Pump minimum recycle
Pump minimum recycle
(OP)
Hello All,
Why we use minimum recycle in the downstream side of the centrifugal pumps.
Is it necessary to have that on the reciprocating pumps?
Regards
Pons
Why we use minimum recycle in the downstream side of the centrifugal pumps.
Is it necessary to have that on the reciprocating pumps?
Regards
Pons





RE: Pump minimum recycle
Unlike a centrifugal pumps, positive displacement pumps have no shutoff head. They deliver constant flow regardless of head. They should never be deadheaded. They will continue to try and produce flow until something breaks. That's why positive displacement pumps usually have integral pressure relief or some type of relief valve setup in the discharge line.
I hope this helps.
RE: Pump minimum recycle
Also would like to know the minimum flow line should be after the check valve or before the check valve?
Using RO will solve the issue instead of a control valve?
Would appreciate your reply.
Many Thanks
Pons
RE: Pump minimum recycle
RE: Pump minimum recycle
Please let me know guidance to size the RO and Control valve coming on the pump minimum recyle line.
Thanks
Pons
RE: Pump minimum recycle
Jim