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1、1AARHArithmetic Average Roughness Height算术平均粗糙度高度2AGSSAngular Seating Surface角支持面3 AMBAmbient 环境4ANSIAmerican National Standards Institute美国国家标准协会5AOAdjustable Opening可调式开6APIAmerican Petroleum Institute美国石油协会7ASAlloy Steel 合金钢8 ASBAsbestos 石棉9 ASBRAsbestos Rubber 石棉橡胶10ASMEAmerican Society Of Mecha
2、nical Engineers美国机械工程师学会11ASTMAmerican Society Of Testing Materials美国材料及试验学会12AVAngle Valve角阀13AWWAAmerican Water Works Association美国自来水厂协会14BVBall Valve 球阀15BBBolted Bonnet螺栓连接阀盖16BBEBevel Both Ends 两端坡口端17BCBolted Cover螺栓连接阀帽18 BEBevel End 坡口端19BLDBlind Flange盲法兰（法兰盖）20BLSBellows Sealing 波纹管密封专业文档
3、供参考，如有帮助请下载。21BFWBoiler Feed Water锅炉给水22BGBolted Gland螺栓连接填料压盖23BLEBevel Large End大端坡口端24BLKBlank 插板（盲板）25BSBritish Standard英国标准26 BFVButterfly Valve 蝶阀27 BTVBreathing Valve呼吸阀28 BWButt Welded 对焊29CCarbon / Carbon Content碳/ 碳含量30CACorrosion Allowance腐蚀裕量31 CVCheck Valve 止回阀32CICast Iron铸铁33 CL COMM.
4、 Class 等级34 CODE Commodity Code商品代码35CONConcentric 同心36CPLCoupling 管箍37CRChloroprene Rubber氯丁橡胶38CSCarbon Steel 碳钢39DE S-BoltDouble End Stud Bolt双头螺柱40DNNominal Diameter公称直径专业文档供参考，如有帮助请下载。DRDrip Ring排污环DSAWDouble Side Arc Welding双面埋弧焊DIDuctile Iron球墨铸铁DVDiaphragm Valve隔膜阀EBExtended Bonnet延长阀盖ECCEcc
5、entric偏心EFWElectrical Fusion Welding电熔焊ELElbow弯头ENREngineering Standard工程标准EPDMEthylene-Propylene-Diene Monomer三元乙丙橡胶ERWElectrical Resistance Weld电阻焊FCPLFull Coupling 双承口管箍凹面 / 大凹面（密封面）FEFlat Face全平面（密封面）FG Flexible Graphite柔性石墨FLB Floating Ball浮动式球阀FLGFlange法兰FNPT60 Female NPT Threads60NPT 内螺纹FP Fu
6、ll Port全通径FRPFiberglass-Reinforced Plastics玻璃纤维增加塑料（玻璃钢）FTFull Threaded Stud Bolt全螺纹螺柱GSK Gasket垫片专业文档供参考，如有帮助请下载。GALVGalvanized镀锌GBPStainless Steel Wire & Flexible Graphite Braided Packing不锈钢丝和 柔性石墨纺织填料GBPRStainless Steel Wire & Flexible Graphite Braided Packing+FlexibleGraphitePackingRing不锈钢丝和柔性石墨
7、纺织填料柔性石墨填料环GLVGlobe Valve截止阀GMGGrooved Metal Gasket齿形金属垫片GOGear Operation齿轮操作GRGrade级别GRAFGraphite石墨GV Gate Valve闸阀HAS-CHastelloy-C哈斯合金 -CHCPL Half Coupling单承口管箍HEXHexagon 六角HHNHeavy Hexagonal Nut重型六角螺母HFHardening Face 表面硬化HFWHigh Frequency Weld高频焊HPSHigh Pressure Service高压介质HWHand Wheel 手轮IDInside
8、Diameter内径IRInner Ring内环专业文档供参考，如有帮助请下载。ISOInternational Organization For Standardization国际标准组织ITImpact Test冲击试验JSJack Screw顶丝螺纹LATLateral Tee斜三通LBPound磅LFFemale Face / Large Female凹面 / 大凹面（密封面）LGLarge Groove大槽面（密封面）LGSLongitudinal Seam纵向焊缝LJLap Joint松套连接LMMale Face / Large Male凸面 / 大凸面（密封面）LM/LFLar
9、ge Male Face/ Large Female Face大凸面 / 大凹面（密封面）LNLined 衬里LPLow Pressure低压LRLong Radius长半径LTLarge Tongue大榫面（密封面）LT/LGLarge Tongue And Large Groove大榫面和大槽面（密封面）LTSLow Temperature System低温系统LTCSLow Temperature Carbon Steel低温碳钢LUGLug Type凸耳型MAXMaximum最大MEG Metallic Envelope Gasket金属包覆垫片专业文档供参考，如有帮助请下载。MFRM
10、anufacturer制造商MHMetallic Hose金属软管MIMalleable Iron可锻铸铁MINMinimum最小MNPT60 。Male NPT Thread60?NPT外螺纹MPMedium Pressure中压介质MSSAmerican Valve & fitting Fabrication Standardization Association美国阀门及配件工业制造商标准化协会MTMagnetic Particle Testing磁粉检测MTOMaterial Take-Off材料统计NBNon-Bonnet非阀盖NBENipple Both Ends两端短节NBRNi
11、trile-Butadiene Rubber丁腈橡胶No Number 编号NPSNominal Pipe Size管子公称尺寸NPTNational Taper Pipe (Thread)（美国）国家锥形管螺纹NRNatural Rubber天然橡胶NVNeedle Valve针形阀OCROctagonal Ring Gasket八角形环垫片ODOutside Diameter外径OLETOut-Let管嘴（支管台）OROuter Ring外环专业文档供参考，如有帮助请下载。OS & YOutside Screw And Yoke支架式明杆外螺纹OVOrbit Valve Orbit阀门OVROval Ring Gasket椭圆形环垫片P&IDPiping And Instrument Diagram管道和仪表流程图PPPolyethylene聚丙烯PATNPattern型式PSBPressure Sealing Bonnet压力密封阀盖PBEPlain Both Ends两端平端面PSCPressure Sealing Cap压力密封阀帽PEPlain End平端面PLSOPlate Slip-On板式平焊POEPlain One End一端平端面PPPolyethylene聚丙烯PPL
