MANUALLY OPERATED VALVESBy adding an actuator to the basic valve symbol ,the valve becomes a control valve .V-4闸阀Globe valve球形阀止回阀Ball valve 球阀阻塞阀手动控制阀V-7Butterfly valve or damper 蝶阀或节气闸V-8断流止回阀Ram valve 冲击阀Blowdown valve 吹扫阀Diaphragm valve 薄膜阀Angle valve 角阀Three way valve 三通阀Four way valve 四通阀Disc valve 隔膜阀Needle valve 针阀Slide valve 滑阀Other valvesIndicated proper abbreviation under valve, example2-6″-WB-134-J1B7-FHC-1．5″UNIT NUMBER 单元编号 LINE SIZE 管线尺寸SERVICE SYMBOL 用途符号 LINE NUMBER 管线编号PIPING SERVICE SPECIFICATION 管道用途描述 TYPE OF INSULATION OR TRACING 绝缘类型或保温 LINE INSULATION THICKNESS 管道保温厚度INSULATION CODE 保温代号FCC Full cold conservation 完全保持冷却FHC Full heat conservation 完全保持伴热 PHC Partial heat conservation 局部保持伴热 PP Personnel protection 个人防护NI No insulation 无保温ST Steam traced and insulated 蒸汽伴热 ET Electric traced and insulated 电伴热 INSTRUMENT NUMBERING PHILOSOPHY X--XX--XXX —XMultiple instrument designator 多种仪表指示Loop number/Intrument tag 回路编号或仪表位号Section number/Intrument code区域编号或仪表代号Train number 顺序编号 PIPING SYMBOLS 管道符号silencer 消音器filter 过滤器Open funnel 敞口漏斗Open drain 敞口排放 Closed drain funnel密闭排放漏斗slope Downword slope下斜othersgePipe specification limit 管线规格界限 Strainghtening vane矫正器具Spectacle blind install donut in line 管道上安装的开位置肓板E-5Pipe size reduction管径尺寸缩小Spectacle blind install donut in line 管道上安装的关位置肓板防火装置S软管连接 Temporary strainer临时过滤器 Basket strainer篮式过滤器 Y-type strainerY 型过滤器 Expansion joint膨胀接合处HHamer Blind 肓板Sample Connection取样连接Steam Trap 蒸汽汽水阀Piping Engineered Item管道工程单位 Steam Desuperheater蒸汽减温器GENERAL 概述涡流断路器Grade 平面整个区域Mesh-Type Mist Eliminator 网状除雾器Note Reference Symbol注释参照符号Horizontial Vane-TypeMist Eliminator 水平叶片型除雾器LINE SYMBOLS 管道符号Primary Process Line主工艺管道Secondary Process Line次工艺管道Jacketed Pipe 套管Existing OR Future Line现有或将有的管道Flexible Host 柔性软管Underground Line地下管道Instrument PneumaticLine仪表气源管线Instrument CapillaryTubing仪表毛细管Hydraulic Signal水压信号Electromagnetic,Sonic,,Optical Or RadioactiveSignal电磁、声波、光学或辐射信号Heat Traced Line伴热管线Electrical Signal电信号InternalSignal(software or datalink) 内部信号（软件或数据连接）ABBRIVATIONS缩写AG—Above Ground 地面 HP—Horse Power Or Highpressor马达或高压ATM—Atmosphere 大气 H.PT—High Point 高点BF—Blind Flange 肓法兰 IAC—Insulation Acoustic隔音BHP—Brake Horse Power马达闸 LC—Lock Closed 锁定关BL—Battery Limit 电池限额 LO—Lock Open 锁定开BW—Backwash 逆流 LH—Lock Hopper 锁斗CC—Chemical Clean化学清洗 LP—Low Pressure 低压CH OP—Chain Operated连续运转 L,PT—Low Point 低点CP—Corrosion Probe 防腐蚀探测器M—Motor Or Motorized Actuator电动机或电动执行器CSC—Car Seal Closed 气缸密封关 MW—Manway人行道CSC—Car Seal Open 气缸密封开 NC—Normally Closed常闭D—Drain 排放 NDE—Normally Deenergized正常不带电DE—Deenergized 不带电 NE—Normally Energized正常带电E—Energized 带电 NNF—Normally No Flow正常无流量(E)—Existing 当前的 NO—Normally Open常开(F)—Furnished 供应 PD—Positive Displacement实际置换F＆P--Furnished＆piped供应或管道传输 PV—Process Variable进程变量FC—Fail Closed 故障关 S—Sample Connection取样连接FI—Fail Indeterminate 不确定故障 SP.GR.—Specific Gravity特殊引力FL—Fail Locked 故障锁定 SO—Steam Out蒸汽排出FO—Fail Open Or First Out故障开或首次输出SOV—Solenoid Operated Valve电磁阀FOB—Flat On Bottom 底部平面 SP—Set Point设定点FOT—Flat On Top 顶部平面 SR—Stress Relieve减压FP—Full Port 整个端口 ST—Steam Trap蒸汽汽水阀FV—Full Vacuum 完全真空 TSO—Tight Shut-off完全切断GE—General Electric Gasification Process常规电气化程序GO—Gear Operated 齿轮传动 T/T—Tangent To Tangent相互接触HH—Hand hole 人孔 UG—Underground地下的HS-=-Hydraulic Supply 供水 V—Vent出口VV—Vent Valve 排放阀 VB—Vortex Breaker涡流断路器VP—Vee Port V型端口Commodity codes通常代码Air 空气 LN—Low Presure Nitrogen低压氮气BD—Blow Down 吹扫 LS—Low Presure Steam低压蒸汽BF—Bioler Feed Water 锅炉给水 LWS—Limestone Water Supply灰水给水BW—Black Water 黑水 MN—Medium Presure Nitrogen中压氮气CW—Cooling Water Supply 冷却给水 MS—Medium Presure Steam中压蒸汽CWR—Cooling Water Return 冷却水循环 NG—Natural Gas大气CWS—Coal Water Supply水煤浆 OG—Oxygen Gas氧气DR—Drainage 排水装置PG—Process Gas(syngas or purified gas)工艺气(合成气或净化气)DW—Demineralized Water 脱盐水 S—Solid Sulphur硫磺FEG—Fuel Gas 燃料气 SC—Steam Condensate蒸汽冷凝水FL—Gas To Flare气体去燃烧 SSC—Shift Condensate冷凝置换FLG—Flash Gas 闪蒸气 SW—Soft Water软水FO—Fuel Oil 燃油 VT—Vent Gas排放气FW—Fresh Water 新鲜水 WS—Slag Water渣水GW—Grey Water 灰水XSC—Mix Liquid Of Shift Condensate And Denmineral Water Or Others 冷凝物混合液和脱盐水或其它HN—High Presure Nitrogen 高压氮气 HS—High Presure Steam高压蒸汽HW—Heating Water Supply 热水 HWR—Heating Water Return热水循环IA—Instrument Air仪表空气。