Browse by Type
Not sure which machine fits the job? Each type below explains what it’s built for.
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Inert Welding Gas Couplers
Used to connect inert gas hoses to equipment and prevent gas flow when disconnecting. -
Oxy Fuel Quick Connect Sets
Used to connect oxygen and fuel hoses to equipment and prevent gas flow when disconnecting. -
Flashback Arrestors
Protects in the case of a flashback, diffusing and extinguishing flames through interior anti-flash elements.
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Koike Aronson, Inc
Inert Coupler Socket - Regulator to Hose
$37.80In stock
The Global Sentinel Inert couplers have been expertly engineered for quick setup and removal of welding equipment, featuring a straightforward safety lock to ensure a precise and secure fit within...View & Buy -
Koike Aronson, Inc
Inert Coupler Socket - Machine to Hose
$37.80In stock
The Global Sentinel Inert couplers have been expertly engineered for quick setup and removal of welding equipment, featuring a straightforward safety lock to ensure a precise and secure fit within...View & Buy -
Koike Aronson, Inc
Inert Coupler Plug - Regulator to Hose
$13.65In stock
The Global Sentinel Inert couplers have been expertly engineered for quick setup and removal of welding equipment, featuring a straightforward safety lock to ensure a precise and secure fit within...View & Buy -
Koike Aronson, Inc
Inert Coupler Plug - Machine to Hose
$13.65In stock
The Global Sentinel Inert couplers have been expertly engineered for quick setup and removal of welding equipment, featuring a straightforward safety lock to ensure a precise and secure fit within...View & Buy -
Koike Aronson, Inc
Oxy-Fuel Quick Connect Flashback Arrestors
$126.00In stock
For safe and efficient tool operation, Koike's flashback arrestors are the perfect compliment to your workshop. Our unique combination of flashback prevention features, dual motion interlocking...View & Buy -
Koike Aronson, Inc
Inert Welding Gas Couplers
$45.15In stock
The Global Sentinel Inert couplers have been expertly engineered for quick setup and removal of welding equipment, featuring a straightforward safety lock to ensure a precise and secure fit...View & Buy -
Koike Aronson, Inc
Torch Side Plug Set
$22.71In stock
This plug set with built in check valve expands the use of your existing hose side sockets for oxygen and fuel. Add to all your oxy-fuel cutting torches and portable cutting machines.View & Buy
Why Use Gas Couplings
Gas couplings speed up equipment changeovers with quick-connect designs and automatic shutoff on disconnect, protecting operators and equipment. Color-coded, gas-specific fittings reduce mismatched connections, and OSHA-compliant, UL-certified construction supports safe, dependable operation on the shop floor.
How to Choose Gas Couplings
Start by matching the coupling to the gas type and application. Oxygen and fuel-gas fittings are not interchangeable, and the correct connection is identified by its part number. Next, determine where the connection is needed, such as at the regulator, along the hose, or at the torch. This helps you select the correct plug, socket, or coupling configuration for the equipment. For additional protection, consider a flashback arrestor rated for the specific gas line. Using the right coupling and safety components helps create a secure connection and supports reliable gas flow during welding and cutting applications.
FAQs
Here are answers to some of the most common questions about Koike gas couplings and their uses.
Gas couplings connect and secure hoses and torches so gas and material flow safely between equipment. They also stop gas flow when disconnected, which improves safety in oxy-fuel and inert-gas welding and cutting setups.
An oxy-fuel quick connect coupler lets you quickly attach and detach oxygen and fuel hoses without tools, while preventing gas flow on disconnect. Koike's oxy-fuel quick connect sets are OSHA-compliant and UL-certified for safe, reliable connections.
Koike offers three main types: inert welding gas couplers, oxy-fuel quick connect sets, and flashback arrestors. Within these you'll find regulator side sockets, regulator-to-hose and hose-to-hose connectors, and hose- and torch-side plugs for both fuel and oxygen.
Are Koike gas couplings compatible with both oxygen and fuel gas lines?
Yes. Koike gas couplings come in dedicated oxygen and fuel-gas versions, identified by part number (for example ZAP1 for oxygen and ZAP2 for fuel), so each connection matches the correct gas line. Always pair oxygen fittings with oxygen lines and fuel fittings with fuel lines.
Need help selecting the right connection? Contact Koike for guidance on matching couplers, plugs, sockets, and flashback protection to your equipment.