This positions the relief valve below the first check valve, enabling the zone to drain through the relief valve outlet.
在这种位置，安全阀位于第一止回阀下面，使得这个区能够通过安全阀出口排放。
Lift check valve with a spring load can withstand light valve flap, flap valve lift is not high.
升降式止回阀使用一个可承受弹簧载荷的轻量阀瓣，阀瓣的升程不高。
Export pump with check valve, it will immediately turn off to prevent reverse flow back high-pressure water pump.
水泵出口装有逆止阀时，它会立即关闭，防止高压水反向流回水泵。
Check valve and relief valve on the output of the gear pump tube had better install a check valve.
止回阀与安全阀在齿轮泵的输出管路上最好安装一个止回阀。
A check valve should be installed on return piping if there will be a pressurized return line or the trap drains to an overhead return line (Fig. B).
如果存在一个压力回路，或者疏水阀排放口位于回路管道的上方，则应该安装一个止回阀(图b)。
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinders. Use a check valve to prevent reverse flow into the cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
Control supply line water pressure. install a soft seated spring loaded check valve upstream of the assembly.
控制供应管道的水压。在总成的上游安装一个软阀座，弹簧负载止回阀。
Each check valve shall be both center and edge-guided to ensure repeatable seating and minimize localized wear.
每个止回阀应该都配置中心和边缘引导，确保可更换阀座密封和最小的局部磨损。
Premature wear and noisy operation or vibration of the moving parts can be avoided by selecting the size of check valve on the basis of flow conditions.
为了避免出现运动部件的过早磨损、噪音或振动运行，就要根据流体状态选择止回阀的通径。
This allows our swing check valve to close completely even when installed in a horizontal pipe run with no flow.
这使得我们的旋启式止回阀无论安装在水平管道还是垂直管道上，都能够实现完全的关闭。
Lastly, it seems that many dealers forget to install the check valve in the air assist line.
最后，它似乎那个很多经销商忘记安装阀门在空中帮助的检查线。
Series 719 Double Check Valve Assembly shall be installed at each noted location.
系列719双止回阀总成应该安装在每个标注的位置上。
The TK-DL can test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies.
TK - DL可以检测压力真空断路阀，减压防回流阀或双止回阀总成。
Designed to test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies, allowing you to eliminate both pressure and differential test gauges.
适用于检测压力真空断路阀，减压防回流阀或双止回阀总成，不再需要压力表和压差表。
It should be noted that the outlet check valve cannot be installed backwards or stuck.
应当注意，出口止回阀不能装反或出现卡死现象。
The role of the check valve to prevent water backflow, with the film door, also do not need a check valve.
逆止阀的作用是防止水倒流，有了拍门后，也就不需要逆止阀了。
It should be noted that exports can not check valve or a card with the anti-death phenomenon.
应当注意，出口止回阀不能装反或出现卡死现象。
You should also install the check valve as far from the pump as possible and at a minimum length of 5 times the pipe diameter.
止回阀应该安装在离泵尽可能远，或至少5倍管道直径的的位置。
Check valve and butterfly valve combinations are very popular; normally a short spool piece is required between the valves.
止回阀与蝶阀的连接是经常发生的事，通常需要在这两种阀门之间加上一节短短的阀槽。
The swing check valve can also be mounted to the vertical position, provided the disc should not reach the valve position.
旋转式止回阀也可以安装在垂直位置，此时阀瓣应该无法达到阀门的位置。
Check them Safety Valves belonging to this type of valve, which includes Swing check valve and lift check valve.
其中止回阀就属于这种类型的阀门，它包括旋启式止回阀和升降式止回阀。
Examine the check valve, cut off valve of auto water supplying system see if open or close correct.
检查自动给水系统的止回阀，截止阀等各阀是否正确开启或关闭。
Series 709 Double Check Valve Assemblies are designed to prevent the reverse flow of polluted water from entering into the potable water system.
系列709双止回阀总成适用于防止受到污染的水回流进入到饮用水系统中。
A check valve that controls fluid flow rates to maintain a predetermined, constant pressure upstream from the valve.
为保持阀的上游的预定不变的压力所用的控制流体流量的一种止回阀。
Check valve should be installed in the bottom of suction pipe of pump to make sure operation is prompt.
泵吸入管路底部应安装截止止回阀，确保其操作灵活。
Double disc check valve consists of body, disc, valve rod and spring and other parts. The valve is designed with slim light weight.
双瓣止回阀主要由阀体、阀瓣、阀杆及弹簧等重要零件组成，并采用薄型轻巧设计。
It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing.
其特点在于第一止回阀采用一个橡胶阀瓣密合在相配的橡胶部件上，确保紧密的关闭。
It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing.
其特点在于第一止回阀采用一个橡胶阀瓣密合在相配的橡胶部件上，确保紧密的关闭。
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