Parker 225-4-5/32 Barbed Tube Union Elbow Brass

Product Description

The PARKER 225-4-5/32 is a barbed tube union elbow fitting designed to connect two flexible tubes at a 90-degree angle using a barb-retention style that requires no clamps or threaded ends. Constructed from brass, it accommodates a 1/4-inch OD tube on one end and a 5/32-inch OD tube on the other, with corresponding inside diameters of 0.17 inches and 0.096 inches. This reducer-style elbow is suited for low-pressure pneumatic, fluid transfer, and instrumentation tubing applications where a direction change and a size transition are needed in a single compact fitting. Plumbers, HVAC technicians, and instrumentation technicians commonly install this type of fitting in tight routing situations.

This fitting is used in residential and light commercial applications where flexible plastic or rubber tubing must change direction and transition between two different tube sizes. Typical scenarios include condensate drain lines, low-pressure air lines, laboratory tubing assemblies, and equipment plumbing where routing constraints demand a 90-degree turn. Its brass construction makes it appropriate for environments where corrosion resistance and moderate pressure handling are required.

Key Features

• Dual-size barbed ends accept 1/4-inch OD tubing on one side and 5/32-inch OD tubing on the other
• Inside diameters of 0.17 inches and 0.096 inches for a secure barb-grip seal on compatible flexible tubing
• Brass construction provides corrosion resistance for fluid and air service
• Union elbow configuration allows two separate tube runs to be joined at a 90-degree angle without fittings on a fixed component
• Compact form factor suits tight-space routing in equipment panels, HVAC cabinets, and instrumentation enclosures

Compatibility

Designed as an OEM-style replacement or new-installation barbed union elbow for flexible tubing systems requiring a 1/4-inch by 5/32-inch OD reducer elbow connection in pneumatic, fluid, or condensate service.

Installation Notes

This fitting is typically installed by HVAC technicians, plumbers, or instrumentation mechanics working on low-pressure tubing systems. Before installation, relieve all pressure from the tubing circuit and drain any fluid present. Push tubing firmly over each barbed end until it seats past the barb retention point to ensure a leak-resistant connection. For systems subject to vibration or higher flow rates, a clamp or tie may be added over the tubing at each barb for additional retention security.