Document 5Dn4mBQ61NYgwq4xNMxrdLpNV

SHELL OIL COMPANY ENGINEERING STANDARDS INSTALLATION STANDARD 5-3 INSULATION AUGUST 1959 ABS-061237 SHELL OIL COMPANY ENGINEERING STANDARDS INDEX INSTALLATION STANDARD GENERAL 5-3.1.1 5-3.1.2 5-3.1-3 5-3.1A Scope Contractors Proposals Guarantees and Inspections Requirements HOT SERVICE 5-3.2.1 General 5-3.2.2 Piping .1 Insulation .2 Final Coverings 5-3.2.3 Vessels .1 Insulation .2 Final Coverings 5-3.2.b Exchangers .1 Insulation .2 Final Coverings 5-3.2.5 Tanks .1 Insillation .2 Final Coverings 5-3.2.6 Pumps, Compressors and Turbines .1 Insulation .2 Final Coverings 5-3.3 COLD SERVICE 5-3.3.1 General 5-3-3.2 Piping .1 Insulation .2 Final Coverings INSTALLATION INSULATION STANDARD 5-3 AUGUST 1959 PAGE I OF 2 PAGE 1 1 1 1 2 2 3 .3 3 b b 5 6 '6 6 T 7 8 8 8 8 8 8 9 9 10 ABS-061238 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 2 OF 2 INDEX (CONTINUED) INSTALLATION STANDARD 5-3.3.3 Vessels .1 Insillation .2 Final Coverings 5-3-3A Exchangers .1 Insulation .2 Final Coverings 5-3.3.5 Pumps and Compressors .1 Insulation .2 Final Coverings DRAWINGS APPENDED DRAWING No. B-1235 - Hot Service - Details of Tank Insulation PAGE 11 11 11 12 12 13 13 13 13 ABS-061239 SHELL OIL COMPANY ENGINEERING STANDARDS 5-3.1 GENERAL I NSULATI ON INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE I OF 13 5-3.11 SCOPE This standard covers the installation of materials for the insulation of piping, vessels, exchangers, tanks, pumps, compressors, and turbines in hot and cold service. It is intended to establish a standard of quality for the installa tion of all insulating materials. 5-3.1.2 CONTRACTORS PROPOSALS . 1 Proposals covering materials and installation shall be based on Shell draw ings, data accompanying requests for quotations, thicknesses in accord with Engineering Standard 5-1> materials in accordance with Engineering Standard 5-2, and installation in accord with Engineering Standard 5-3- .2 Proposals shall include detailed information, for approval by Shell, of proposed insulation applications which are not covered by this Standard. 5-3.1.3 GUARANTEES AND INSPECTIONS . 1 All work shall be subject to inspection and approval by Shell. .2 Contractor shall guarantee that design, materials and installation are in accord with Insulation Standards 5-1, 5-2 and 5-3. . 3 Contractor shall guarantee that unsatisfactory materials or work which may be rejected by Shell shall be removed and replaced without charge to Shell. .4 Contractor shall guarantee that insulation which becomes defective as a result of faulty material or workmanship within one year from acceptance by Shell shall be replaced without charge to Shell. ` 5-3.1.4 REQUIREMENTS . 1 Contractor shall execute job in accord with the best practices for insula tion work with a minimum of waste and debris and work shall present a neat and workmanlike appearance. .2 Contractor shall observe Shell safety regulations for personnel and equip ment. .3 Contractor Bhall plan, schedule, and coordinate his work as required. .4 Contractor shall be responsible for the unloading, handling, protection and storage of materials, including construction of the required ware houses. ABS-061240 INSULATION INSTALLATION AUGUST 1959 PAGE 2 OF 13 STANDARD 5-3 SHELL 01L COMPANY ENGINEERING STANDARDS 5 Contractor shall protect materials from damage and weather during all stages of handling and application until the final covering is applied. 6 Contractor shall provide, install and remove required scaffolding. 7 Contractor shall clean surfaces to be insulated of oil, grease, loose scale, dirt, insulation debris, etc. Cold service surfaces shall be dry before applying materials. Hot service surfaces which shall operate below 220F or which shall not be in continuous operation and cold service surfaces shall be cleaned and prime coated with red lead, by others, before applica tion of insulation in accord with protective coating Standard 19. Wounds in the coatingB shall be repaired by others before application of insulation. *8 Contractor shall protect against and clean up splatter of insulating mate rials. 9 Contractor shall maintain a reasonably clean site; shall remove debris peri odically; and upon completion of job shall remove materials, equipment, and debris to satisfaction of Shell. . 10 Manufacturers' equipment and code name plates shall not be covered on hot service equipment. Insulation shall be cut on 45 angle from the nameplate edges and sealed off with a inch wet coat of finishing cement followed with a -g- inch wet coat of weather-proofing compound. Name plates on cold service equipment shall be installed outside of insulation. I Contractor shall apply materials in a manner to reduce shrinkage to a mini mum. Excessive cracks that develop in any materials shall be repaired with a like material. 1 2 Contractor shall not apply materials to surfaces which are to be pressure tested without prior approval of Shell. Insulation supports, anchor nuts, etc., shall be welded to equipment and piping by the fabricators, prior to any required stress relieving operation. s 5-3.2 HOT SERVICE 5-3.2.1 GENERAL ' All insulation shall be applied with the joints tightly butted. Circumfer ential joints shall be staggered one half a section or block length. Ragged and open joints shall be neatly filled with finishing cement. . 2 Insulation supports on vertical vessels, exchangers and piping shall be located at the bottom of the insulated area and on 12 feet 1 inch centers thereafter on piping and vessels. Supports shall be inch thick and \ the insulation thickness in width, minimum width shall be ^ inch. Insulation supports on piping and exchangers shall be located a sufficient distance from the flanges to permit removing bolts without interference or damaging ABS-061241 SHELL OIL COMPANY ENGINEERING STANDARDS INSTALLATION INSULATION STANDARD 5-3 AUGUST 1959 PAGE 3 OF 13 the insulation. The 1 inch voids between the top of supported insulation and the succeeding supports shall be filled with half compressed mineral wool insulation. 3. Insulation and final coverings around structural support attachments on vessels, exchangers and piping in hot service shall be closely fitted around such projections. Insulation voids in these areaB shall be filled with monolithic insulation. The openings in the final coverings shall be sealed off with a fillet of sealing compound. .1 INSULATION I Straight piping 2k inches O.D. and smaller shall be insulated with one layer of one piece or sectional pipe insulation. Straight piping larger them 2k inches O.D. shall be insulated with one layer of block insulation. The blocks shall be.either curved, flat or flat blocks cut into beveled lags to fit the piping contours. . 2 When insulation is required, valves, flanges and fittings in piping 1 inches and smaller, shall be insulated with multi-layers of monolithic insulation. Valves, flanges, and fittings in piping 2 inches and larger, when insulation is required, shall be insulated with one layer of pre formed or cut and fitted sectional pipe insulation. 3 Insulation shall be stopped short of uninsulated flanges and unions a sufficient distance to permit removing the bolts or breaking the union without damaging the insulation. The insulation shall be finished off at these points on a 45 bevel and back 2 inches under the adjacent final covering with a ^ inch wet coat of finishing cement followed with a inch wet coat of weatherproofing compound. -J Y Block or sectional insulation on straight piping shall be1 secured with bands on-a maximum of 9-inch centers. Banding shall not be required on one-piece insulation. Where required, insulation on valves, flanges and fittings shall be secured with bands as required for adequate securement. .2 FINAL COVERINGS .I Piping insulation, except welded elbows inside unit areas, shall be covered with flat aluminum sheets. Piping insulation except welded el bows, outside unit areas shall be covered with asbestos-asphalt felt sheets. Piping insulation inside office buildings shall be covered with canvas saturated with Arobol. .2 Welded elbow insulation inside unit areas shall be covered with pre formed aluminum elbows. Welded elbow insulation outside unit areas shall be covered with weatherproofing compound. ABS-061242 IHSULATI OH INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 4 OF 13 SHELL OIL COMPANY ENGINEERING STANDARDS 3 Aluminum and asbestos-asphalt felt final covering Bhall be fitted snugly over the insulation. Circumferential and longitudinal joints shall be lapped a minimum of 2 inches and arranged for good water drainage. Longitudinal joints on vertical piping shall be staggered. 1 Aluminum final covering shall be machine-rolled to the O.D. of the in sulation and secured with bands on a maximum of l8-inch centers. One band shall be located on each circumferential lap. Each section of final covering on vertical piping larger than 10 inches shall be supported from the next lower section with two S clips made from the banding material. The bottom section of the final coverings shall be supported by extended insulation support clips. 5 Asbestos-asphalt felt final covering shall be secured with bands on a maximum of 9-inch centers. One band shall be installed on each circum ferential lap. 6 Weatherproofing compound final covering shall be a two-coat installation. The first coat shall be a 5 inch wet coat.of finishing cement applied on top of insulation and allowed to dry thoroughly. The second coat shall be a inch wet coat of weatherproofing compound reinforced with glass fabric and troweled to a smooth finish. The glass fabric shall be secured as necessary with lacing wire. The glass fabric shall be omitted on piping 4 inches and smaller. The weatherproofing compound final cover ing and glass fabric shall lap 2 inches under the asbestos-asphalt felt final covering on the adjacent straight piping. 5-3.2.3 VESSELS INSULATION .1 The shells of vessels 2k inches O.D. and smaller shall be insulated with one layer of one piece or sectional pipe insulation. The shells of vessels larger than 2k inches O.D. shall be insulated with one layer of block insulation. The blocks shall be either curved, flat, or flat blocks cut into beveled lags to fit the shell contours. The insulation shall be secured with bands on l8-inch centers. Bands shall be machine stretched and sealed to remove slack only. 2 The heads of vessels shall be insulated with one layer of block insula tion. The blocks shall be either curved, flat, or flat blocks cut into segmental beveled lags to fit the head contours. This insulation and that on vessel transition sections shall be secured with bands anchored with lacing wire hairpins to \ inch nut blanks welded to the vessel. Anchor on top heads shall be as required for good securement. Anchors on bottom heads, transition sections of vertical vessels, and heads of horizontal vessels shall be on 12-inch centers. 3 As an alternate to the above, the heads of vessels 3 feet O.D. and under may be insulated with broken block insulation imbedded in a coat of mono lithic insulation. The voids between the broken blocks shall be filled level with finishing cement. ABS-061243 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 5 OF 13 .N Flanges, nozzles and manways shall not be insulated unless specified by Shell. When insulation is required, the insulation shall be that speci fied for shells and shall be contained in a two-piece, prefabricated aluminum removable housing. The design of the housing shall be submitted to Shell for approval. 5 Insulation shall be stopped short of uninsulated flanges a sufficient distance to permit removing the bolts without damaging the insulation. Insulation shall be stopped short of uninsulated nozzles and manways a sufficient distance to expose the nozzle to shell welds for inspection. Insulation shall be finished off at these points on a ^5 bevel and back 2 inches under the adjacent final covering with a inch wet coat of finishing cement followed with a inch wet coat of weatherproofing com pound. 6 The bottom insulation support on vertical vessels shall be a 2 inch x 2 inch x inch angle with one leg out and the other turned down to pro vide a flashing over the skirt fireproofing. On hot service vessels this support shall be located 12 inches below the skirt attachment weld seam. .7 Skirts shall be fireproofed by others. .2 FINAL COVERINGS I Vertical vessel shell insulation shall be covered with corrugated alum inum sheets. Horizontal vessel shell insulation and vertical vessel conical head and transition section insulation shall be covered with flat aluminum sheets. .._ 2 Vessel head insulation other than on conical heads shall be covered with weatherproofing compound. <, .: 3 Aluminum final covering shall, be fitted snugly over-,the insulation. . Corrugated aluminum sheets shall be installed with .the greater dimension . - in a vertical position. . Circumferential and- longitudinal joints Bhall be lapped a minimum of 3 inches and arranged for good water drainage. Longitudinal joints on vertical vessels shall be staggered. Longitudi nal expansion joints in the insulation shall be covered continuously with the final covering. - N Aluminum final covering shall be secured with bands on l8-inch centers. One band shall be located on each circumferential lap on horizontal vessels. The bands shall be machine stretched and sealed to remove slack only. Each section of final covering on vertical vessels shall be supported from the next lower section with two S clipB made from inch stainless steel banding material. The bottom section of final coverings shall be supported by clips attached to the insulation support. 5 Weatherproofing compound final covering shall be a two-coat application. The first coat shall be a j inch wet coat of finishing cement applied on top of the insulation and allowed to dry thoroughly. The second coat ABS-061244 INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 6 OF 13 SHELL 01L COMPANY ENGINEERING STANDARDS shall be a 3/8 inch wet coat of weatherproofing compound reinforced with wire mesh and troweled to a smooth finish. The wire mesh shall be secured together at the edges with lacing wire. On top heads the weatherproofing compound final covering and wire mesh shall lap 4 inches over the aluminum final covering on the adjacent shell. On bottom heads which are not con fined within skirts and on heads on horizontal vessels, the weatherproof ing compound final covering and wire mesh shall lap 4 inches under the aluminum final covering on the adjacent shell. The wire mesh shall be secured with two bands on the 4-inch lapped section on all heads. 5-3.2.4 EXCHANGERS .1 INSULATION . | The shells and channels of exchangers 24 inches O.D. and smaller shall be covered with one layer of one piece or sectional pipe insulation. The shells and channels of exchangers larger than 24 inches O.D. shall be covered with one layer of block insulation. The blocks shall be either curved, flat, or flat blocks cut into beveled lags to fit the shell or channel contours. .2 The shell heads of exchangers shall be covered with broken block insula tion imbedded in a coat of monolithic insulation. The voids between broken blocks shall be filled level with finishing cement to the required thickness. .3 Exchangers, flanges and channel heads shall not be insulated unless speci fied by Shell. When insulation is required, it shall be the same as that specified for shells and shall be contained in a two-piece, prefabricated, removable aluminum housing to be secured in place with bands. The design of the housing shall be submitted to Shell for approval. .4 Insulation shall be stopped short of uninsulated flanges a sufficient distance to permit removing the bolts without damaging the insulation. Insulation shall be stopped short of uninsulated nozzles a sufficient distance to expose the nozzle to shell welds for inspection. Insulation shall be finished off at these points on a 45 bevel and back 2 inches under the -adjacent final covering with a 1/4 inch wet coat of finishing cement followed with a 1/4 inch wet coat of weatherproofing compound. .5 Insulation on the shells of exchangers shall be secured with bands on l8-inch centers. Bands shall be machine stretched and sealed to remove slack only. Insulation on channels shall be secured with two bands. .2 FINAL COVERINGS I Exchanger shell and channel insulation shall be covered with flat alumi num sheets. ABS-061245 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 7 OF 13 .2 Exchanger shell head insulation shall be covered with weatherproofing compound. .3 Aluminum final covering shall be fitted snugly over the insulation. Cir cumferential and longitudinal joints shall be lapped a minimum of 3 inches and arranged for good water drainage. Longitudinal joints on vertical exchangers shall be staggered. 4 Aluminum final covering shall be machine rolled to the O.D. of the insu lation and secured with bands on a maximum of l8-inch centers. One band shall be located on each circumferential lap. The bands shall be machine stretched and sealed to remove slack only. Each section of final cover ing on vertical exchangers shall be supported from the next lower section with two S clips made from the banding material. The bottom section of final coverings on vertical exchangers shall be supported by extended insulation support clips. 5 Weatherproofing compound final covering shall be a two-coat application. The first coat shall be a l/4 inch wet coat of finishing cement- applied on top of the insulation and allowed to dry thoroughly. The second coat shall be a 3/8 inch wet coat of weatherproofing compound reinforced with wire mesh and troweled to a smooth finish. The wire mesh shall be secured together at the edges with lacing wire. The weatherproofing compound final covering and wire mesh on integral shell heads shall'lap 4 inches under the aluminum final covering on the adjacent shell. The wire mesh shall be secured with one band on the 4 inch lapped section on all shell heads. The wire mesh on flanged shell heads shall be laced to l/2 inch nut blanks welded to the head. -3.2.5 TANKS . .1 INSULATIONS I Tanks 12 feet O.D. and smaller shall be insulated in accord with section 5-3-2.2 for hot service vessels. - ' -v 2 Shells of tanks larger than 12 feet O.D. shall be insulated with one layer of blanket insulation. The insulation--shall be installed in long vertical blankets which shall reach from top to bottom of the shell. Joints shall be snugly butted. The blankets shall be secured by care fully pressing them onto the final covering securement studs detailed on appended drawing B/1235- Circumferential bands shall not be used. Pre cautions shall be observed to install the blankets in full thick condi tion . 3 Nozzles, manways, and roofs shall not be insulated unless specified by Shell. ABS-061246 I H SULAT 1 OH INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 8 OF I 3 SHELL OIL COMPANY ENGINEERING STANDARDS .2 FINAL COVERINGS .I Insulation on tanks 12 feet O.D. and smaller shall be covered in accord with section 5-3.2.2 for hot service vessels. .2 Insulation'on tanks larger than 12 feet O.D. shall be covered with flat asbestos-cement sheets in accord with appended drawing B/1235. The top insulation flashing angle shall be provided by others. The final cover ing securement studs shall be provided and installed by the insulation contractor. .3 Cut outs for nozzles, manways, support attachments, etc., shall be care fully fitted, flashed and sealed with sealing compound to prevent water penetration. 5-3.2.6 PUMPS, COMPRESSORS AND TURBINES .1 INSULATION . I The cases of pumps, compressors, and turbines shall be covered with broken block insulation imbedded in a coat of monolithic insulation. The voids between broken blocks shall be filled level with finishing cement to the required thickness. .2 Flanges, bearing housings, threaded connections, and supports shall not be insulated unless specified by Shell. . 3 The insulation shall be stopped short of uninsulated flanges a sufficient distance to permit removing the bolts without damaging the insulation. Insulation shall be finished off at these flanges on a 45 bevel.' .2 FINAL COVERINGS Pump, compressor and turbine insulation shall be covered with a two-coat final covering. The first coat shall be a 1/4 inch wet coat of finishing cement applied on top of the insulation and allowed to dry thoroughly. The second coat shall be a 3/8 inch wet coat of weatherproofing conpound rein forced with wire mesh and troweled to a smooth finish. The wire mesh shall be secured together at the edges with lacing wires. 5-3.3 COLD SERVICE 5-3.3.I GENERAL .I Insulation shall be applied with joints, including contraction slip joints, tightly butted and cemented with joint adhesive, in such a manner to provide one homogeneous mass of insulation with no ragged or open joints through which water vapor can penetrate. Circumferential joints shall be staggered one half a sectional or block length. ABS-061247 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 9 OF 13 .2 All valves, flanges including manway blind flanges and fittings, shall be insulated with one layer of preformed insulation. The preformed insulation shall be either factory molded or fabricated from block or sectional pipe insulation and cemented with joint adhesive. .3 Small voids under insulation around valves, flanges, fittings and other irregular surfaces shall be filled with loose mineral wool insulation. Large voids under insulation shall be filled with cut and fitted block in sulation and cemented with joint adhesive. `I Support attachments and other non-operating protrusions shall be insulated a minimum of 18 inches beyond the finished insulation. In addition, after the unit has reached operating temperatures, insulation shall be extended beyond all points where frost or ice forms. 5 Insulation adjacent to insillation supports shall be fitted in such' a manner that the support is completely covered and the insulation around the support can be sealed with joint adhesive. : 6 Insulation, after being secured in place, shall be covered with a 1/8 inch wet coat of weatherproofing compound and allowed to dry. 7 Insulation on support attachments and other non-operating protrusions shall be covered with flat aluminum sheets. When it is impractical to cover in sulation on irregular protrusions with aluminum final covering, the insula tion shall be covered with weatherproofing compound. .8 Cut outs for nozzles, manways, support attachments, etc., shall be carefully fitted, flashed and sealed with sealing compduhd'to prevent water penetra tion. ' . : * 5-3.3.2 PIPING . I INSULATION - - ' I Straight piping 2k inches O.D. and smaller shall be insulated with one layer of sectional pipe insulation. Straight piping larger than 2k inches O.D, shall be insulated-with one layer of block insulation. The blocks shall be either curved, flat, or flat blocks cut Into beveled lags to fit the piping contours. 2 Insulation on piping which shall be subjected to excessive vibration shall have the bore of the insulation coated with an application of bore coating. The bore coating shall be allowed to dry before the insulation is applied to the piping. .3 Longitudinal contraction joints shall be provided when the combination of straight run piping length and operating temperature require them to ABS-061248 INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 10 OF 13 SHELL OIL COMPANY ENGINEERING STANDARDS prevent damage to the insulation. Contraction- joints shall consist of 1 inch space between adjacent lengths of insulation filled with loose mineral wool and covered with an 18 inches long section of oversize in sulation. The oversize insulation section shall be cemented to the regular size insulation with joint adhesive. Contraction joints, when required, shall be at flanges wherever possible. .4 Insulation on straight piping shall be secured with bands on a maximum of 9-inch centers. Insulation on valves, flanges, and fittings shall be secured with bands as required for adequate securement. 5 Insulation supports shall be provided by others at the bottom of verti cal piping 3 inches and larger when a vertical run is in excess of 12 feet long. Supports shall be l/4 inch thick and shall be one half the insulation thickness in width. .2 FINAL COVERINGS * Piping insulation, including valves, flanges, and fittings except welded elbows inside unit areas shall be covered with flat aluminum sheets. Piping insulation inside office buildings shall be covered with canvas sheets saturated with Arobol. 2 Welded elbow insulation inside unit areas shall be covered with pre formed aluminum elbows. 3 Aluminum final covering shall be fitted snugly over the insulation. Circumferential and longitudinal joints shall be lapped a minimum of 2 inches and arranged for good water drainage. Longitudinal joints on vertical piping shall be staggered. Longitudinal contraction joints in the insulation shall also be covered. 4 Aluminum final covering shall be machine rolled to the O.D. of the in sulation and secured with bands on a maximum of l8-inch centers. One band shall be located on each circumferential lap. Each section of final covering on vertical piping larger than 10 inches shall be suppor ted from the next lower section with two S clips made from the banding materials. .5 Weatherproofing compound final covering shall be 3/8 inch wet coat rein forced at the center with glass fabric and troweled to a smooth finish. The glass fabric shall be lapped 2 inches at the edges. The weather proofing compound final covering and glass fabric shall lap-2 inches under the aluminum final covering on the adjacent piping. ABS-061249 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE II OF 13 5-3.3.3 VESSELS .1 INSULATION . I The shells of vessels 2k inches O.D. and smaller shall be insulated with one layer of sectional pipe insulation. The shells of vessels larger than 2k inches O.D. and the heads of all vessels shall be insulated with one layer of block insulation. The blocks shall be either curved, flat or flat blocks cut into beveled lags to fit the shell or head contours. .2 The vessel shell insulation shall extend down to the bottom of the skirt. The top 2k inches of the inside of the skirt shall also be insulated. .3 Longitudinal contraction on vertical vessels shall be compensated for by providing an extra inch.beyond the length of insulation between insula tion supports. Insulation above and below supports shall be fitted to form a 3 inches long male and female slip joint which shall completely cover the support and the void below the support. The one-inch void shall be filled with loose mineral wool insulation. .4 Insulation on the shells of vessels shall be secured with bands on 9inch centers. Bands shall be machine stretched and sealed to remove slack only. Insulation on heads and transition sections of vessels shall be secured with bands anchored with lacing wire hairpins to 1/2 inch nut blanks welded to the vessel. Anchors shall be on 12-inch centers. Insulation on the inside of vessel skirts shall be secured with joint adhesive. ?5 Insulation supports shall be provided by others on vertical vessels. Supports shall be located on 12 feet 1 inch centers,starting 12 feet 1 inch above the bottom of the skirt. Supports shall be l/k inch thick and shall be one half the insulation thickness in width. .2 FINAL COVERINGS I Vertical vessel shell and skirt insulation shall be covered with corru gated aluminum sheets. Horizontal vessel shell insulation, vertical vessel conical head and transition section insulation, and flange in sulation shall be covered with flat aluminum sheets. 2 Vertical vessel top head insulation shall be covered with flat aluminum sheets. Other vessel head insulation except on conical heads and inside skirt insulation shall be covered with weatherproofing compound. 3 Aluminum final covering shall be fitted snugly over the insulation. Corrugated aluminum sheets shall be installed with the greater dimension in a vertical position. Circumferential and longitudinal joints shall be lapped a minimum of 3 inches and arranged for good water drainage. Longitudinal joints on vertical vessels shall be staggered. Longitudi nal contraction joints in the insulation shall be covered continuously with the final covering. ABS-061250 INSULATION INSTALLATION AUGUST 1959 PAGE 12 OF 13 STANDARD 5-3 SHELL OIL COMPANY ENGINEERING STANDARDS .4 Aluminum final covering for vertical vessel top head insulation shall be prefabricated segmental sections flanged; flashed, and through bolted to form a water tight covering. The head final covering shall lap 4 inches over the aluminum final covering on the adjacent shell. .5 Aluminum final covering for manway flange insulation shall be a twopiece, prefabricated housing to be secured in place with bands. The design of the housing shall be submitted to Shell for approval. .6 Aluminum final covering shall be secured with bands on l8-inch centers. One band shall be located on each circumferential lap on horizontal vessels. The bands shall be machine stretched and sealed to remove slack only. Each section of final covering on vertical vessels shall be sup ported from the next lower section with two S clips made from 1/2 inch stainless steel banding materials. .7 Weatherproofing compound final covering shall be 3/8 inch thick wet coat reinforced at the center with glass fabric and troweled to a smooth finish. The glass fabric shall be lapped 3 inches at the edges. On bottom heads which are not confined within skirts and on heads on hori zontal vessels the weatherproofing compound and glass fabric shall lap 4 inches under the aluminum final covering on the adjacent shell. The glass fabric shall be secured with two bands on the 4 inches lapped section. 5-3.3.4 EXCHANGERS .1 INSULATION . I The shells and channels of exchangers 24 inches O.D. and smaller shall be covered with one layer of sectional pipe insulation. The shells and channels of exchangers larger than 24 inches O.D. and all shell and channel heads shall be covered with one layer of block insulation. The blocks shall be either, curved, flat or flat blocks cut into beveled lags to fit shell, channel, or head contours. 2 Insulation on the shells and channels of exchangers shall be secured with bands on 9"inck centers. Bands shall be machine stretched and sealed to remove slack only. Insulation on the heads of exchangers shall be secured with bands anchored with lacing wire hairpins to l/2 inch nut blanks welded to the heads on 12-inch centers. 3 Insulation supports shall be provided by others at the bottom of insula tion on vertical exchangers. Supports shall be l/4 inch thick and shall be one half the insulation thickness in width. ABS-061251 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION INSTALLATION STANDARD 5-3 AUGUST 1959 PAGE 13 OF 13 .2 FINAL COV ERINGS . I Exchanger shell, channel, channel head, and flange insulation shall be covered with flat aluminum sheets. .2 Exchanger shell head insulation shall be covered with weatherproofing compound. .3 Aluminum final covering shall be fitted snugly over the insulation. Circumferential and longitudinal joints shall be lapped a minimum of 3 inches and arranged for good water drainage. Longitudinal joints on vertical exchangers shall be staggered. .4 Aluminum final covering for flange and channel head insulation shall be a two-piece, prefabricated housing to be secured in place with bands. The design of the housing shall be submitted to Shell for approval. 5 Aluminum final covering shall be machine rolled to the O.D. of the in sulation and secured with bands on a maximum of l8-inch centers. One band shall be located on each circumferential lap. The bands shall be machine stretched and sealed to remove slack only. Each section of final covering on vertical exchangers shall be supported from the next lower section with two S clips made from the banding material. .6 Weatherproofing compound final covering shall be a 3/8 inch thick wet coat reinforced at the center with glass fabric and troweled to a smooth finish. The glass fabric shall be lapped 3 inches at the edges. The weatherproofing compound final covering and glass fabric shall lap Cl inches under the aluminum final covering on the adjacent shell. The glass fabric shall be secured with one band on the 4 inches lapped sec tion on all shell heads. 5-3.3.5 PUMPS AND COMPRESSORS .1 INSULATION . I The cases, flanges, and supports of pumps and compressors shall be in sulated by boxing in with one layer of block insulation and filling the interior of the box with loose mineral wool insulation. .2 Packing glands shall be left exposed. .3 The insulation box shall be covered with a l/8 inch wet coat of weather proofing compound and allowed to dry. .2 FINAL COVERING ABS-061252 Pump and compressor insulation shall be covered with a 3/8 inch thick wet coat of weatherproofing compound reinforced at the center with glass fabric and troweled to a smooth finish. The glass fabric shall be lapped 3 inches at the edges. V These documents have been collected in response to pending litigation. Do not remove or add any materials to this collection. I f you have any questions, contact the legal department (713/241-1351). ry 0" /) i cr j) 0" -8 <1