Parker 4-4 FH2BZ-SS Bulkhead Connector 1/4 in Mnpt Ss

Product Description

The PARKER 4-4 FH2BZ-SS is a stainless steel compression tube bulkhead connector designed to pass tubing through a panel, bulkhead, or enclosure wall while maintaining a secure, leak-resistant seal. It features compression fittings on one end and a male NPT (MNPT) threaded connection on the other, allowing transitions between tube and pipe thread systems. Rated to a maximum working pressure of 10,300 psi, this fitting is built for demanding fluid and gas transfer applications. The stainless steel construction provides strong resistance to corrosion, making it suitable for aggressive media and harsh environments.

This bulkhead connector is used in high-pressure hydraulic, pneumatic, instrumentation, and process piping systems where tubing must pass through a panel or structural barrier. It suits residential and commercial installations across industries including HVAC controls, refrigeration, chemical processing, and oil and gas. The 1/4 inch thread size and compression-by-MNPT end connections make it a practical choice wherever a bulkhead passthrough is needed without welding or flanged fittings.

Key Features

• Maximum working pressure of 10,300 psi for high-pressure service
• Stainless steel construction for corrosion resistance in aggressive environments
• Compression x MNPT end connections for tube-to-pipe-thread transition
• 1/4 inch thread size for compact line installations
• Bulkhead design allows secure panel or wall passthrough
• Overall length of 2.132 inches for straightforward inline installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting for compression tube and MNPT pipe thread systems requiring a bulkhead passthrough in 1/4 inch thread size.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or instrumentation technicians. Shut off all pressure to the line before disassembly or installation. Use appropriate thread sealant on the MNPT connection per the system fluid compatibility requirements. Verify that the compression ferrule and nut are properly seated before pressurizing; do not over-tighten the compression fitting, as this can damage the ferrule and compromise the seal.