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

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

The WATTS Pressure Relief Valve is an ASME Section XIII hot water pressure relief valve with 3/4 in x 3/4 in FNPT connections, constructed in brass. It has a maximum operating pressure of 20 psi (MPN 3/4 354A-030)…

SKU 3G-OTH-442454

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

Watts
Manufacturer Part Number
3/4 354A-030
Type
3/4 in x 3/4 in, Brass
Max. Op Pressure
20 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 3/4 in x 3/4 in FNPT connections, constructed in brass. It has a maximum operating pressure of 20 psi (MPN 3/4 354A-030). 3G Electric interprets your demand for this genuine industrial component, sourcing it across 14 departments with specialist depth in combustion, pumps and controls.

Frequently Asked Questions

What is the Watts 3/4 354A-030 pressure relief valve used for?

The Watts 3/4 354A-030 is an ASME Section XIII hot water pressure relief valve used to protect water heaters and boilers from overpressure. It automatically opens at 20 psi to discharge excess pressure, preventing system damage. Common in residential and commercial hydronic heating systems.

What are the specifications of the Watts 3/4 354A-030?

The Watts 3/4 354A-030 is a brass pressure relief valve with FNPT x FNPT connections, 3/4 in x 3/4 in size, and a maximum operating pressure of 20 psi. It is ASME Section XIII certified for hot water service. The manufacturer part number is 3/4 354A-030.

Where to buy the Watts 3/4 354A-030 worldwide?

You can source the Watts 3/4 354A-030 pressure relief valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Watts valve.

How to install the Watts 3/4 354A-030 pressure relief valve?

Install the Watts 3/4 354A-030 valve on the hot water outlet of the heater or boiler, ensuring the discharge pipe is directed to a safe drain. Use thread sealant on the FNPT connections and tighten to manufacturer torque specs. Never install a shutoff valve between the relief valve and the system.

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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