【正文】 件材料在買方圖紙、數(shù)據(jù)表或容器標準中未加指定，則由賣方?jīng)Q定所有材料并在賣方圖紙中指明，遞交買方審批。Gaskets, bolts and nuts for blind nozzles and manholes shall be as specified in Purchaser’s drawing or data sheet.盲設(shè)備口及人孔所用的墊片、螺栓及螺母在買方圖紙或數(shù)據(jù)表中指定。The thickness indicated on Purchaser’s drawings are those proposed by Purchaser. Vendor shall check and confirm under his guarantee that such thickness provide the proper strength under the specified conditions. Any lesser thickness considered by Vendor shall immediately be referred to Purchaser, but in no case, any proposed thickness will be decreased without Purchaser’s prior approval, even if it has an extra margin beyond the required thickness.買方圖紙中指定的厚度為買方建議厚度。Maximum allowable tensile stress of foundation bolts of A307 or Q235 shall be 100 N/mm2 for longterm and 150 N/mm2 for shortterm loading conditions.A307 or Q235材質(zhì)的基礎(chǔ)螺栓的最大容許拉應(yīng)力為：長期負荷條件100 N/mm2，短期負荷條件150 N/mm2。BS5500附錄G(c) Pressure Vessel Handbook (By . Megyesy)Tolerances shall be in accordance with Appendix A “Tolerances for Pressure Vessels” unless otherwise specified on Purchaser’s drawings.容許偏差應(yīng)符合附錄A圖A“壓力容器容許偏差”的要求，除非買方圖紙中另有指定。殼體及封頭units as large as can be put in and out from the vessel through the nearest upper manhole. The weight of one block to be withdrawn shall not generally exceed 40 kg except for support beams.除非另有規(guī)定，可拆除內(nèi)件在能夠從上方最近的人孔拿出、放入的情況下盡可能設(shè)計為最大。設(shè)備口及人孔In case a non standard flange is designed by vendor, the panion flange with bolt, nut and gasket shall be supplied with by vendor.在賣方設(shè)計非標法蘭時，應(yīng)同時提供螺栓、螺母及墊片。For Vendors in China, the following forgings shall be of Class III or higher, other forgings shall not be of less than Class II.對于中國的賣方，以下鍛件應(yīng)為III級或以上，其它鍛件不應(yīng)小于II級。如果螺栓尺寸為M27或以下，使用公制粗牙螺紋。saddle ladders and lugs for them in accordance with Purchaser’s platform amp。Shell plates shall be laid out so that there will be a minimum of welded seams.殼板布置應(yīng)使焊縫最小Longitudinal welded seams on adjacent shell segments shall be separated by at least 4 times the wall thickness of the thicker plate but not less than 100 mm.相鄰殼段上的縱向焊縫應(yīng)相隔最厚板壁厚的4倍但不小于100mm。如果必須使用熱成型，應(yīng)根據(jù)買方批準在成型后進行熱處理。same welding procedures as for the main seams. After removing these attachments, the surface shall be ground flush and examined by magnetic particle method. In case of high alloy steel or nonferrous materials, liquid penetrate method can be substituted.在成型過程中需要臨時附件，應(yīng)使用同主焊縫的相同焊接程序?qū)⑴R時附件焊到殼板上。Welding procedures shall be selected to minimize the residual stresses insofar as practical.在選擇焊接工藝時應(yīng)使殘余應(yīng)力最小化。No welding shall be performed on vessels after the final postweld heat treatment without Purchaser’s approval.未得到買方允許，在最終焊后熱處理后不得在容器上進行任何焊接。 Heat Treatment在兩遍對接焊不切實際的情況下，可使用一遍對接焊，但需保證完全焊透。焊接A formed head shall generally be made of single plate.成型的封頭通常應(yīng)用單板制作。成型saddleAccording to Purchaser’s information, Vendor shall check the strength of the vessels during transportation and field erection, and provide necessary reinforcements prior to shipment. The shock factor of , as minimum, shall be considered in these design. Vendor shall submit such strength calculations to Purchaser.根據(jù)買方信息，賣方在容器運輸及現(xiàn)場安裝過程中應(yīng)檢查容器強度，并在運輸前進行必要的加固。其它Threads of bolts and nuts shall be coated before installation with antigalling agent.在安裝前螺栓的螺紋及螺母應(yīng)用防磨損劑包覆。For length of the nozzle see Vessel Standard D123.設(shè)備口的長度見容器標準D123 Bolts, Nuts and Gaskets≥1200mm.F) or tongue and groove (Tamp。Material材質(zhì)Nozzle Size設(shè)備口尺寸Neck Thickness頸部厚度Carbon steel碳鋼DN≤2”Sch 80DN 2”Sch 40Stainless steel不銹鋼DN≤6”Sch 40sDN 6”Sch 10s吊柱或鉸鏈的詳情應(yīng)符合容器標準。The type, rating and facing of nozzle flanges shall conform to those specified in Purchaser’s drawing or data sheet.設(shè)備口法蘭的類型、等級及端面應(yīng)符合買方圖紙或數(shù)據(jù)表的規(guī)定?？刹捎秒p螺母、防松動墊圈、點焊等。內(nèi)件The nominal thickness of 2:1 ellipsoidal or dished head shall be selected to assure the minimum thickness after forming shall not be less than the minimum required thickness of head. Also, the nominal thickness shall not be less than the minimum required thickness ofThe hydrostatic test condition in the installed position shall be considered for design of all vessels.所有容器的設(shè)計時應(yīng)考慮安裝后的水壓試驗條件。In general, steel 20R and 16MnR shall be applied for carbon steel plates used for pressure parts. If calculated thickness exceeds 12 mm by applying 20R material, then 16MnR material shall be used.一般情況下，壓力部件碳鋼板應(yīng)用20R和16MnR鋼鐵。00Cr19Ni10316 SS (3) Gasket for equipment shell flange shall be selected by the following table.設(shè)備法蘭用墊片根據(jù)下表選擇Table 1 Materials for Girth Flange Gaskets材料可從人孔上拆除的部件：Add 1/4 of the specified corrosion allowance on each side (min. mm total for both sides).在每側(cè)腐蝕余度上加上1/4倍（）Notes: no corrosion allowance is added for high alloy and nonferrous internals.注：對于高合金及非鐵內(nèi)件通常不加腐蝕余度。Vessel parts in contact with two fluids having different temperatures shall be designed for both higher and lower design temperatures.如果容器部件會接觸到兩種不同溫度的介質(zhì)，應(yīng)同時根據(jù)高的設(shè)計溫度及低的設(shè)計溫度進行設(shè)計。設(shè)計溫度Design pressure shall mean the gauge pressure at the top of a pleted vessel in its operating position. Unless otherwise agreed in advance, internal static head shall be added to the design pressure to determine the thickness of any specific part of the vessel.設(shè)計壓力指完工的容器在操作位置時頂部壓力表的壓力值。12Class II Site Condition設(shè)備口外部負荷局部應(yīng)力分析設(shè)備口清單（根據(jù)買方圖紙或數(shù)據(jù)表）(5) All weld seams, and weld and surface finish symbolsVendor shall submit to Purchaser drawings and documents as called for in Purchaser’s requisition sheets.賣方將根據(jù)買方需求單向買方提供圖紙和文件。When sketches, data sheets or duty specifications are provided, Vendor shall prepare Engineering Drawings covering the規(guī)范和標準In such a case, Vendor shall promptly refer the conflicts to Purchaser in writing to obtaining Purchaser’s instruction.在此情況下，賣方需及時書面告知買方以獲得買方指示。JB47302000HG205831998JB/T4735－1997Safety Technology Supervision Procedures (1999 edition)壓力容器安全技術(shù)監(jiān)督程序（1999年版）(2) Steel Pressure Vess