管件的各種英文縮寫管道英文縮寫AAnchor固定ABS*Absolute絕對的AISI*AmericanIronandSteelInstitute美國鋼鐵學會ANSI*AmericanNationalStandardsInstitute美國國家標準學會API*AmericanPetroleumInstitute美國石油學會APPROX*Approximate大約，近似的ASBAsbestos石棉ASME*AmericanSocietyOfMechanicalEngineers美國機械工程師協會ASSY*Assembly裝配，組裝ASTM*AmericanSocietyOfTestingMaterial美國材料實驗協會ATM*Atmosphere大氣壓AWG*AmericanWireGage美國線規AWS*AmericanWel****Society 美國焊接協會AWWA*AmericanWaterWorksAssociation 美國水工協會BBB BoltedBonnet 栓柱連接的閥蓋BB ByBuyer 買方供貨B-B BeveledEnd-BeveledEnd 兩端為坡口端BCBoltCircle 螺栓中心圓BoltedCover(cap) 螺栓連接的閥蘭蓋（帽）BEBeveledEnd(forwel****)坡口（焊接用）BellEnd承口BEPBothEndsPlain兩端平BETBothEndsThreaded兩端帶螺紋BLBatteryLimit裝置區邊界BFBlindFlange盲板法蘭BLDBlind盲板BLDG*Buil****建筑物BMBillOfMaterial材料表BOPBottomOfPipe管底B-PBeveledEnd—PlainEnd坡口端.平端BVButterflyvalve蝶閥BWG*BirminghamWireGage伯明翰線規BWButtWeld對焊CCCap管帽C-CCentertoCenter中至中C-ECentertoEnd中至端面C-FCentertoFace中至面CH-OPChainOperated鏈條操縱的CheckeredPlate花紋鋼管*CastIron鑄鐵CL*Class英制壓力等級，等級，種類CLEARClearance間隙CODContinuedonDrawing接續圖COL*Column柱，塔CONC Concentric 同心的CONNConnection連接，接口CONT*Continue 連續.ControlValve 控制閥CPLGCoupling 管接頭，連軸節. ConcentricReducer 同心異徑管. *CarbonSteel 碳鋼. ColdSpring 冷緊CarSealClose 在關閉狀態下封住CarSealOpen 在開啟狀態下封住CUSTCustomer 客CheckValve 止回閥DDEG *Degree 度DF Drainfunnel 排液漏斗DIA *Diameter 直徑DIM *Dimension 尺寸DISCH*Discharge出口，排出DiaphragmVELVE隔膜閥DMFDoubleMaleAndFemale雙重凹凸DNNorminalDiameter公稱直徑DNDown下DRDrain排液DSDirectionalStop定向限為架DWG*Drawing圖EE*East東ECExternalCoating 外面涂防腐層ECCEccentric偏心EFWElectricFusionWelded電容焊的EL(ELEV)*Elevation標高；立面ELLElbow彎頭EQIOPEquipment設備，裝置EQUIVEquivalent相當的.EccentricReducer偏心異經管ERWElectricResistanceWelded電阻焊的EWEyeWasher&Shower洗眼器及淋浴器ExpansionJoint膨脹節FFDNFoundation基礎FFFlatFacedOrFullFaced全平面；滿平面F-FFaceToFace面至面FGWFusionGasWel****氣熔焊FIG*Figure圖FLFloor樓面FLEXTUBEFlexibleTube撓性管FLGFlange法蘭FLGDFlanged法蘭式的FLGFFlangedFace法蘭面FOBFlatOnBottom底面平FOTFlatOnTop頂面平FPFixPoint固定點FSForgedSteel鍛鋼FTFFittingToFitting管件直連FTG Fitting 管件FURND Furnished 提供的，裝設的FW FieldWeld 現傷焊GG Guide 導向GA *Gage 表，表壓，規（線規）GALV*Galvanize鍍鋅GLGroundLevel地面GLVGlobeValve截止閥GEAROPGearOperated齒輪傳動的GMAWGasMetalArcWel****金屬極惰氣體保護焊GSKTGasket墊片GTAW(Inert)GasTungstenArcWel****惰性氣體保護鎢極電弧焊GVGateValve閘閥HHHanger吊架HCHoseConnection軟管接頭HalfCoupling半節管接頭HDRHeader總管HEX*Hexagon六角形HFHardAlloyFaceon閥內件（閥心）為ValveTrim硬質合金密封面HHHandHole手孔HORHorizontal水平的*HighPressure高壓HSHoseStation軟管IID *InsideDiameter 內徑IN*Inch英寸INSInsulation隔熱INSTInstrument儀表INVInvert(insidebottomofpipe)管子內底IPSIronPipesize鐵管尺寸ISOIsometricDrawing周測圖（空視圖）InsideBatteryLimit裝置邊界內惻ISNSInsidescrew&Non-risingStem內螺紋非升桿ISRSInsidescrew&Risingstem內螺紋升桿JJTJoint接頭JSJackScrew頂開（起）螺栓LLCLockedClosed在關閉狀態下鎖定LEPLargeendplain大端為平的LETLargeendThreaded大端帶螺紋LGLong長LGFLensGasketFace透鏡墊連接面LeftHandThread左螺紋LIFTLiftType升降式LJLapJoint搭接LJFLapJointFlange松套法蘭LOLockedOpen在開啟狀態下鎖定.LowPressure低壓LRLongRadius長半徑LRELongRadiusElbow長半徑彎頭LTG LargeTongue&Groove 大椎槽MMATLMaterial材料MAXMaximum最大MBMachineBolt機器螺栓（單頭）MFMaleandFemale凸和凹MFGManufacture制造MF*Manufacture制造廠MHManhole人孔MIMalleableIron可鍛鑄鐵MIN*Minimum最小MJMechanicalJoint機械接頭MatchLine連續線MSS*ManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.美國閥門和管件制造商標準化協會MTOMaterialtake-off材料統計MWMinimumWall最小壁厚.MineralWool礦（物）棉NN*North北NBNominalBore公稱孔徑.Non-Bonnet無閥蓋NCNormallyClosed常閉NIPNipple短管NONormallyOpen;常開*Number號；數量NOINSNoInsulation不隔熱NOM Nominal 公稱的；額定的NOZNozzle管口NPSNominalPipeSize公稱管徑NPSHNetPositiveSuctionHead凈正吸入壓頭NPT*AmericanNationalTaper美國錐管螺紋PipeThreadNSNominalSize公稱直徑NVNeedleValve針形閥OOD*OutsideDiameter外徑OETOneendThreaded一端帶螺紋OROutsideRadius外半徑ORFOrifice孔板ORIENTOrientation方位OS&YOutsideScrewandYoke外螺紋閥桿和閥軛OSNBOutsideScrewNon-Bonnet外螺紋無閥蓋PPPlug堵頭PAPPipingArrangementPlan管道布置平面圖PBPressureSealBonnet壓力密封的閥蓋P-BPlainEnd–BevelEnd平端—坡口端PCPressureSealCap壓力密封的閥帽PitchCircleDiameter節圓直徑PEPlainEnd(notbeveled)平端（無坡口）PFPlatform平臺PIDPiping&InstrumentDiagram管道及儀表流程圖PN*NominalPressure公稱壓力PN PlantNorth 工廠北向POS pointofSupport 支承點P-P PlainEnd—PlainEnd 兩端為平端PREP Preparation 加工準備PSIA *PoundsPerSquareInchAbsolute 磅/PSIG PoundsPerSquareInchGage 磅/PTPoint點PTFE*Polytetrafluoroethylene聚四氟乙烯PartNo.件號PVPlugValve旋塞閥PVC*PolyVinylChloride聚氯乙烯QQTY*Quantity數量RR*Radius半徑REDReducer異徑管REFReference參考REINFReinforce加強REQDRequired需要；申請REV*Revision修改RFRaisedFace凸面RGRingGasket環形墊片RightHandThread右螺旋RJRingJoint環墊接頭RORestrictionOrifice限流孔板RPM*RevolutionsPerMinute轉/分RPS *RevolutionsPerSecond 轉/秒RSRestingSupport支承架，滑動架RTJRingTypeJoint（見RJ）RVReliefValve安全泄液閥SS*South南SSpring彈簧（管架用）SAW(Automatic)SubmergedArcWel****自動埋弧焊SBStudBolt雙頭螺栓SBScrewedBonnet螺紋閥蓋SCSampleCooler取樣冷卻器SCH*Schedule管壁厚系列號SCRDScrewed螺紋SEPSmallendPlain小端為平的SETSmallendThreaded小端帶螺紋SFSemi-Finished半光SGSightGlass視鏡SHSurfaceHardFacing硬質密封面SKSketch草圖SMAWShieldedMetalArcWel****有保護的金屬電弧焊SMLSSeamless無縫SNSwagedNipple異徑短管SOSlip–On滑套SOFSlip–OnFlange滑套法蘭SPEC*Specification規定，說明SPLSoundPressureLever升壓水準SQ*Square方的，平方SR ShoutRadius 短半徑SRE ShortRadiusElbow 短半徑彎頭SS *StainlessSteel 不銹鋼ST SteamTrap 蒸汽疏水閥STD *Standard 標準STG SmallTongue&Groove 小椎槽面STL *Steel 鋼STM Steam 蒸汽SteamTracing蒸汽拌熱SUCTSuction吸入口SVSafetyValve安全泄氣閥SWSocketWeld承插焊SWGSwage鍛造，模鍛SWMGSwingType旋啟式SYMSymmetrical對稱的TT Tee 三通TEThreadedEnd螺紋端TEMP*Tempe