Watts Pressure Relief Valve: FNPTF x FNPTF, 1 1/2 in x 2 in, Iron
SKU 3G-OTH-429330
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Frequently Asked Questions
What is a Watts pressure relief valve used for?
A Watts pressure relief valve protects hot water heating systems from overpressure. It automatically opens when pressure exceeds 75 psi, preventing equipment damage. This ASME Section IV valve is commonly installed on boilers and storage tanks in commercial and industrial facilities.
What are the specifications of the Watts F383742 pressure relief valve?
The Watts F383742 is a 1 1/2 in x 2 in FNPTF x FNPTF iron pressure relief valve with a maximum operating pressure of 75 psi. It is ASME Section IV rated for hot water service. The iron body provides durability in high-temperature industrial applications.
Where to buy Watts pressure relief valves worldwide?
3G Electric supplies Watts pressure relief valves like the F383742 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial sourcing partner, we provide genuine Watts parts with reliable lead times and technical support.
How to install a Watts pressure relief valve?
Install the Watts valve in the hot water system's discharge piping with the arrow pointing away from the vessel. Ensure the discharge line is no smaller than the valve outlet and terminates safely. Never install a shutoff valve between the relief valve and the system.
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3G Electric supplies Watts asme section iv hot water pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














