弯头 elbow异径弯头reducing elbow 带支座弯头base elbow 长半径弯头（标准 1.5 倍弯曲半径 ---1.5D ） long radius elbow三通 tee异径三通 reducing tee 等径三通 straight tee 带侧向口的三通（右向或左向） side outlet tee （right hand or 1eft hand）异径三通（分支口为异径）reducing tee （reducing on outlet）异径三通（一个直通口为异径）reducing tee （reducing on one run）带支座三通base tee 异径三通（一个直通口及分支口为异径）reducing tee （reducing on one run and outlet）异径三通（两个直通口为异径，双头式）reducing tee （reducing on both runs, bull head）45 °斜三通 45 °lateral45 °斜三通（支管为异径）45 °lateral （reducing on branch）45 °斜三通（一个直通口为异径）45 °lateral （reducing on one run）45 °斜三通（一个直通口及支管为异径）45 °lateral （reducing on one run and branch）Y 型三通（俗称裤衩） true “ Y”四通 cross等径四通straight cross 异径四通reducing cross 异径四通(一个分支口为异径) reducing cross (reducing on one outlet) 异径四通(一个直通口及分支口为异径) reducing cross (reducing on one run and outlet) 异径四通(两个分支口为异径) reducing cross (reducing on both outlet) 异径四通(一个直通口及两个分支口为异径) reducing cross (reducing on one run and bothoutlet) 异径管 reducer同心异径管 concentric reducer 偏心异径管 eccentric reducer 锻制异径管 reducing swage 螺纹支管台 threadolet 焊接支管台weldolet 承插支管台 sockolet 弯头支管台 elbolet 斜接支管台latrolet 镶入式支管嘴sweepolet 短管支管台nipolet 支管台，插入式支管台 boss螺纹支管台 Threadolet弯头支管台 elbolet焊接支管台 weldolet ； on weld短管支管台 nipolet承插支管台 sockolet烧焊支管台 weldolet斜接支管台 latrolet承插焊支管台 Sockolet支管台，插入式支管台 boss管接头 coupling, full coupling半管接头 half coupling异径管接头 reducing coupling活接头 union内外螺纹缩接(俗称补芯) bushing管帽 cap (C)堵头 plug短节 nipple异径短节 reducing nipple; swage nipple 管道英文缩写A Anchor 固定ABS * Absolute 绝对的AISI *American Iron and Steel Institute 美国钢铁学会ANSI * American National Standards Institute 美国国家标准学会API 会APPROX *American Petroleum Institute 美国石油学*Approximate 大约，近似的ASB ASME Asbestos 石棉*American Society Of MechanicalEngineers 美国机械工程师协会ASSY * ASTM * Assembly 装配，组装American Society Of Testing Material美国材料实验协会ATM * Atmosphere 大气压AWG * American Wire Gage 美国线规AWS *AWWA * Associatio nB American Wel**** Society 美国焊接协会American Water Works 美国水工协会Bolted Bonnet 栓柱连接的阀盖BB By Buyer 买方供货B-B Beveled End-Beveled End 两端为坡口端BC Bolt Circle 螺栓中心圆B.C （帽）BE Bolted Cover(cap) 螺栓连接的阀兰盖Beveled End (for wel****) 坡口(焊接用)B.E Bell End 承口BEP Both Ends Plain 两端平BET Both Ends Threaded 两端带螺纹 BL Battery Limit 装置区边界BF Blind Flange 盲板法兰BLD Blind 盲板BLDG *Buil**** 建筑物BM Bill Of Material 材料表BOP Bottom Of Pipe 管底B-P Beveled End —Plain End 坡口端 .平端BV Butterfly valve 蝶阀BWG * Birmingham Wire Gage 伯明翰线规BW Butt Weld 对焊CC Cap 管帽C-C Center to Center 中至中C-E Center to End 中至端面C-F Center to Face 中至面CH-OP Chain Operated 链条操纵的CH.PL Checkered Plate 花纹钢管C.I *Cast Iron 铸铁CL *Class 英制压力等级，等级，种类CLEAR Clearance 间隙COD Continued on Drawing 接续图COL *Column 柱，塔CONC Concentric 同心的CONN Connection 连接，接口CONT *Continue 连续CONT.V. Control Valve 控制阀CPLG Coupling 管接头，连轴节C.R. Concentric Reducer 同心异径管C.S. *Carbon Steel 碳钢C.S. Cold Spring 冷紧C.S.C. Car Seal Close 在关闭状态下封住C.S.O. Car Seal Open 在开启状态下封住CUST Customer 客CH Check Valve 止回阀DEG *Degree 度DF Drain funnel 排液漏斗DIA *Diameter 直径DIM *Dimension 尺寸DISCH *Discharge 出口，排出Diaphragm VELVE 隔膜阀DMF Double Male And Female 双重凹凸DN Norminal Diameter 公称直径DN Down 下DR Drain 排液DS Directional Stop 定向限为架Drawing 图DWG *EE *East 东专业文档供参考，如有帮助请下载。

EC External Coating 外面涂防腐层ECC Eccentric 偏心EFW Electric Fusion Welded 电容焊的EL(ELEV) *Elevation 标高；立面ELL Elbow 弯头EQIOP Equipment 设备，装置EQUIV Equivalent 相当的E.R. Eccentric Reducer 偏心异经管ERW Electric Resistance Welded 电阻焊的EW Eye Washer & Shower洗眼器及淋浴器EXP.JT Expansion Joint 膨胀节FFDN Foundation 基础FF Flat Faced Or Full Faced 全平面；满平面F-F Face To Face 面至面FGW Fusion Gas Wel**** 气熔焊FIG *Figure 图FL Floor 楼面FLEX TUBE Flexible Tube 挠性管FLG Flange 法兰FLGD Flanged 法兰式的FLGF Flanged Face 法兰面FOB Flat On Bottom 底面平FOT Flat On Top 顶面平FP Fix Point 固定点FS Forged Steel 锻钢FTF Fitting To Fitting 管件直连FTG Fitting 管件FURND Furnished 提供的，装设的FW Field Weld 现场焊G Guide 导向GA * Gage 表，表压，规（线规）GALV *Galvanize 镀锌GL Ground Level 地面GLV Globe Valve 截止阀GEAR OP Gear Operated 齿轮传动的GMAW Gas Metal Arc Wel**** 金属极惰气体保护焊GSKT Gasket 垫片GTAW (Inert)Gas Tungsten Arc Wel**** 惰性气体保护钨极电弧焊GV Gate Valve 闸阀HH Hanger 吊架HC Hose Connection 软管接头H.CPLG Half Coupling 半节管接头HDR Header 总管HEX *Hexagon 六角形HF Hard Alloy Face on 阀内件（阀心）为Valve Trim 硬质合金密封面专业文档供参考，如有帮助请下载。

HOR H.P * HSI ID *Horizontal 水平的 High Pressure高压Hose Station 软管Inside Diameter 内径IN * Inch 英寸INS Insulation 隔热INST Instrument 仪表INV Invert (inside bottom of pipe) 管子内底IPS Iron Pipe size 铁管尺寸ISO Isometric Drawing 周测图（空视图）I.S.B.L Inside Battery Limit 装置边界内恻ISNS Inside screw & Non-rising Stem内螺纹非升杆ISRS Inside screw & Rising stem 内螺纹升杆 JJT Joint 接头JS Jack Screw 顶开（起）螺栓LLC Locked Closed 在关闭状态下锁定LEP Large end plain 大端为平的LET Large end Threaded 大端带螺纹LG Long 长L.H. THD Left Hand Thread 左螺纹 LIFT LJ Lift TypeLap Joint 搭接升降式LJF LO Lap Joint Flange 松套法兰 Locked Open 在开启状态下锁定L.P. Low Pressure 低压LR Long Radius 长半径LRELong Radius Elbow 长半径弯头 LTG M Large Tongue & Groove 大椎槽MATL Material 材料 MAX Maximum 最大 MB Machine Bolt 机器螺栓 单头） MF Male and Female 凸和凹 MFG Manufacture制造MF * Manufacture 制造厂 MH Manhole 人孔 MI MalleableIron可锻铸铁MIN *Minimum 最小 MJMechanical Joint机械接头Match Line 连续线Manufacturers Standardization Society of M.LMSS * the Valve and Fittings Industry, Inc.美国阀门和管件制造商标准化协会MTOMaterialtake-off材料统计MW Minimum Wall 最小壁厚M.W. Mineral Wool 矿（物）棉NN * North 北NB Nominal Bore 公称孔径N.B. Non-Bonnet 无阀盖NC Normally Closed 常闭NIP Nipple 短管NO Normally Open; 常开*Number 号；数量NO INS No Insulation 不隔热NOM Nominal 公称的；额定的NOZ Nozzle 管口NPS Nominal Pipe Size 公称管径NPSH Net Positive Suction Head 净正吸入压头NPT *American National Taper 美国锥管螺纹Pipe ThreadNS Nominal Size 公称直径NV Needle Valve 针形阀OOD *Outside Diameter 外径OET One end Threaded 一端带螺纹OR Outside Radius 外半径ORF Orifice 孔板ORIENT Orientation 方位OS & Y 阀轭Outside Screw and Yoke 外螺纹阀杆和OSNB 阀盖POutside Screw Non-Bonnet 外螺纹无P Plug 堵头PAP 置平面图Piping Arrangement Plan 管道布PB Pressure Seal Bonnet 压力密封的阀盖P-B Plain End -Bevel End 平端一坡口端PC Pressure Seal Cap 压力密封的阀帽P.C.D. Pitch Circle Diameter 节圆直径PE 口) PFPlain End (not beveled) 平端(无坡Platform 平台PID 表流程图Piping & Instrument Diagram 管道及仪PN *Nominal Pressure 公称压力PN Plant North 工厂北向POS point of Support 支承点P-P Plain End —Plain End 两端为平端PREP PSIA Preparation 加工准备*Pounds Per SquareInch Absolute 磅 /PSIG Pounds Per Square Inch Gage 磅/ PT Point 点PTFE *Polytetrafluoroethylene 聚四氟乙烯PT.NO Part No. 件号PV Plug Valve 旋塞阀PVC *Poly Vinyl Chloride 聚氯乙烯QQTY *Quantity 数量RR * Radius 半径RED Reducer 异径管REF Reference 参考REINF Reinforce 加强REQD Required 需要；申请REV *Revision 修改RF Raised Face 凸面RG Ring Gasket 环形垫片R.H.THD Right Hand Thread 右螺旋RJ Ring Joint 环垫接头RO RestrictionOrifice限流孔板RPM * Revolutions Per Minute 转/分RPS * Revolutions Per Second 转/秒RS Resting Support 支承架，滑动架RTJ Ring Type Joint ( 见 RJ）RV Relief Valve 安全泄液阀SS *South 南S Spring 弹簧（管架用）SAW (Automatic)Submerged Arc Wel**** 自动埋弧焊SB Stud Bolt 双头螺栓SB Screwed Bonnet 螺纹阀盖SC Sample Cooler 取样冷却器SCH * Schedule 管壁厚系列号SCRD Screwed 螺纹SEP Small end Plain 小端为平的SET Small end Threaded 小端带螺纹SF Semi-Finished 半光SG Sight Glass 视镜SH Surface Hard Facing 硬质密封面SK Sketch 草图SMAW Shielded Metal Arc Wel**** 有保护的金属电弧焊SMLS Seamless 无缝SN Swaged Nipple 异径短管SO Slip -On 滑套SOF Slip -On Flange 滑套法兰SPEC * Specification 规定，说明SPL Sound Pressure Lever 升压水准SQ * Square 方的，平方SR Shout Radius 短半径SRE Short Radius Elbow 短半径弯头SS *Stainless Steel 不锈钢Steam Trap 蒸汽疏水阀 *Standard 标准 Small Tongue & Groove 小椎槽面*Steel 钢 Steam 蒸汽Steam Tracing 蒸汽拌热Suction 吸入口Safety Valve 安全泄气阀 Socket Weld 承插焊Swage 锻造，模锻 Swing Type 旋启式 Symmetrical 对称的Tee 三通Threaded End 螺纹端 *Temperature 温度 Tongue & Groove椎槽*Threaded 螺纹的 *Thickness 厚度 Tangent Line 切线 True North 真实北向 Top of Concrete 混凝土北向 Top of pipe 管顶Top of Support 支架顶面Top of Steel 钢结构顶面ST STD STG STL STM STM.TR SUCT SV SW SWG SWMGSYM T T TE TEMP TG THD THK TL TN TOC TOP TOS TopTY P Typical 典型的UUB Union Bonnet 带活接头的阀盖UC Union Cap 带活接头的阀帽UN Union 活接头VV Valve 阀VAC Vacuum 真空VAR Variable 可变的VERT Vertical 垂直的VOL *Volume 卷，册，容量，体积WW * West 西WB Weld Branch 焊接支管WC Weld Cap 焊接管帽WD Width 宽度WE Weld End 焊接端WL Wel**** Line 焊接线WN Wel**** Neck 对焊法兰（颈部）WNF Weld Neck Flange 对焊法兰WP Working Pressure 工作压力W.P. Working Point 工作点WT Wall Thickness 壁厚Weight 重量XXH Extra Heavy 加强的，加厚的XXH Double Extra Heavy 双倍加强（厚）的XS Extra Strong 加强的 XXS Double Extra Strong 双倍加强的YYP Yield Point 屈服点elbow reducing elbow base elbow long radius elbow short radius elbow longradius return shortradius return带侧向口的弯头（右向或左向） side outlet elbow （right hand or left hand ）双支管弯头（ 形） double branch elbow 三通 teereducing tee等径三通 straight tee1.2 管件 Fitting弯头 异径弯头 带支座弯头 k 半径弯头 短半径弯头 长半径 180 °弯头 短半径 180 °弯头异径三通带侧向口的三通(右向或左向) (right hand or 1eft hand) 异径三通(分支口为异径) (reducing on outlet) 异径三通(一个直通口为异径) (reducing on one run) 带支座三通side outlet tee reducing teereducing teebase tee异径三通(一个直通口及分支口为异径) reducing tee (reducing on one run and outlet) 异径三通(两个直通口为异径，双头式) reducing tee (reducing on both runs, bull head) 45°斜三通45 lateral °45°斜三通（支管为异径） 45 lateral （re °ducingon branch ）45°斜三通 （一个直通口为异径 ） 45 lateral（reducing on one run ） 45°斜三通 （一个直通口及支管为异径 ） 45 lateral （reducingon one run and branch ）Y 型三通（俗称裤衩） true “ Y ” 四通 cross 等径四通straight cross异径四通 reducing cross 异径四通(一个分支口为异径 cross (reducing on one outlet) 异径四通(一个直通口及分支口为异径) cross (reducing on one run and outlet) 异径四通(两个分支口为异径) (reducing on both outlet)异径四通(一个直通口及两个分支口为异径) reducing cross (reducing on one run and both outlet) 异径管 reducer同心异径管 concentric reducereccentric reducer reducing swage threadoletreducingreducing reducing cross 偏心异径管 锻制异径管 螺纹支管台焊接支管台weldolet承插支管台sockolet弯头支管台elbolet斜接支管台latrolet镶入式支管嘴sweepolet短管支管台nipolet支管台，插入式支管台 boss管接头coupling, full coupling半管接头half coupling异径管接头reducing coupling活接头union内外螺纹缩接（俗称补芯） bushing管帽cap （C）堵头plug短节nipple异径短节reducing nipple; swage nipple 1.3 弯管 Bend预制弯管fabricated pipe bend跨越弯管（八形）cross-over bend偏置弯管（ ~ 形）offset bend90°弯管quarter bend环形弯管cirele bend单侧偏置 90 °弯管（ ? 形）single offsetquarterbend单侧偏置U 形膨胀弯管（| ?形）bend U 形弯管singleoffsetU”U” bend双偏置 U 膨胀弯管bend斜接弯管double offsetexpansionU”mitre bend三节斜接弯管3-piece mitrebend折皱弯管corrugated bend圆度roundness1.4 法兰 Flange (FLG )整体管法兰integral pipeflange钢管法兰steel pipeflange螺纹法兰threadedflange 滑套法兰（包括平焊法兰）slip-on welding flange承插焊法兰slip-on flange (SO);socket weldingflange松套法兰lap joint flange(LJF)对焊法兰welding neck flange (WNF) 法兰盖blind flange,blind孔板法兰orificeflange异径法兰reducingflange盘座式法兰pad type flange松套带颈法兰loose hubbed flange 焊接板式法兰welding plateflangewelding neck collar (与 stub end 相压力级class 压力 —温度等级法兰面加工 facing finish算术平均粗糙高度average roughness height (AARH) 配对法兰 companion-flange似） 平焊环 welding-oncollar突缘短节 stub end, lap翻边端lapped pipe end松套板式法兰 loose plateflange法兰密封面，法兰面 突面 flangefacingraised face(RF)凸面 male face (MF) 凹面female face (FMF)榫面 tongue face槽面 groove face环连接面ring joint face全平面；满平面 光滑突面 flat face; full face (FF)smooth raised face (SRF) 粗糙度 roughness 光滑的 smooth齿形serrate d均方根root mean square (RMS)对焊环pressure rating, pressure rating pressure-temperature ratingarithmeticalflat gasket flat ring gasket夹棉织物的橡胶 insertion 夹石棉织物的橡胶 fabricinsertion 夹石棉织物及金属丝加强的橡胶 elastomer withasbestos fabric insertion and with wire reinforcement 无石墨压缩白石棉垫片 non graphited compressed white asbestos gasket 天然白橡胶垫片 natural white rubber gasket波纹金属包嵌石棉垫片 with asbestos inserted corrugated metal gasket1.5 垫片 Gasket (GSKT)垫片的型式 type of gasket 平金属垫片flat metal gasket 压缩石棉垫片 gasket 浸聚四氟乙烯的石棉垫片 asbestos gasket 夹石棉的缠绕金属垫片 gasket with asbestos filler 内环 inner ring 外环，外定位环 波纹金属垫片compressed asbestos class PTFE impregnatedspiral-woundmetalouterringcorrugated metal gasket平垫片 环形平垫片elastomer with asbestos elastomer with cotton fabric双夹套波纹金属包石棉垫片 corrugated metal double jacketed asbestos filled gasket double jacketed gasket flat metal jacketed asbestossolid metal serrated gasket grooved metal gasket ring joint metal gasket octagonal ring gasket oval ring gasket lens gasket non-metallic gasketTOE 是Threaded One End 的缩写，意思是一端螺纹POE 是 Plain One End 的缩写，意思是一端平口 TBE 是Threaded Both End 的缩写，意思是两端螺纹 PBE 是Plain Both End 的缩写，意思是两端平口TOE&PO 就是一端平口，另一端螺纹连接 TBE 是两头都是螺纹连接 PBE 是两头都是平口（焊接） BBE 两端都是坡口双夹套垫片 金属包石棉平垫片 filled gasket 整体金属齿形垫片 槽形金属垫片 环形连接金属垫片 八角环形垫片 椭圆环形垫片 透镜式垫片 非金属垫片。