Watts Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Brass, 175 psi Max. Op Pressure
The WATTS Pressure Relief Valve (MPN 1/2 530-FP) is a non-code relief valve for air, inert gas, and liquids, with a 1/2 in MNPT x 1/2 in FNPT brass body rated to 175 psi max. operating pressure and 180°F. 3G Electric…
SKU 3G-OTH-437977
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Product Description
The WATTS Pressure Relief Valve (MPN 1/2 530-FP) is a non-code relief valve for air, inert gas, and liquids, with a 1/2 in MNPT x 1/2 in FNPT brass body rated to 175 psi max. operating pressure and 180°F. 3G Electric interprets your demand, sources this genuine OEM part, and supports your application across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is the Watts 1/2 530-FP pressure relief valve used for?
The Watts 1/2 530-FP is a non-code pressure relief valve designed for air, inert gas, and liquid systems. It protects equipment from overpressure up to 175 psi and 180°F, commonly used in industrial piping, compressors, and hydraulic circuits where overpressure protection is required.
What are the specifications of the Watts 1/2 530-FP?
This Watts valve has 1/2 in MNPT x 1/2 in FNPT connections, a brass body, maximum operating pressure of 175 psi, and maximum temperature of 180°F. It is a non-code type for air, inert gas, and liquids. The manufacturer part number is 1/2 530-FP.
Where to buy the Watts 1/2 530-FP worldwide?
3G Electric supplies the Watts 1/2 530-FP pressure relief valve worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this Watts valve to any country.
How to select the correct Watts pressure relief valve for my system?
Select a Watts valve by matching connection size (1/2 in MNPT x FNPT), pressure rating (175 psi max), temperature limit (180°F), and media type (air, inert gas, or liquid). For non-code applications, the 1/2 530-FP is suitable. Always verify system pressure and temperature do not exceed valve ratings.
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3G Electric supplies Watts non-code air, inert gas & liquids pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















