check valve on the discharge line

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15 years 8 months ago - 15 years 8 months ago #7357 by saqib
check valve on the discharge line was created by saqib
Is there a need to provide check valve on the discharge line of a screw pump (PD Pump)?

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15 years 8 months ago - 15 years 8 months ago #4721 by Jop
Replied by Jop on topic I would say "Yes". I
I would say "Yes". I do not consider a Screw Pump a true Positive displacement pump unless, the pump comes with a built-in check valve.

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15 years 8 months ago - 15 years 8 months ago #4724 by saqib
Replied by saqib on topic Is there any code or
Is there any code or standard or any other technical reference for this?

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15 years 8 months ago - 15 years 8 months ago #4726 by Jop
Replied by Jop on topic None that I know of.
None that I know of.

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15 years 7 months ago - 15 years 7 months ago #4738 by alegvold
Replied by alegvold on topic checks on pump disch
isn't it covered in the API for pumps?

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