Fixtures & Water HeatersQuestion 167 of 360
The pressure element of a water heater T&P relief valve must be set to open at a pressure not exceeding which value?
a.100 psi
b.150 psi
c.200 psi
d.75 psi
Explanation
The pressure portion of a listed T&P valve on a domestic water heater is limited to open at no more than 150 psi. This protects the tank, which is typically rated at 150 psi working pressure. Using a higher setting is prohibited.
Law Reference: 2022 California Plumbing Code (CPC) §608.3Practice all 360 questions free — no signup required.
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