Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 1 in, Iron - ASME Section XIII Hot Water Pressure Relief Valves
WattsASME Section XIII Hot Water Pressure Relief Valves

Watts Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 1 in, Iron

The WATTS Boiler Pressure Relief Valve (MPN F382008) is an ASME Section XIII hot water pressure relief valve with 3/4 in x 1 in FNPTF connections in iron, rated for 20 psi maximum operating pressure. 3G Electric…

SKU 3G-OTH-442470

Brand
Watts
Item
Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 1 in, Iron
Category
ASME Section XIII Hot Water Pressure Relief Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
F382008
Type
3/4 in x 1 in, Iron
Max. Op Pressure
20 psi
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Boiler Pressure Relief Valve (MPN F382008) is an ASME Section XIII hot water pressure relief valve with 3/4 in x 1 in FNPTF connections in iron, rated for 20 psi maximum operating pressure. 3G Electric interprets this demand and delivers it across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like Watts, Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump and FBR.

Frequently Asked Questions

What is the Watts boiler pressure relief valve used for?

The Watts boiler pressure relief valve is used to protect hot water heating systems from overpressure. It automatically opens when system pressure exceeds 20 psi, preventing boiler damage. Common in residential and commercial hydronic heating applications.

What are the specifications of the Watts F382008 pressure relief valve?

The Watts F382008 is an ASME Section XIII hot water pressure relief valve with 3/4 in FNPTF inlet and 1 in FNPTF outlet. It has a maximum operating pressure of 20 psi and is constructed from iron. The valve is designed for boiler overpressure protection.

Where to buy Watts pressure relief valves worldwide?

3G Electric supplies Watts pressure relief valves worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on the Watts F382008 valve.

How to install a Watts boiler pressure relief valve?

Install the Watts valve in the boiler outlet or hot water supply line. Ensure the discharge pipe is directed to a safe drain and is not blocked. Use thread sealant on the FNPTF connections. Never install a shutoff valve between the boiler and relief valve.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 1 in, Iron, 40 psi Max. Op Pressure (MPN F382328). Key specifications — Brand: WATTS.
Watts
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 1 in, Iron, 40 psi Max. Op Pressure (MPN F382328). Key specifications — Brand: WATTS.
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 1/2 in x 2 in, Iron, 20 psi Max. Op Pressure (MPN F383542). Key specifications — Brand: WATTS.
Watts
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 1/2 in x 2 in, Iron, 20 psi Max. Op Pressure (MPN F383542). Key specifications — Brand: WATTS.
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/2 in, Iron, 8 3/4 in Overall Ht (MPN F383484). Key specifications — Brand: WATTS.
Watts
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/2 in, Iron, 8 3/4 in Overall Ht (MPN F383484). Key specifications — Brand: WATTS.
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 20 psi Max. Op Pressure (MPN F274428). Key specifications — Brand: WATTS.
Watts
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 20 psi Max. Op Pressure (MPN F274428). Key specifications — Brand: WATTS.
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron, 20 psi Max. Op Pressure (MPN F382570). Key specifications — Brand: WATTS.
Watts
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron, 20 psi Max. Op Pressure (MPN F382570). Key specifications — Brand: WATTS.
WATTS Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron, 40 psi Max. Op Pressure (MPN F382870). Key specifications — Brand: WATTS.
Watts
WATTS Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron, 40 psi Max. Op Pressure (MPN F382870). Key specifications — Brand: WATTS.

More from Watts

View all Watts parts →
WATTS Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy, 5 3/4 in Overall Ht (MPN 0121494). Key specifications — Brand: WATTS.
Watts
WATTS Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy, 5 3/4 in Overall Ht (MPN 0121494). Key specifications — Brand: WATTS.
WATTS Relief Valve: FNPT x FNPT, 1 in x 1 in, Bronze, 94 psi Max. Op Pressure, 5 3/4 in Overall Ht (MPN 1 174A 125 FS). Key specifications — Brand: WATTS.
Watts
WATTS Relief Valve: FNPT x FNPT, 1 in x 1 in, Bronze, 94 psi Max. Op Pressure, 5 3/4 in Overall Ht (MPN 1 174A 125 FS). Key specifications — Brand: WATTS.
WATTS Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/4 in, Copper Silicon Alloy (MPN F121524). Key specifications — Brand: WATTS.
Watts
WATTS Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/4 in, Copper Silicon Alloy (MPN F121524). Key specifications — Brand: WATTS.
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/2 in, Iron, 8 3/4 in Overall Ht (MPN 0383310). Key specifications — Brand: WATTS.
Watts
WATTS Boiler Pressure Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/2 in, Iron, 8 3/4 in Overall Ht (MPN 0383310). Key specifications — Brand: WATTS.
WATTS Pressure Relief Valve: NPTF x NPTF, 3/4 in x 3/4 in, Bronze, 125 psi Max. Op Pressure (MPN 0369010). Key specifications — Brand: WATTS.
Watts
WATTS Pressure Relief Valve: NPTF x NPTF, 3/4 in x 3/4 in, Bronze, 125 psi Max. Op Pressure (MPN 0369010). Key specifications — Brand: WATTS.
WATTS Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy, 150 psi Max. Op Pressure (MPN 1 LF174A 150 FS). Key specifications — Brand: WATTS.
Watts
WATTS Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy, 150 psi Max. Op Pressure (MPN 1 LF174A 150 FS). Key specifications — Brand: WATTS.
WATTS Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron, 75 psi Max. Op Pressure (MPN 1 740 030 FS). Key specifications — Brand: WATTS.
Watts
WATTS Relief Valve: FNPTF x FNPTF, 1 in x 1 1/4 in, Iron, 75 psi Max. Op Pressure (MPN 1 740 030 FS). Key specifications — Brand: WATTS.
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 100 FS). Key specifications — Brand: WATTS.
Watts
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 100 FS). Key specifications — Brand: WATTS.