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Watts Calibrated Adjustable Relief Valve: MNPT x FNPT, 3/4 in x 1/2 in, Brass - Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
WattsNon-Code Air, Inert Gas & Liquids Pressure Relief Valves

Watts Calibrated Adjustable Relief Valve: MNPT x FNPT, 3/4 in x 1/2 in, Brass

The WATTS Calibrated Adjustable Relief Valve (MPN 3/4 LF 530-C STD) is a non-code pressure relief valve for air, inert gas, and liquids. This brass valve features a 3/4 in MNPT x 1/2 in FNPT connection and operates…

SKU 3G-OTH-437830

Brand
Watts
Item
Calibrated Adjustable Relief Valve: MNPT x FNPT, 3/4 in x 1/2 in, Brass
Category
Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
3/4 LF 530-C STD
Type
3/4 in x 1/2 in, Brass, 0°F to 180°F
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Calibrated Adjustable Relief Valve (MPN 3/4 LF 530-C STD) is a non-code pressure relief valve for air, inert gas, and liquids. This brass valve features a 3/4 in MNPT x 1/2 in FNPT connection and operates in temperatures from 0°F to 180°F.

Frequently Asked Questions

What is a Watts calibrated adjustable relief valve used for?

This Watts 3/4 LF 530-C STD valve protects systems handling air, inert gas, or liquids from overpressure. It is calibrated and adjustable, making it suitable for industrial plumbing, HVAC, and process lines where precise pressure relief is required up to 180°F.

What are the specifications of the Watts 3/4 LF 530-C STD relief valve?

The Watts 3/4 LF 530-C STD is a non-code relief valve with 3/4 in MNPT x 1/2 in FNPT connections, made of brass. It operates from 0°F to 180°F and is designed for air, inert gas, and liquids. The adjustable set point allows field calibration.

Where to buy Watts calibrated adjustable relief valves worldwide?

3G Electric supplies the Watts 3/4 LF 530-C STD calibrated adjustable relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this brass relief valve.

How to install a Watts adjustable relief valve?

Install the Watts 3/4 LF 530-C STD in a vertical position with the inlet connected to the system. Use thread sealant on the MNPT connection. Adjust the set pressure using the calibrated cap while the system is depressurized. Test after installation to confirm proper relief.

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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