Mechanical Check Valve

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Portland®High Temperature Air Lock Valve

FAQ

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Check valve (One-way valve): check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline. Pump water off the bottom valve check valve also belongs to class.The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve.

Which type of check valve should be selected for vertical pipes?

The check valve on the vertical pipeline shall ensure that the spool goes back to its position when the fluid is stationary and reversed.Optional:Butterfly check valves, pipes of low pressureVertical lift check valve, high pressure resistance, good tightnessSwing check valve: flow must be from the next up, the pipe diameter is unlimited

Does the regulator have a check action? If yes, can I use it as a check valve?

No, it can only be used for regulating pressure. It can not replace the check valve.

God, can you explain to me in detail why?

Pump outlet, check valve, gate valve.Gate valve plays a regulatory role, is the main pipe. Such a sequence can ensure that the water flow during power failure does not cause damage to the gate valve.

What does the number 16 on the check valve mean?

This is the pressure level of the valve, which represents 16Kg, which is used for piping pressure less than this pressure.

Is it necessary to install a check valve in the piston refrigeration compressor?

Following chart:Turn left and turn right |?Such arrangements because when the piston machine more than 2 units installed on the same system, if there is a part of the unit stops working in another part of the unit, it will cause the exhaust side wall will refrigerant condensation in the exhaust no work unit tube, the liquid refrigerant condensation along the exhaust the accumulation of down pipe in the exhaust pipe, may cause the cylinder inlet fluid or startup are high pressure, easy to cause the damage of the compressor. Therefore, when multiple compressors are connected in parallel, the check valve must be installed at the top of the exhaust pipe. Not only the piston machine, screw machine should also be installed in the exhaust pipe, otherwise the oil inside is all refrigerant liquid, leading to running oil, there have been such problems in the project.

Swing check valve can prevent any sewer defection

Sure。Swing check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline.

Is the check valve behind or behind the gate valve? Why?

Thank youPlease install it in frontWhat about the front?