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

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

Featuring a 3/8" right-hand threaded nut connection and a 3/8" (10mm nominal) hose tail, this valve provides a practical connection between compatible gas equipment and flexible gas hose assemblies.

The integrated non-return valve function allows gas to flow in the intended direction while helping prevent unwanted reverse flow. This is particularly important in oxy-fuel applications, where reverse gas flow can contribute to hazardous mixing of gases within the equipment.

Commonly used in professional welding, fabrication and engineering environments, the Double Safety Check Valve is a useful replacement component for maintaining correctly configured gas hose connections.

Its 3/8" hosetail fitting makes it suitable for compatible larger-bore gas hoses where the correct gas flow and connection arrangement are required.

Key Features

• Double Safety Check Valve for compatible welding gas equipment

• 3/8" right-hand threaded nut connection

• 3/8" (10mm nominal) hosetail

• Designed to help prevent reverse gas flow

• Non-return valve functionality

• Suitable for correctly specified oxy-fuel gas systems

• Ideal for compatible oxygen hose assemblies

• Practical replacement gas safety fitting

• Suitable for professional welding and fabrication workshops

• Designed for connection to compatible flexible gas hoses

• Useful for engineering and industrial maintenance applications

Typical Applications

Suitable for appropriately specified:

• Oxy-acetylene welding equipment

• Oxy-fuel cutting systems

• Oxygen gas hose assemblies

• Industrial gas supply connections

• Brazing and heating equipment

• Welding and fabrication workshops

• Engineering maintenance

• Replacement gas hose connections

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: 3/8" (10mm Nominal)
Valve Function: Non-Return / Reverse Flow Prevention
Gas Compatibility: Must Be Confirmed for the Intended Gas
Application: Compatible Oxy-Fuel Welding & Industrial Gas Equipment

Why Use a Welding Gas Check Valve?

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

In oxy-fuel welding and cutting systems, reverse-flow protection helps reduce the risk of oxygen and fuel gases mixing within hoses or equipment.

Using correctly specified gas safety fittings is an important part of maintaining safe and reliable welding gas equipment.

3/8" Right Hand Nut to 3/8" Hosetail

The 3/8" right-hand threaded nut is designed to connect to a compatible gas fitting, while the 3/8" hosetail provides a connection for suitable flexible gas hose.

This configuration is particularly useful for replacement hose assemblies where a 3/8" bore hose is required.

Always ensure the fitting, hose, gas service and operating pressure are compatible before installation.

The Double Safety Check Valve 3/8" RH Nut to 3/8" Hosetail is a practical replacement component for professional welders and engineers requiring reliable gas 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 the manufacturer's specification to establish whether the product provides any additional safety functions. Right-hand threads are commonly associated with oxygen fittings, but thread direction alone does not confirm gas compatibility. Installation and testing should be carried out by a competent person using approved components.

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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.

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