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1、13. 工艺管道图例FUTURE LINE 预留管线BBATTERY LIMITS(OSBL) 装置边界线（外围）VENDOR PACKAGE BOUNDARY 供货范围界限JACKETED LINE 夹套管管材材质界限(UG)SPEC(AG)SPECGATE VALVE 闸阀VENTED GATE VALVE (VENT DIRECTION SHOWN)放空闸阀（放空方向）VALVE WITH BLIND OR PLUG带有盲板或丝堵的阀门BUTTERFLY VALVE 蝶阀DIAPHRAGM VALVE 膜板阀GLOBE VALVE 截止阀NEEDLE VALVE 针式阀 PLUG VAL
2、VE 旋塞阀BALL VALVE 球阀CHECK VALVE 单向阀、止回阀STOP CHECK VALVE (BOILER NON-RETURN VALVE)截止止回阀(锅炉止回阀)THREE WAY VALVE 三通阀FOUR WAY VALVE 四通阀MULTI PORT VALVE 多通阀ANGLE VALVE 角阀DUAL TANDEM BLOWDOWN VALVE 双排污阀RAM TYPE VALVE (SPECIALTY ITMEINTERLOCKED VALVES (MECHANICAL LINK)互锁阀（机械连接）SPRING LOADED QUICK OPENING OR
3、CLOSING VALVE弹簧锁紧快速开启/关闭阀SLIDE VALVE 滑阀Y-TYPE GLOBE VAVLE Y-型截止阀AUTOMATIC RECIRCULATION VALVE自动循环阀QUICK OPENING OR CLOSING VALVE快速开启/关闭阀VALVE WITH BODY CAVITY RELIEF OR BODY BLEED CONNECTION 阀体带倒淋的阀MAIN FEED/PRODUCT 进料/产品流向BLIND FLANGE 盲板法兰CONTINUITY ARROW 连续箭头PIPE CAP (WELDED) 管帽（焊接）PIPE CAP 管帽REDU
4、CTION IN LINE SIZE 异径管TEMPORARY STRAINER 临时过滤器CONE TYPE STRAINER 锥形过滤器T-TYPE STRAINER T-型过滤器Y-TYPE STRAINER Y-型过滤器REMOVABLE SPOOL 可拆短节SPACER FOR BLIND 环形盲板LINE BLIND （SPADE） 盲板REVERSIBLE BLIND （OPEN） 8字盲板（开）（FIGURE EIGHT） REVERSIBLE BLIND （CLOSE） 8字盲板（关）（FIGURE EIGHT） SPEC BREAK 间隔XXX-PIPING SPECMIN
5、IMUM DISTANCE 最小距离DUCT OR STACK DAMPER 管道/烟道挡板OPEN SERVICE DRAIN 不带盖的地漏XX-SERVICE SYMBOLCLOSE SERVICE DRAIN 带盖的地漏XX-SERVICE SYMBOLATMOSPHERIC VENT 大气放空FIRE HYDRANT 消防龙头FIRE MONITOR 火灾监控器FIRE HYDRANT WITH PUMPER CONNECTION带动力的消防龙头HOSE HOUSE 软管站HOSE REEL消防盘管VALVE WITH INDICATOR POST带指示装置的阀门ELEVATED OS
6、CILLATING MONITORDELUGE VALVE 溢流阀OPEN SPRINKLER 开放的喷淋器WATER SPRAY NOZZLE 喷雾管嘴PILOT SPRINKLER 动力喷淋器FLANGED CONNECTION 法兰连接HOSE CONNECTION 软管连接ROD OUT CONNECTIONCLEAN OUT CONNECTION （FLUSHING）排净连接（冲洗）ORIFICE SWAGE 孔板INSULATED FLANGED JOINT 保温的法兰连接FLEXIBLE HOSE 柔性软管EXPANSION JOINT 波纹膨胀节INLINE MIXER 管道搅
7、拌器MIXER “T” T型搅拌器 HYDROMETER POT 液体比重计VORTEX BREAKER (容器底部流出口处)防涡器 EXHAUST HEAD 排气装置STEAM TRAP（NON PROCESS） 凝水器EDUCTOR OR EJECTOR 喷射器 SAFETY SHOWER 安全淋浴器UTILITY STATION 公用站VENT STACK 放空通道LINE FILTER/BASKET FILTER 篮式过滤器SILENCER 消音器LOW DB NOISE CARTRIDGE 降噪器 AIR FILTER WITH HOOD 空气过滤器FLAME ARRESTOR 阻火器GRADESLOPESLOPE INDICATION 坡向TRENCH 排水沟