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Watts Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron - ASME Section XIII Hot Water Pressure Relief Valves
WattsASME Section XIII Hot Water Pressure Relief Valves

Watts Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron

The WATTS Pressure Relief Valve is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, available in a 1 in x 1 1/4 in iron configuration. It has a maximum operating pressure of 40 psi…

SKU 3G-OTH-442534

Brand
Watts
Item
Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron
Category
ASME Section XIII Hot Water Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
F382870
Type
1 in x 1 1/4 in, Iron
Max. Op Pressure
40 psi
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, available in a 1 in x 1 1/4 in iron configuration. It has a maximum operating pressure of 40 psi (MPN F382870).

Frequently Asked Questions

What is the WATTS F382870 pressure relief valve used for?

The WATTS F382870 is an ASME Section XIII hot water pressure relief valve used in commercial and industrial hydronic systems. It protects boilers, water heaters, and storage tanks from overpressure by automatically releasing water when system pressure exceeds 40 psi, preventing equipment damage and ensuring safe operation.

What are the specifications of the WATTS F382870 pressure relief valve?

The WATTS F382870 is a 1 in x 1 1/4 in FNPTF x FNPTF iron pressure relief valve with a maximum operating pressure of 40 psi. It is ASME Section XIII certified for hot water service. The valve body is constructed from cast iron, and the inlet/outlet connections are female NPT threads.

Where to buy the WATTS F382870 pressure relief valve worldwide?

3G Electric supplies the WATTS F382870 pressure relief valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact our team for a quote and lead time. We source genuine WATTS components for commercial and industrial applications.

How to install a WATTS pressure relief valve?

Install the WATTS valve in the hot water system's top or side tapping, ensuring the discharge pipe is directed to a safe drain location. Use pipe thread sealant on the FNPTF connections. Never install a shutoff valve between the relief valve and the system. Test operation after installation by lifting the lever briefly.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts asme section xiii hot water pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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