18X55 - Western Enterprises 18X55 Oxygen Adapter - B-Size Male to Female 90° Elbow

Technical Specifications: Western Enterprises 18X55

The Western Enterprises 18X55 is a specialized gas fitting adapter engineered for the welding and industrial gas markets. It functions as a 90-degree elbow with a Male B-Size Oxygen connection on one end and a Female B-Size Oxygen connection on the other. This configuration allows it to be inserted inline into existing oxygen setups without requiring hose modification or additional couplers. The fitting is manufactured to strict tolerances to ensure a gas-tight seal at pressures up to 200 PSIG.

Thread Specifications:
The unit utilizes the Compressed Gas Association (CGA) standard connection No. 022 for oxygen. Both the male and female ends feature 9/16"-18 UNF threads with a Right-Hand (RH) orientation. The "B-Size" designation indicates it is compatible with standard 1/4" and 3/16" I.D. welding hoses commonly found on industrial oxy-fuel outfits. The female swivel nut is designed to tighten securely onto regulator outlets or hose ends, while the male end accepts standard hose nuts.

Material and Construction:
Fabricated entirely from free-machining brass, the 18X55 offers superior mechanical strength and resistance to deformation under torque. Brass is essential for oxygen service due to its low friction and non-sparking properties, minimizing ignition risks in oxygen-enriched atmospheres. The elbow is machined from a solid forging or bar stock, ensuring structural integrity and eliminating porosity issues often found in cast fittings. The internal bore is sized to minimize flow restriction, ensuring that your torch receives the full volume of oxygen required for heavy cutting or heating applications.

Applications:
This fitting is widely used in manifold systems, cylinder regulator setups, and torch handle assemblies. It is particularly useful in tight spaces where a straight connection would cause interference. For example, on a crowded manifold, using 90-degree elbows can allow for tighter spacing of regulators. On torch handles, it can redirect the hose away from the operator's wrist, reducing fatigue and improving torch maneuverability during precision cutting operations.

Specifications Summary

• Part Number: 18X55
• Gas Service: Oxygen
• Inlet: 9/16"-18 RH Male (B-Size)
• Outlet: 9/16"-18 RH Female (B-Size)
• Material: Brass
• Angle: 90 Degrees