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WattsASME Section XIII Hot Water Pressure Relief Valves

WATTS RELIEF VALVE: NPTF x NPTF, 3/4 in x 3/4 in, Iron, 20 psi Max. Op Pressure

The Watts F358553 is an ASME Section XIII hot water pressure relief valve with 3/4 in NPTF x NPTF connections, constructed of iron. It has a maximum operating pressure of 20 psi and an overall height of 3 1/2 in (MPN…

SKU 3G-OTH-442532

Also listed as: F 358553 · F-358553

Brand
Watts
Item
RELIEF VALVE: NPTF x NPTF, 3/4 in x 3/4 in, Iron, 20 psi Max. Op Pressure
Category
ASME Section XIII Hot Water Pressure Relief Valves
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Watts
Manufacturer Part Number
F358553
Type
3/4 in x 3/4 in, Iron
Overall Ht
3 1/2 in
Max. Op Pressure
20 psi

Technical Documents

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

Product Description

The Watts F358553 is an ASME Section XIII hot water pressure relief valve with 3/4 in NPTF x NPTF connections, constructed of iron. It has a maximum operating pressure of 20 psi and an overall height of 3 1/2 in (MPN F358553).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Watts F358553 relief valve used for?

The Watts F358553 is an ASME Section XIII 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. Common in commercial and industrial hot water systems.

What are the specifications of the Watts F358553 relief valve?

The Watts F358553 is a 3/4 in NPTF x NPTF iron relief valve with a maximum operating pressure of 20 psi. Overall height is 3 1/2 in. It is ASME Section XIII rated for hot water service. The brand is Watts, MPN F358553.

Where to buy the Watts F358553 relief valve worldwide?

3G Electric supplies the Watts F358553 relief valve worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this Watts valve to any country.

How to install the Watts F358553 relief valve?

Install the Watts F358553 relief valve in the hot water system discharge line, ensuring the valve body is upright and the discharge pipe is directed to a safe drain. Use thread sealant on NPTF connections. Do not cap or plug the outlet. Follow local codes and manufacturer guidelines.

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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