26 13. 工艺管道图例 ] (AG)SPEC (UG)SPEC FUTURE LINE 预留管线 JACKETED LINE 夹套管 VENDOR PACKAGE BOUNDARY 供货范围界限 BATTERY LIMITS(OSBL) 装置边界线(外围) B GATE 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 管材材质界限 27 DIAPHRAGM VALVE 膜板阀 GLOBE VALVE 截止阀 NEEDLE VALVE 针式阀 PLUG VALVE 旋塞阀 BALL VALVE 球阀 CHECK VALVE 单向阀、止回阀 STOP CHECK VALVE (BOILER NON
26 13. 工艺管道图例 ] (AG)SPEC (UG)SPEC FUTURE LINE 预留管线 JACKETED LINE 夹套管 VENDOR PACKAGE BOUNDARY 供货范围界限 BATTERY LIMITS(OSBL) 装置边界线(外围) B GATE 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 管材材质界限 27 DIAPHRAGM VALVE 膜板阀 GLOBE VALVE 截止阀 NEEDLE VALVE 针式阀 PLUG VALVE 旋塞阀 BALL VALVE 球阀 CHECK VALVE 单向阀、止回阀 STOP CHECK VALVE (BOILER NON