CQ螺纹球阀 CQ Thread Ball Valves
L形三通式 L-pattern three way
T形三通式 T-pattern three way
安全阀 Safety valve
暗杆闸阀 Inside screw nonrising stem type gate valve
百叶窗 ; 闸板 shutter
百叶窗式报警阀 ; 信号阀 ; 脉冲阀 sentinel valve
背压调节阀 back pressure regulating valve
背压率 Rate of back pressure
本体阀杆密封 body stem seal
波纹管阀 Bellows valves
波纹管密封阀 bellow sealed valve
波纹管密封式 Bellows seal type
波纹管平衡式安全阀 Bellows seal balance