Water Pressure

[KE]

I read a bookley that states "If staic pressure is over 550kpa provisions must be made to reduce it" It talks about water pipes in a house, but what does it mean?

[Jeff Wisnia]

550 kpa (kilopascals) is equivalent to 79.77 pounds per square inch.

If the incoming water pressure is higher than that it's a good idea to install a pressure reducing valve to prevent undue stress on equipment and also "water hammering" and other noises.

Jeff