Starparts Double Safety Check Valve 3/8" Right Hand Thread Nut To 1/4" Hosetail

The Double Safety Check Valve 3/8" Right Hand Thread Nut to 1/4" Hosetail is a specialist gas fitting designed to help prevent reverse gas flow within compatible oxy-fuel welding, cutting, brazing and heating equipment.

Featuring a 3/8" right-hand threaded nut connection and a 1/4" hose tail, this check valve provides a connection between compatible gas equipment and flexible gas hose.

The integrated non-return valve arrangement is designed to allow gas to flow in the intended direction while helping prevent unwanted reverse flow, which can contribute to hazardous gas mixing within oxy-fuel equipment.

This type of fitting is commonly used within professional welding and fabrication environments where suitable gas safety components are essential for maintaining a correctly configured gas supply system.

The Double Safety Check Valve is a practical replacement component for engineers, welders and maintenance personnel working with compatible industrial gas equipment.

Key Features

• Double Safety Check Valve

• 3/8" right-hand threaded nut connection

• 1/4" hose tail connection

• Designed to help prevent reverse gas flow

• Suitable for compatible industrial gas systems

• Non-return valve arrangement

• Designed for use with appropriate oxy-fuel equipment

• Useful replacement gas hose fitting

• Suitable for professional welding and fabrication

• Compact connection between gas equipment and flexible hose

• Ideal for engineering and maintenance applications

Typical Applications

Suitable for appropriately specified:

• Oxy-fuel welding equipment

• Oxygen gas hose assemblies

• Gas cutting equipment

• Brazing and heating systems

• Industrial gas supply connections

• Welding and fabrication workshops

• Engineering maintenance

• Replacement gas hose assemblies

Technical Specification

Product Type: Double Safety Check Valve
Connection Type: Threaded Nut to Hosetail
Thread Size: 3/8"
Thread Direction: Right Hand (RH)
Hose Tail Size: 1/4" (6mm nominal)
Valve Function: Non-Return / Reverse Flow Prevention
Gas Compatibility: Must Be Confirmed for the Intended Gas
Application: Compatible Industrial Gas Equipment

Why Use a Gas Check Valve?

A gas check valve, also known as a non-return valve, is designed to allow gas to travel in one direction while restricting reverse flow.

Within oxy-fuel welding and cutting equipment, preventing reverse gas flow is important because it helps reduce the risk of gases mixing in parts of the system where they should remain separate.

Correctly specified gas safety components are an essential part of maintaining a safe and reliable gas supply arrangement.

3/8" RH Nut to 1/4" Hosetail Connection

The 3/8" right-hand threaded nut provides a connection to suitably matched gas equipment, while the 1/4" hosetail is intended for compatible flexible gas hose.

Before installation, ensure the thread type, gas service, hose dimensions and operating pressure are suitable for the intended application.

The Double Safety Check Valve 3/8" RH Nut to 1/4" Hosetail is a useful replacement fitting for professional welding and engineering workshops requiring dependable gas hose connections and reverse-flow protection.

Important Safety Information: A non-return check valve is not automatically a flashback arrestor and must not be used as a substitute for a correctly specified flashback arrestor. Confirm whether this product provides any additional safety functions beyond reverse-flow prevention. Right-hand threads are commonly associated with oxygen connections, but the thread direction alone does not establish gas compatibility. Only use with the gases and pressures approved by the manufacturer. Installation and testing should be carried out by a competent person in accordance with applicable safety requirements.

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Returns & Refunds

Our Satisfaction Guarantee:  We stand behind the quality of our products. If you're not completely satisfied with your items, you can return them within 14 days of purchase for a full refund or exchange. Please make sure the item is in its original condition, with all packaging and accessories included.

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Easy Return Process: To initiate a return, simply contact our customer support team. They will guide you through the process and provide you with a return authorisation number. Returns are processed promptly, and you'll receive your refund or replacement as soon as possible.

Return Shipping:  If you're returning an item due to a defect or an error on our part, we will cover the return shipping costs. If you're returning an item for other reasons, the cost of return shipping will be your responsibility.

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We appreciate your trust in Tec Products, and we look forward to serving you with top-quality products and outstanding customer service.

Thank you for choosing Tec Products!

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