Pressure Reducing Valves (PRV)

I have previously talked about Noises in Pipes and Dealing with Water Hammer, but neglected to mention PRV’s.

Frequently people think high water pressure to be a good. In fact it can be a big problem. Too much water pressure in a domestic system can:

  • Result in toilet systems leaking,
  • Put extra stress on plumbing joints, taps and water heaters,
  • Increase the risk of washing machine/dishwasher hoses bursting,
  • Cause water hammer issues.
Caleffi PRV

Caleffi PRV

Installing a PRV can be a  simple way of dealing with these problems.

PRVs automatically control the water pressure so effectively reducing a high incoming pressure to a lower, more acceptable pressure. Used in the home it can help to save water and increase the longevity of household appliances.

A valve for a domestic system will cost around $60 plus installation.

Valves are typically set by the manufacturer at a pressure of 500kPa normally suitable for most household. If necessary the pressure can be further reduced.


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