Watts Relief Valve

Start with the ASME code section that governs your vessel, then match relieving capacity to the heat input or maximum flow, and confirm set pressure at or below the vessel's MAWP. Connection size, inlet and outlet ratings, and fluid temperature follow from there. Send us the nameplate data and we will match the Watts model.

Section IV covers heating boilers — hot water, steam and combination temperature-and-pressure valves. Section XIII covers pressure vessels and other applications, including hot water and temperature-and-pressure service. The stamp your inspector or jurisdiction requires determines which Watts valve family you order.

Yes. We ship Watts relief valves worldwide from stock and through sourced supply, covering all 186 catalog lines in this category. Standard items typically move quickly; non-standard set pressures or code-stamped configurations are quoted with a firm lead time once we confirm the specification.