|Posted by hj on May 15, 2003 at 09:56:32:|
|In response to Re: PRV before pump inlet?|
You never restrict the flow to the inlet of any pump. Doing so will cause cavitation and damage/destroy the pump.
: I have a 0.2 bar (2M head) cold water supply and a 2.1 bar (maximum) hot water supply. I also have a shower pump/mixer that has an inlet min-max range of 0.1 bar to 1 bar.
: My question is this: is it advisable to use a Pressure Reducing Valve (PRV) to reduce the hot supply pressure to, say 0.5 bar, before the inlet to the pump?
: My worry is that the draw from the pump will fight with the PRV and cause problems, and the shower unit was a bit too expensive to risk without advice!