In order to accomplish the performance research on a spherical check valve with preventing water hammer and energy-saving,a numerical simulation for it s internal flow field by using Fluent software is conducted.
为完成对防水锤节能球形止回阀的性能研究,利用Fluent软件对其内流场进行了数值模拟,并对计算结果进行了全面的分析,同时与一般的止回阀进行对比,从水力性能上分析出该球形止回阀具有水力损失小、具有较好的防水锤和节能效果等优点,为管路系统中阀门的选择,水锤的预防提供参考资料。
ball check valve
球形止回阀（附有球阀和阀座的阀门,液体只能单方向通过）
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 1;Check Valve 2;Check Valve 3;Screw-down
止回阀 1;止回阀 2;止回阀 3;旋拧阀
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。
Marine cast steel erect check valves
GB/T11696-1996船用铸钢竖形止回阀
"Mainly used in gate, globe, and check valves for applications up 850H, and in one-, two-, and three-piece ball valves."
主要使用在温度高达850℉的闸阀、截止阀和止回阀,以及整体、对分式和三件装的球阀上。
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）。
The check valves shall be modular and shall seal to the main valve body by the use of an O-ring.
止回阀应该是模块化，并通过一个O形环密封连接到主阀体上。
Valve body – #1 ball check or LR switch valve sticking (may also set code 50 or give no reverse)
阀门体–＃１球状止回阀或者ＬＲ开关阀门黏滞（可能也设置代码５０或者不倒退）
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
Pacific Valves' unique injector has a double ball check protection against leakage and a positive shut-off internal valve.
美国太平洋阀门独特的注入器具有双球止回保护，防止泄露，并保护阀门内部活动部件。
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。