管道单线图符号说明

1、ADJUSTABLE STOOL可调支耳ALLOY合金ANGLE&CHANNEL角钢/槽钢API美国石油学会标准AREA区域ASME美国机械工程师学会标准ASTM美国材料与试验协会标准BALL VALVE球阀BARE PIPE裸管BB(BOLTED BONNET)螺栓连接型阀盖BC(BOLTED COVER)螺栓连接型阀帽BE(BEVELLED END)坡口端BEAM梁BL(BLIND FLANGE)盲法兰BRACKET悬臂支架BRONZE铜BUTTERFLY VALVE蝶阀BW(BEVELLED WELD)对焊C(COLD INSULATION)保冷CAP管帽 CARBON CONTENT碳

2、含量CHECK VALVE止回阀CL(CLASS)等级CLAMP管夹CONNT TO连接到CORNER TYPE L型（支吊架）COUPLING管接头CS(CARBON STEEL)碳钢DEG(DEGREE)度DGN(DESIGN)设计DOWN在下面、向下DUMMY PIPE假管E(EAST)东 E(ELECTRICAL TRACING)电伴热E/N东/西坐标EFW电熔焊EL 标高ELBOW弯头EPDM三元乙丙橡胶EQUAL TEE等径三通EQUIPMENT设备ERECTION安装ERW电阻焊EXPANSION JOINT膨胀节 FABRICATION预制FLANGE法兰FLAT SIDE D

3、OMN平面在下面FORGE锻制FP(FULL PORT)通径FULL THRDED全螺纹F-WDG柔性闸板G.O齿轮操作GALV.镀锌GATE VALVE闸阀GLOBE VALVE截止阀GRAPHITE石墨GUIDE SHOE导向管托GUIDE STOPPER SHOE 导向限位型管托H SHAPEH型钢H(HOT INSULATION)保温HEAVY NUT重型螺母HF(HARD FACE)硬质合金面HORIZONTAL水平的HQ STD寰球院标准HW-STEM N 45.0 U阀杆北偏上45度HW-STEM W 50.0 S阀杆西偏南50度IMPORT进口（材料）INNER/OUTER R

4、ING内/外环INSTRUMENT仪表INSULATION保温ISRS明杆内螺纹ITEM项、件KCS镇静碳钢LC锁关LENGTH长度LINE管线LJ(LAP JOINT)松套式连接LO锁开LR(LONG RADIUS)长半径LTCS低温碳钢LUG凸耳式MATERIAL 材料MAX.最大MFR(MANUFACTUER)制造厂MIN.最小、最少MISCELLANEOUS 混合型的MONEL蒙乃尔铜-镍合金MSS美国阀门和管件制造厂标准化协会标准N(NO INSULATION)不保温N(NORTH)北NACE美国腐蚀工程师协会标准NC正常关NIPPLE短节NIPPOLET短管支管台NOTE注释NOZ

5、ZLE管嘴NPD公称管径OFFSET偏置OPERATE CLOSE操作关OPERATE OPEN操作开ORIENT朝向OS&Y支架式明杆外螺纹PE平端PER按照PI压力指示PIECE片PIPE管子PIPE SUPPORT管支架PISTON活塞式PP人身防护PRES(PRESSURE)压力PT 压力变送PTFE加强聚四氟乙烯PWHT焊后热处理REDUCER CON.同心异径管REDUCER ECC.偏心异径管REDUCING TEE异径三通REINFORCING PAD补强板RF/RFFE突面法兰端RING环 RING-JOINT GASKET(OVAL)环连接椭圆垫RJ环连接RUN PIPE主

6、管S(SOUTH)南S10中压蒸汽伴热S4低压蒸汽伴热S63W南偏西63度SCH壁厚系列SCRD螺纹SEE ISO接至单线图SHEET页SLIDE LUG导向支耳SLIDE SHOE滑动管托SLIDE STOOL滑动耳轴SLIDE STRAP导向型管夹SMLS无缝SNUBBER减振器SOCKLET承插支管台SOFT IRON软铁SP(SHORT PATTERN)短型SPACER&BLANK插板/垫环SPECIAL特殊的SPECIFICATION规范、标准SPECTACLE BLINDK8字盲板SPIRAL WOUND GASKET缠绕垫片SPRING SUPPORT弹簧架SPT-WDG分体楔式

7、SR(SHORT RADIUS)短半径SS(STAINLESS STEEL)不锈钢STANCHION支柱STD.标准STEAM TRAP蒸汽疏水阀 STOP VALVE切断阀STOPPER SHOE限位型管托STRAIGHT PIPE直管STRAINER过滤器STRAP管夹STRUCTURE 结构STUB END突缘短节STUD BOLT/HEX. NUT双头螺栓/六角螺母SV(SAFETY VALVE)安全阀SW承插焊SWAGE锻造S-WDG楔形单闸板TAIL SOUTH尾部向南TAIL UP尾部向上TE螺纹端 TEFLON SLIDE PLATE聚四氟乙烯滑动板TEMP(TEMPERATU

8、RE)温度THRD(THREADED)螺纹TI温度指示TIGHT SHOE 固定型管托TRIM.阀芯TRUNNION耳轴TT温度变送U/G地管UP向上、在上面V/D(VENT/DRAIN)放空/排净VALVE阀门VERTICAL垂直的W(HOT WATER TRACING)热水伴热W(WEST)西W27S西偏南27度WAFER圆片WELD焊接WELDOLET焊接支管台 WN(WELDING NECK)带颈对焊Y-GLOBE VALVEY型截止阀管管道道单单线线图图符符号号/ /词词语语说说明明ADJUSTABLE STOOL可调支耳HEAVY NUT重型螺母ALLOY合金HF(HARD FAC

9、E)硬质合金面ANGLE&CHANNEL角钢/槽钢HORIZONTAL水平的AREA区域HQ STD寰球院标准ASME美国机械工程师学会标准HW-STEM N 45.0 U阀杆北偏上45度ASTM美国材料与试验协会标准HW-STEM W 50.0 S阀杆西偏南50度BALL VALVE球阀IMPORT进口（材料）BARE PIPE裸管INNER/OUTER RING内/外环BB(BOLTED BONNET)螺栓连接型阀盖INSTRUMENT仪表BC(BOLTED COVER)螺栓连接型阀帽INSULATION保温BE(BEVELLED END)坡口端ISRS明杆内螺纹BEAM梁ITEM项、件B

10、L(BLIND FLANGE)盲法兰KCS镇静碳钢BRACKET悬臂支架LC锁关BRONZE铜LENGTH长度BUTTERFLY VALVE蝶阀LINE管线BW(BEVELLED WELD)对焊LJ(LAP JOINT)松套式连接C(COLD INSULATION)保冷LO锁开CAP管帽 LR(LONG RADIUS)长半径CARBON CONTENT碳含量LTCS低温碳钢CHECK VALVE止回阀LUG凸耳式CL(CLASS)等级MATERIAL 材料CLAMP管夹MAX.最大CONNT TO连接到MFR(MANUFACTUER)制造厂CORNER TYPE L型（支吊架）MIN.最小、最

11、少COUPLING管接头MISCELLANEOUS 混合型的CS(CARBON STEEL)碳钢MONEL蒙乃尔铜-镍合金DEG(DEGREE)度MSS美国阀门和管件制造厂标准化协会标准DGN(DESIGN)设计N(NO INSULATION)不保温DOWN在下面、向下N(NORTH)北DUMMY PIPE假管NACE美国腐蚀工程师协会标准E(EAST)东 NC正常关E(ELECTRICAL TRACING)电伴热NIPPLE短节E/N东/西坐标NIPPOLET短管支管台EFW电熔焊NOTE注释EL 标高NOZZLE管嘴ELBOW弯头NPD公称管径EPDM三元乙丙橡胶OFFSET偏置EQUAL

12、 TEE等径三通OPERATE CLOSE操作关EQUIPMENT设备OPERATE OPEN操作开ERECTION安装ORIENT朝向ERW电阻焊OS&Y支架式明杆外螺纹EXPANSION JOINT膨胀节 PE平端FABRICATION预制PER按照FLANGE法兰PI压力指示FLAT SIDE DOMN平面在下面PIECE片FORGE锻制PIPE管子FP(FULL PORT)通径PIPE SUPPORT管支架FULL THRDED全螺纹PISTON活塞式F-WDG柔性闸板PP人身防护G.O齿轮操作PRES(PRESSURE)压力GALV.镀锌PT 压力变送GATE VALVE闸阀PTFE

13、加强聚四氟乙烯GLOBE VALVE截止阀PWHT焊后热处理GRAPHITE石墨REDUCER CON.同心异径管GUIDE SHOE导向管托REDUCER ECC.偏心异径管GUIDE STOPPER SHOE 导向限位型管托REDUCING TEE异径三通H SHAPEH型钢REINFORCING PAD补强板H(HOT INSULATION)保温RF/RFFE突面法兰端RING环 W(WEST)西RJ环连接W27S西偏南27度RUN PIPE主管RING-JOINTGASKET(OVAL)环连接椭圆垫S(SOUTH)南WAFER圆片S10中压蒸汽伴热WELD焊接S4低压蒸汽伴热WELDO

14、LET焊接支管台 S63W南偏西63度WN(WELDING NECK)带颈对焊SCH壁厚系列Y-GLOBE VALVEY型截止阀SCRD螺纹SEE ISO接至单线图SHEET页SLIDE LUG导向支耳SLIDE SHOE滑动管托SLIDE STOOL滑动耳轴SLIDE STRAP导向型管夹SMLS无缝SNUBBER减振器SOCKLET承插支管台SOFT IRON软铁SP(SHORT PATTERN)短型SPACER&BLANK插板/垫环SPECIAL特殊的SPECIFICATION规范、标准SPECTACLE BLINDK8字盲板SPIRAL WOUND GASKET缠绕垫片SPRING SUPPORT弹簧架SPT-WDG分体楔式SR(SHORT RADIUS)短半径SS(STAINLESS STEEL)不锈钢STANCHION支柱STD.标准STEAM TRAP蒸汽疏水阀 STOP VALVE切断阀STOPPER SHOE限位型管托STRAIGHT PIPE直管STRAINER过滤器STRAP管夹STRUCTURE 结构STUB END突缘短节STUD BOLT/HEX. NUT双头螺栓/六角螺母SV(SAFETY VALVE)安全阀S