Marine flanged cast iron single arrangement suctio stop check box valve
GB/T1855-1993船用法兰铸铁单排吸入截止止回阀箱
Check Valve 1;Check Valve 2;Check Valve 3;Screw-down
止回阀 1;止回阀 2;止回阀 3;旋拧阀
Type of valve- gate, globe, check, etc.
阀门种类：闸阀，截止阀，止回阀，蝶阀，球阀，等等。
check-valve mounting bracket
止回阀(装置)托架
dual way check valve
双向止回阀（双通单向阀）
Now bring the check assembly through the check retaining wall.
现在将止回阀通过止回阀护壁取出。
This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
General purpose industrial valves-Casting iron globe valves and lift check valves
GB/T12233-1989通用阀门铁制截止阀与升降式止回阀
Do check valves operate properly?
止回阀是否工作正常?
inside screw lift check valve
内螺纹升降式止回阀
detector check valve meter
探测器止回阀的水表
Use check valves to prevent reverse flow in to the cylinder.
使用止回阀，防止回流入钢瓶。
Use a check valve to prevent reverse flow into the cylinder.
采用止回阀，防止回流入钢瓶。
Our main products include steel gate valve, globe valve, check valve, ball valves, forged steel flange, pipeline strainer and so on.
主要有：各种材质闸阀、截止阀、止回阀、球阀、法兰及过滤器等。
A pressure differential relief valve is located in a zone between the check valves.
压差安全阀位于止回阀之间的区内。
The check valve seats shall be of molded thermoplastic construction.
止回阀阀座应该是模制热塑塑料结构。
General purpose industrial valves--Cast iron swing check valves
GB/T13932-1992通用阀门铁制旋启式止回阀
General purpose industrial valves-Steel swing check valves
GB/T12236-1989通用阀门钢制旋启式止回阀