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Watts Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/2 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 1/4 in x 1 1/2 in, Iron

The WATTS Pressure Relief Valve (MPN 0383308) is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, available in a 1 1/4 in x 1 1/2 in iron configuration and a maximum operating…

SKU 3G-OTH-442523

Brand
Watts
Item
Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/2 in, Iron
Category
ASME Section XIII Hot Water Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
0383308
Type
1 1/4 in x 1 1/2 in, Iron
Max. Op Pressure
75 psi
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve (MPN 0383308) is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, available in a 1 1/4 in x 1 1/2 in iron configuration and a maximum operating pressure of 75 psi.

Frequently Asked Questions

What is the Watts 0383308 pressure relief valve used for?

The Watts 0383308 is an ASME Section XIII hot water pressure relief valve used to protect water heaters and boilers from overpressure. It automatically opens when system pressure exceeds 75 psi, preventing equipment damage. Common in commercial and industrial hot water systems.

What are the specifications of the Watts 0383308 pressure relief valve?

The Watts 0383308 is a 1 1/4 in x 1 1/2 in FNPTF x FNPTF iron pressure relief valve with a maximum operating pressure of 75 psi. It is ASME Section XIII certified for hot water service. The valve body is constructed from cast iron for durability.

Where to buy the Watts 0383308 pressure relief valve worldwide?

3G Electric supplies the Watts 0383308 pressure relief valve worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this ASME Section XIII valve.

How to install a Watts pressure relief valve?

Install the Watts valve in the hot water system's discharge line with the arrow on the body pointing in the flow direction. Ensure the discharge pipe is sized to handle full flow and terminates in a safe location. 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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