Quick navigator: Water hammer prevention

The following is a list of frequently received questions and inquiries, and corresponding solutions we provide.
By clicking the product name herein, you can jump to the details of the product.

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Q:

Is there a check valve that can completely prevent water hammer if a pump stops due to power failure?

A:

Non-Water Hammer Check Valve SL-SN, and other

Q:

Is there a check valve that does not cause delay in shutoff without added external force?

A:

Non-Water Hammer Check Valve SL-SN, and other

Q:

Though cheap resin piping is preferable, water hammer will cause problems. Are there any check valves for preventing water hammer damage?

A:

Non-Water Hammer Check Valve SL-SN, Wafer-Type Check Valve SL-SW, and other

Q:

Particulate increases due to water hammer when the pump stops despite clean pipes. Are there any countermeasures?

A:

The clean type Non-Water Hammer Check Valve SL-UC can solve the problem.

Q:

The check valve is noisy when it shuts off. Is there a quiet check valve?

A:

Non-Water Hammer Check Valve SL-SN, and other

Q:

The check valve dashpot oil leaks. Are there any countermeasures?

A:

Dashpot Type Non-Water Hammer Check Valve SL-SN-B and other can solve the problem as their dashpots are free from oil leakage.

Q:

The check valve easily corrodes in seawater. Are there any countermeasures?

A:

Non-Water Hammer Check Valve made of Seawater Resistant Stainless Steel YST130N can solve the problem.

Q:

The rotary shaft of the swing check valve is easily damaged. Is there a damage-resistant check valve?

A:

Non-Water Hammer Check Valve SL-SN and other have structure which prevents damage to the shaft.

Q:

Is there a check valve that can detect non-feed water condition for preventing a pump from dry operation?

A:

Non-Water Hammer Check Valve SL-SNP and other with No-Feed Detector

Q:

Surge tanks for preventing surge in the piping are expensive. Are there any inexpensive check valves for replacing the surge tank?

A:

Non-Water Hammer Check Valve SL-SN and other are available. Surge tank is not required.


YOKOTA will continue to devote its energies to the development of products as a fluid control solutions company. If you are telling yourself, "What we need is......Can we do this?", do not hesitate to contact us with questions or inquiries.


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