Parker 4MSEL4N-B Compression Male Elbow 1/4 in Brass

Product Description

The PARKER 4MSEL4N-B is a brass compression tube male elbow fitting designed to create a 90-degree direction change in tubing runs while transitioning from a compression connection to a male NPT threaded port. Built from solid brass, this fitting handles working pressures up to 3500 psi, making it suitable for demanding pneumatic and hydraulic instrumentation lines. It accepts a 1/4-inch compression connection on one end and a 1/4-inch male NPT thread on the other. Plumbers, HVAC technicians, and instrumentation professionals install this fitting when routing tubing to a threaded port at a right angle is required.

This fitting is used in residential and commercial applications where copper, brass, or compatible soft tubing must connect to NPT-threaded equipment, manifolds, valves, or panel-mounted components. Typical installations include instrument air lines, refrigeration sensing lines, gas sample systems, and hydraulic control circuits. The male NPT end threads directly into a female NPT port, while the compression end provides a reliable, tool-made seal without soldering or flaring.

Key Features

• Brass construction for corrosion resistance and compatibility with a wide range of media
• 3500 psi maximum working pressure suits high-pressure instrumentation and pneumatic applications
• 1/4-inch compression inlet to 1/4-inch male NPT outlet for direct tube-to-threaded-port transitions
• 90-degree elbow geometry allows directional changes in tight or panel-mounted installations
• No soldering or flaring required on the compression end — mechanically sealed with standard hand tools

Compatibility

Designed as an OEM-style compression tube male elbow fitting for use in instrumentation, pneumatic, and fluid system tubing runs requiring a 1/4-inch compression to 1/4-inch male NPT connection.

Installation Notes

This fitting is typically installed by licensed plumbers, HVAC technicians, or instrumentation technicians. Before installation, depressurize and isolate the system and verify tubing OD matches the 1/4-inch compression size. Apply thread sealant or PTFE tape to the male NPT threads and tighten to the fitting manufacturer's specified engagement depth. Do not overtighten the compression nut, as over-compression can deform tubing and compromise the seal.