Pilot Operated Check Valve

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FAQ

What is the function of the check valve in the pipeline?

An important role for Fujian Biaoguang valve for check valve in the pipeline:The check valve is divided into three kinds: lift check valve, swing check valve and butterfly check valve. The lift check valve can be divided into two types: vertical check valve and horizontal check valve. Swing check valve is divided into single check valve, double check valve and multi flap type check valve three. Butterfly check valve for the straight through check valve, the above several kinds of check valve in connection form can be divided into threaded connection, check valve, flange connection check valve and weld check valve three kinds.

What type of check valve should be installed before the suction pump?

second body cover seal welded forged steel check valve, connected by this form of valve, the valve body and the valve cover are connected by screw, all welded seal, the advantage of no leakage.

Does the check valve of the flue of the range hood work?

The picture of the check valve of the flue of the range hood is as follows:In addition there is a full sealed flue check valve or smoke exhaust hood treasure is installed in public on the flue pipe valve, exhaust valve to open the hood, hood stop valve is closed, the current Taobao sold this kind of sealed check valve is more, we also evaluated very high. Pictures are as follows:

What is the function of the check valve installed in the water meter before entering the residential water?

Preventing water backflow is also considered from the point of view of water safety.

Can the flue check valve and kitchen check valve protect against odor?

Not really. It depends on what valve it is. If it is a variable pressure air valve, of course, if it is an ordinary other valves, generally only temporary role. Five residential home kitchen platoon smoke system is the application of this variable pressure air valve.

How can the fast closing noise check valve prevent water hammer?

Biaoguan valve that once the pump stopped, check valve spool in the spring or other auxiliary device for double end under the action of force balance in advance to the closed position, can greatly reduce the amount of water and initial water reflux falling height, water hammer force is calculated by gravity superposition, to reduce the amount of water is equal to the reduced gravity, but fell short height reduces the inertia time is relatively reduced speed, and can prevent the formation of destructive or reduce water hammer water hammer.

What is the function of the stop valve and check valve installed on the water supply pipe?

The cut-off valve is a common valves, can also be used for throttling, mainly used to connect or disconnect the line of medium, generally not for regulating flows.

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