The Ontario Building Code | Static Pressure
7.6.3.3. Static pressure
(1) Where the static pressure at any fixturemay exceed 550 kPa, a pressure reducing valve conforming to Article 7.2.10.12. shall be installed to limit the maximum static pressure at the fixture to 550 kPa.
In Plain Language
Static pressure in the water distribution system must meet the requirements set out in this article, ensuring enough pressure reaches every fixture without being so high it damages piping or fittings.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.