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Watts Pressure Relief Valve: FNPT x FNPT, 3/4 in x 3/4 in, Bronze - ASME Section IV Hot Water Pressure Relief Valves
WattsASME Section IV Hot Water Pressure Relief Valves

Watts Pressure Relief Valve: FNPT x FNPT, 3/4 in x 3/4 in, Bronze

The WATTS 3/4 335M2-030 is an ASME Section IV hot water pressure relief valve with 3/4 in x 3/4 in FNPT connections, constructed in bronze, and rated for a maximum operating pressure of 20 psi.

SKU 3G-OTH-429346

Brand
Watts
Item
Pressure Relief Valve: FNPT x FNPT, 3/4 in x 3/4 in, Bronze
Category
ASME Section IV Hot Water Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
3/4 335M2-030
Type
3/4 in x 3/4 in, Bronze
Max. Op Pressure
20 psi
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS 3/4 335M2-030 is an ASME Section IV hot water pressure relief valve with 3/4 in x 3/4 in FNPT connections, constructed in bronze, and rated for a maximum operating pressure of 20 psi.

Frequently Asked Questions

What is the Watts 3/4 335M2-030 pressure relief valve used for?

The Watts 3/4 335M2-030 is an ASME Section IV hot water pressure relief valve used to protect water heaters and boilers from overpressure. It automatically opens at its set pressure to discharge excess water, preventing system damage. Typical applications include commercial and residential hydronic heating systems.

What are the specifications of the Watts 3/4 335M2-030 pressure relief valve?

This Watts valve has FNPT x FNPT connections, 3/4 in x 3/4 in size, and a bronze body. Its maximum operating pressure is 20 psi. It is ASME Section IV certified for hot water service. The manufacturer part number is 3/4 335M2-030.

Where to buy the Watts 3/4 335M2-030 pressure relief valve worldwide?

3G Electric supplies the Watts 3/4 335M2-030 pressure relief valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote for your region.

How to install a Watts 3/4 335M2-030 pressure relief valve?

Install the Watts 3/4 335M2-030 valve in the hot water outlet line of the heater or boiler, with the discharge pipe directed to a safe drain. Ensure the valve is upright and not subjected to freezing. Follow local codes and the manufacturer's instructions for proper sizing and piping.

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 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.

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