WATTS RELIEF VALVE: NPTF x NPTF, 3/4 in x 3/4 in, Iron, 40 psi Max. Op Pressure
The Watts 3/4 in x 3/4 in NPTF x NPTF Relief Valve (MPN F358551) is an ASME Section XIII hot water pressure relief valve constructed of iron with a maximum operating pressure of 40 psi and an overall height of 3 1/2…
SKU 3G-OTH-442529
Also listed as: F 358551 · F-358551
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The Watts 3/4 in x 3/4 in NPTF x NPTF Relief Valve (MPN F358551) is an ASME Section XIII hot water pressure relief valve constructed of iron with a maximum operating pressure of 40 psi and an overall height of 3 1/2 in. 3G Electric interprets demand for this genuine Watts safety component across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is the Watts F358551 relief valve used for?
The Watts F358551 is an ASME Section XIII hot water pressure relief valve used in hydronic heating systems and water heaters. It automatically opens to discharge water when system pressure exceeds 40 psi, preventing overpressure damage. Common applications include commercial and residential boiler installations.
What are the specifications of the Watts F358551 relief valve?
The Watts F358551 has a 3/4 in NPTF x 3/4 in NPTF connection, iron body, 40 psi maximum operating pressure, and 3 1/2 in overall height. It is an ASME Section XIII hot water pressure relief valve. The manufacturer part number is F358551.
Where to buy the Watts F358551 relief valve worldwide?
3G Electric supplies the Watts F358551 relief valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this ASME-rated valve to any country.
How to install the Watts F358551 relief valve?
Install the Watts F358551 relief valve in the hot water system discharge line with the inlet connected to the system and outlet open to atmosphere. Ensure no shutoff valve is placed between the valve and system. Follow local plumbing codes and ASME guidelines. Use thread sealant on NPTF connections and test after installation.
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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.
