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18Z55 - Victor 18Z55 Adapter - 1/2" NPT Male to C-Size Oxygen Male (7/8"-14)

Packaging: pack of 1
$66.21/EA $49.48/pack of 1 only $49.48/EASave 25%

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OVERVIEW

Upgrade Your Shop Piping with Victor Quality

Setting up a professional welding shop involves more than just buying a welder; it requires a safe and efficient gas delivery system. The Victor 18Z55 Adapter is the perfect solution for welders connecting their station regulators to a shop piping system. If you have run 1/2-inch pipe for your oxygen lines and need to mount a regulator or connect a heavy-duty hose, this adapter converts your 1/2" NPT female outlet into a standard C-Size Oxygen Male outlet.

Why is this important? Most industrial station regulators are equipped with a C-Size inlet nut (7/8"-14 thread). Without the correct adapter, you cannot mount the regulator to your wall or drop pipe. The 18Z55 solves this problem instantly. Made from solid brass, it is built to withstand the rigors of a working shop environment. The hex body allows you to tighten it securely with a wrench, ensuring a leak-proof seal that keeps your expensive gas in the line and out of the atmosphere. Because it is a Victor product, you can trust that the threads are cut to precise tolerances, preventing cross-threading and ensuring a smooth connection every time.

Safe and Compatible

Safety is paramount when dealing with oxygen. This adapter is specifically cleaned for oxygen service, meaning it is free from oils and greases that could react dangerously with high-pressure oxygen. It is designed for Right-Hand (RH) threading, which is the industry standard for oxygen fittings, preventing accidental connection to fuel gas lines (which use Left-Hand threads). Whether you are building a new manifold system for your garage or upgrading a commercial fabrication bay, the Victor 18Z55 ensures your gas supply is connected professionally and safely.

Features for the Pro

  • Solid Brass: Won't rust or spark.
  • Perfect Fit: Adapts 1/2" pipe to standard station regulators.
  • Oxygen Clean: Ready for immediate installation in O2 lines.
  • Easy Installation: Standard hex grip for easy wrenching.
Additional Information
Brand:Victor
Item:Adapter
Material:Brass
Gas Service:Oxygen
Connection 1:1/2" NPT Male
Connection 2:C-Size Oxygen Male (7/8"-14 RH)
Thread Direction:Right Hand
Construction:Machined Brass
Packaging Description:pack of 1

INCLUDED

  • One (1) Brass Adapter: 1/2" NPT Male to C-Size Oxygen Male

APPLICATIONS

  • Connecting station regulators to 1/2" NPT pipe drops
  • Manifold outlet connections
  • Industrial gas distribution systems
  • Adapting NPT piping to C-Size oxygen hoses
  • Fabrication shop gas plumbing

FAQ

One end is 1/2" NPT Male, and the other end is C-Size Oxygen Male, which corresponds to 7/8"-14 threads.

Yes, this adapter is designed for oxygen service and is suitable for typical station drop and manifold pressures. Always ensure your downstream equipment is rated for the line pressure.

While the NPT end will fit, the C-Size Oxygen end (7/8"-14 RH) is specific to Oxygen fittings. Inert gas regulators typically use different CGA connections (like CGA 580 or B-size inert fittings). However, C-size water/gas fittings exist, but this part is specifically labeled for Oxygen service.

The C-Size Oxygen thread on this adapter is Right-Hand (RH). Fuel gas fittings would typically be Left-Hand (LH).

It is manufactured from high-quality brass, ensuring durability and compatibility with oxygen systems.

No, this is a straight-through brass adapter. It does not contain internal check valves or flash arrestors.

A station drop is the vertical pipe coming down from a main gas header in a facility, terminating at a user station where a regulator is attached. This adapter connects that pipe to the regulator.

Yes, as a Victor oxygen component, it comes cleaned and packaged for oxygen service to prevent combustion hazards.

CATALOGUE & SPEC SHEETS

Spec Sheet
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