1。
2 管件 Fitting弯头 elbow异径弯头 reducing elbow带支座弯头 base elbowk半径弯头 long radius elbow短半径弯头 short radius elbow长半径180°弯头 long radius return短半径180°弯头 short radius 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 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 andbranch）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 both outlet)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 ＊American Petroleum Institute 美国石油学会APPROX ＊Approximate 大约,近似的ASB Asbestos 石棉ASME *American Society Of Mechanical Engineers美国机械工程师协会ASSY ＊ Assembly 装配，组装ASTM ＊ 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 * American Wel**＊＊ Society 美国焊接协会AWWA ＊ American Water Works Association 美国水工协会BBB 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 Bolted Cover（cap）螺栓连接的阀兰盖（帽）BE Beveled End （for wel**＊＊）坡口（焊接用）B。
本规定用于设计图纸及表格中，使达到缩写词的用法统一，同时解决图面空位不够及简化表示方法的作用。
对于技术文件的文字部分如不易了解缩写词的含意时应避免采用缩写词，如必须采用时，除标有*号者外，应加注释。
本规定仅列入管道专业常用的缩写词，未包括流体缩写及常用计量单位符号。
1缩写词ABBREVIATIONSAA Anchor 固定ABS *Absolute 绝对的AISI *American Iron andSteel Institute 美国钢铁学会ANSI *American NationalStandards Institute 美国国家标准学会API *American Petroleum Institute 美国石油学会APPROX *Approximate 大约，近似的ASB Asbestos 石棉ASME *American Society OfTesting Material 美国机械工程师协会ASSY *Assembly 装配，组装ASTM *American Society OfTesting Material 美国材料实验协会ATM *Atmosphere 大气压AWG *American Wire Gage 美国线规AWS *American Welding Society 美国焊接协会AWWA *American Water WorksAssociation 美国水工协会BBB 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 Bolted Cover(cap) 螺栓连接的阀兰盖（帽）BE Beveled End (for welding) 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 法兰盖BLD Blind 盲板BLDG *Building 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C.V Check Valve 止回阀DDEG *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 *Double Male And Female 公称直径DN Down 下DR Drain 排液DS Directional Stop 定向限为架DWG *Drawing 图EE *East 东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 Welding 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 现伤焊GG 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 Welding 金属极惰气体保护焊GSKT Gasket 垫片GTAW (Inert)Gas Tungsten Arc Welding 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HH Hand Pole 手孔HOR Horizontal 水平的H.P *High Pressure 高压HS Hose Station 软管IID *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LGF Lens Gasket Face 透镜垫连接面L.H.THD Left Hand Thread 左螺纹LIFT Lift Type 升降式LJ Lap Joint 搭接LJF Lap Joint Flange 松套法兰LO Locked Open 在开启状态下锁定L.P. Low Pressure 低压LR Long Radius 长半径LRE Long Radius Elbow 长半径弯头LTG Large Tongue & Groove 大椎槽MMA TL 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 Malleable Iron 可锻铸铁MIN *Minimum 最小MJ Mechanical Joint 机械接头M.L Match Line 连续线MSS * Manufacturers StandardizationSociety of the Valve andFittings Industry, Inc.美国阀门和管件制造商标准化协会MTO Material take-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 Outside Screw and Yoke 外螺纹阀杆和阀轭OSNB Outside Screw Non-Bonnet 外螺纹无阀盖PP Plug 堵头PAP Piping Arrangement Plan 管道布置平面图PB Pressure Seal Bonnet 压力密封的阀盖P-B Plain End –Bevel End 平端—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 Plain End (not beveled) 平端（无坡口）PF Platform 平台PID Piping & Instrument Diagram管道及仪表流程图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 Preparation 加工准备PSIA *Pounds Per Square InchAbsolute 磅/（绝）英寸2PSIG Pounds Per Square Inch Gage 磅/（表）英寸2PT 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 Restriction Orifice 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 Welding 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 Welding 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ST Steam Trap 蒸汽疏水阀STD *Standard 标准STG Small Tongue & Groove 小椎槽面STL *Steel 钢STM Steam 蒸汽STM.TR Steam Tracing 蒸汽拌热SUCT Suction 吸入口SV Safety Valve 安全泄气阀SW Socket Weld 承插焊SWG Swage 锻造，模锻SWMG Swing Type 旋启式SYM Symmetrical 对称的TT Tee 三通TE Threaded End 螺纹端TEMP *Temperature 温度TG Tongue & Groove 椎槽THD *Threaded 螺纹的THK *Thickness 厚度TL Tangent Line 切线TN True North 真实北向TOC Top of Concrete 混凝土北向TOP Top of pipe 管顶TOS Top of Support 支架顶面Top of Steel 钢结构顶面TYP 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V AC Vacuum 真空V AR Variable 可变的VERT Vertical 垂直的VOL *V olume 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 Welding Line 焊接线WN Welding 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A——公称直径单位为mm L Angle(L Shape)角钢B——公称直径单位为IN [Channel([Shape)槽钢LBS Pounds 磅I I —Beam 工字钢ΦDiameter 直径WF Wide Flange 宽缘工字钢φCenter Line 中心线R Plate 钢板英寸#Pounds Per Square Inch 磅/2#（为于阿拉伯数字的左上角）Number 号。
