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Watts Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Brass, 175 psi Max. Op Pressure - Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
WattsNon-Code Air, Inert Gas & Liquids Pressure Relief Valves

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-C) is a non-code relief valve for air, inert gas, and liquids, with 1/2 in MNPT x FNPT connections in brass, rated for 175 psi maximum operating pressure and 180°F.

SKU 3G-OTH-437953

Also listed as: 12530C · 1 2 530 C · 1-2-530-C

Brand
Watts
Item
Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Brass, 175 psi Max. Op Pressure
Category
Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
Available to Order
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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
1/2 530-C
Type
1/2 in x 1/2 in, Brass, 180°F
Max. Op Pressure
175 psi

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

Product Description

The WATTS Pressure Relief Valve (MPN 1/2 530-C) is a non-code relief valve for air, inert gas, and liquids, with 1/2 in MNPT x FNPT connections in brass, rated for 175 psi maximum operating pressure and 180°F.

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 a Watts 1/2 530-C pressure relief valve used for?

The Watts 1/2 530-C is a non-code pressure relief valve designed for air, inert gas, and liquid systems. It protects equipment from overpressure up to 175 psi at 180°F. Common applications include industrial piping, compressors, and hydraulic circuits where reliable overpressure protection is needed.

What are the specifications of the Watts 1/2 530-C pressure relief valve?

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-C.

Where to buy a Watts 1/2 530-C pressure relief valve worldwide?

3G Electric supplies the Watts 1/2 530-C pressure relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial sourcing partner, we provide genuine Watts components for your pressure relief needs.

How to install a Watts 1/2 530-C pressure relief valve?

Install the Watts 1/2 530-C in a vertical position with the inlet connected to the system. Apply thread sealant to the MNPT connection and tighten to manufacturer torque specs. Ensure the discharge is directed to a safe area. Never exceed 175 psi or 180°F. Test after installation.

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 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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
WATTS Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Brass, 175 psi Max. Op Pressure, 180°F (MPN 1/2 530-FP)
Watts
WATTS Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Brass, 175 psi Max. Op Pressure, 180°F (MPN 1/2 530-FP)
WATTS Pressure Relief Valve: MNPT x FNPT, 3/4 in x 1/2 in, Brass, 175 psi Max. Op Pressure, 180°F (MPN 3/4 530-C)
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WATTS Pressure Relief Valve: MNPT x FNPT, 3/4 in x 1/2 in, Brass, 175 psi Max. Op Pressure, 180°F (MPN 3/4 530-C)
WATTS Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Bronze, 300 psi Max. Op Pressure, 180°F (MPN 1/2 53L-150)
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WATTS Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Bronze, 300 psi Max. Op Pressure, 180°F (MPN 1/2 53L-150)
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WATTS Pressure Relief Valve: MNPTF x FNPTF, 1/2 in x 1/2 in, Brass, 125 psi Max. Op Pressure, 180°F (MPN 1/2 LF53-125)
WATTS Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure, 180°F (MPN 3/4 LF53-125)
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WATTS Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure, 180°F (MPN 3/4 LF53-125)
WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in Connection Size, Bronze (MPN 1/2 1XL-150210)
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WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in Connection Size, Bronze (MPN 1/2 1XL-150210)

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