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MANUALLYOPERATEDVALVESByaddinganactuatortothebasicvalvesymbol,thevalvebecomesacontrolvalve.V-1V-2V-3V-4Gatevalve闸阀Globevalve球形阀Checkvalve止回阀Ballvalve球阀V-5Plugvalve阻塞阀Handcontrolvalve手动控制阀V-7Butterflyvalveordamper蝶阀或节气闸V-8Stopcheckvalve断流止回阀Ramvalve冲击阀Blowdownvalve吹扫阀Diaphragmvalve薄膜阀Anglevalve角阀Threewayvalve三通阀Fourwayvalve四通阀Discvalve隔膜阀Needlevalve针阀Slidevalve滑阀OthervalvesIndicatedproperabbreviationundervalve,example2-6″-WB-134-J1B7-FHC-1．5″UNITNUMBER单元编号LINESIZE管线尺寸SERVICESYMBOL用途符号LINENUMBER管线编号PIPINGSERVICESPECIFICATION管道用途描述TYPEOFINSULATIONORTRACING绝缘类型或保温LINEINSULATIONTHICKNESS管道保温厚度INSULATIONCODE保温代号FCCFullcoldconservation完全保持冷却FHCFullheatconservation完全保持伴热PHCPartialheatconservation局部保持伴热PPPersonnelprotection个人防护NINoinsulation无保温STSteamtracedandinsulated蒸汽伴热ETElectrictracedandinsulated电伴热INSTRUMENTNUMBERINGPHILOSOPHYX--XX--XXX—XMultipleinstrumentdesignator多种仪表指示Loopnumber/Intrumenttag回路编号或仪表位号Sectionnumber/Intrumentcode区域编号或仪表代号Trainnumber顺序编号PIPINGSYMBOLS管道符号silencer消音器filter过滤器Openfunnel敞口漏斗Opendrain敞口排放DRCloseddrainfunnel密闭排放漏斗E-1E-2slopeDownwordslope下斜othersgePipespecificationlimit管线规格界限Strainghteningvane矫正器具Spectacleblindinstalldonutinline管道上安装的开位置肓板E-5E-4Pipesizereduction管径尺寸缩小Spectacleblindinstalldonutinline管道上安装的关位置肓板Flamearrester防火装置SSTE1XXXXHoseconnection软管连接Temporarystrainer临时过滤器Basketstrainer篮式过滤器Y-typestrainerY型过滤器Expansionjoint膨胀接合处HHamerBlind肓板SampleConnection取样连接SteamTrap蒸汽汽水阀PipingEngineeredItem管道工程单位SteamDesuperheater蒸汽减温器GENERAL概述Vortexbreaker涡流断路器Grade平面PackedSection整个区域Mesh-TypeMistEliminator网状除雾器NoteReferenceSymbol注释参照符号HorizontialVane-TypeMistEliminator水平叶片型除雾器LINESYMBOLS管道符号PrimaryProcessLine主工艺管道SecondaryProcessLine次工艺管道JacketedPipe套管ExistingORFutureLine现有或将有的管道FlexibleHost柔性软管UndergroundLine地下管道InstrumentPneumaticLine仪表气源管线InstrumentCapillaryTubing仪表毛细管HydraulicSignal水压信号Electromagnetic,Sonic,,OpticalOrRadioactiveSignal电磁、声波、光学或辐射信号HeatTracedLine伴热管线ElectricalSignal电信号InternalSignal(softwareordatalink)内部信号（软件或数据连接）ABBRIVATIONS缩写AG—AboveGround地面HP—HorsePowerOrHighpressor马达或高压ATM—Atmosphere大气H.PT—HighPoint高点BF—BlindFlange肓法兰IAC—InsulationAcoustic隔音BHP—BrakeHorsePower马达闸LC—LockClosed锁定关BL—BatteryLimit电池限额LO—LockOpen锁定开BW—Backwash逆流LH—LockHopper锁斗CC—ChemicalClean化学清洗LP—LowPressure低压CHOP—ChainOperated连续运转L,PT—LowPoint低点CP—CorrosionProbe防腐蚀探测器M—MotorOrMotorizedActuator电动机或电动执行器CSC—CarSealClosed气缸密封关MW—Manway人行道CSC—CarSealOpen气缸密封开NC—NormallyClosed常闭D—Drain排放NDE—NormallyDeenergized正常不带电DE—Deenergized不带电NE—NormallyEnergized正常带电E—Energized带电NNF—NormallyNoFlow正常无流量(E)—Existing当前的NO—NormallyOpen常开(F)—Furnished供应PD—PositiveDisplacement实际置换F＆P--Furnished＆piped供应或管道传输PV—ProcessVariable进程变量FC—FailClosed故障关S—SampleConnection取样连接FI—FailIndeterminate不确定故障SP.GR.—SpecificGravity特殊引力FL—FailLocked故障锁定SO—SteamOut蒸汽排出FO—FailOpenOrFirstOut故障开或首次输出SOV—SolenoidOperatedValve电磁阀FOB—FlatOnBottom底部平面SP—SetPoint设定点FOT—FlatOnTop顶部平面SR—StressRelieve减压FP—FullPort整个端口ST—SteamTrap蒸汽汽水阀FV—FullVacuum完全真空TSO—TightShut-off完全切断GE—GeneralElectricGasificationProcess常规电气化程序GO—GearOperated齿轮传动T/T—TangentToTangent相互接触HH—Handhole人孔UG—Underground地下的HS-=-HydraulicSupply供水V—Vent出口VV—VentValve排放阀VB—VortexBreaker涡流断路器VP—VeePortV型端口Commoditycodes通常代码Air空气LN—LowPresureNitrogen低压氮气BD—BlowDown吹扫LS—LowPresureSteam低压蒸汽BF—BiolerFeedWater锅炉给水LWS—LimestoneWaterSupply灰水给水BW—BlackWater黑水MN—MediumPresureNitrogen中压氮气CW—CoolingWaterSupply冷却给水MS—MediumPresureSteam中压蒸汽CWR—CoolingWaterReturn冷却水循环NG—NaturalGas大气CWS—CoalWaterSupply水煤浆OG—OxygenGas氧气DR—Drainage排水装置PG—ProcessGas(syngasorpurifiedgas)工艺气(合成气或净化气)DW—DemineralizedWater脱盐水S—SolidSulphur硫磺FEG—FuelGas燃料气SC—SteamCondensate蒸汽冷凝水FL—GasToFlare气体去燃烧SSC—ShiftCondensate冷凝置换FLG—FlashGas闪蒸气SW—SoftWater软水FO—FuelOil燃油VT—VentGas排放气FW—FreshWater新鲜水WS—SlagWater渣水GW—GreyWater灰水XSC—MixLiquidOfShiftCondensateAndDenmineralWaterOrOthers冷凝物混合液和脱盐水或其它HN—HighPresureNitrogen高压氮气HS—HighPresureSteam高压蒸汽HW—HeatingWaterSupply热水HWR—HeatingWaterReturn热水循环IA—InstrumentAir仪表空气