers, or equal. osco_ SHEET 14 OF 17 JOB NUMBER 5878-1 CHEV BB 0000662 DOCUMENT NO. SPC-72-MA-4700-1 REV. -0 ENG-GE-3 7.8 Bands and Seals Bands and seals shall be stainless steel Type 302. The bands shall have following dimension: 3/4" wide by 0.020" thick [Item No. N134) 1/2" wide by 0.015" thick (Item No. N136) Wing type seals for 3/4" wide bands Wing type seals for 1/2" wide bands (Item No. N135) (Item No. N137) Supplier: Garrad,.or equal. 7.9, Expansion Springs Flat spring expansion unit. Material: stainless steel Supplier: Techalloy SR, or equal. (Item No. N141) 7.10 Floating Ring Shall be fabricated from 3/8" diameter carbon steel rod (Item No. 201) 7.11 Screws Pan head or hex head slotted self tapping sheet metal screws. Material: stainless steel. 7.12 "S" Clips "S" clips shall be made from 3/4" x 0.040 Type 304 stainless steel with 1-1/2" legs at each end. 7.13 Fabric for Pad Type Insulation The cloth shall be suitable for operating temperature up to 1,000F. The fabric shall have a weight of 2.2 lb/sq.yd. for asbestos cloth and 1.2 lb/sq.yd. for glass fabric. Alpha-Maritex Style #1925/g 383 or equal. 7.14 Lacing Hooks Fabricated from stainless steel. Supplier: H. A. Jones, Dayton, Ohio; Eastern Refrac., Belmont, Mass., or equal. 7.15 Yarn for Pad Fabrication Asbestos on glass sewing thread reinforced with stainless steel wire. THE RALPH M. PARSONS COMPANY SHEET 15 OF 17 JOB NUMBER 5878-1 CHEV BB 0000663 DOCUMENT NO. 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CN o ta E-- < Q fc-. c u o I-H E-- o ta -3 ta to z o HH 3 CO z I-H CO CN pH LO 3= IU o PS z ta CQ >CS ta ta ta os PS U /7f77 rru/r7 ncn roMPANY THE RALPH M. PARSONS COMPANY SHEET 16 OF 17 JOB NUMBER 5878-1 DOCUMENT NO. SPC-72-MA-4700-1 REV. 0 0000664 E ^ Q iGE-3