Parker BD-KP4412 Compression Tube Union 1/4 Inch Ss

Product Description

The PARKER BD-KP4412 is a stainless steel compression tube union designed to join three compression-end tube connections at a single fitting body. It accepts 1/4 inch outside diameter tubing on all three ports and provides a secure, leak-resistant mechanical seal without soldering or brazing. This type of union is used in fluid and gas distribution lines where a removable, reusable connection point is required. HVAC technicians, plumbers, and instrumentation mechanics install this fitting in refrigerant, pneumatic, and process tubing systems where stainless steel construction is specified for corrosion resistance or elevated temperature service.

This fitting is suited for residential and commercial applications involving 1/4 inch OD tubing routed through mechanical rooms, equipment cabinets, or process panels. Stainless steel construction makes it appropriate for environments where moisture, mild chemical exposure, or elevated operating temperatures would degrade brass or plastic fittings. It is commonly used in refrigeration sensing lines, pneumatic control circuits, and light instrumentation tubing runs. The three-port compression configuration allows a single fitting to branch or splice a line where a standard two-port union is insufficient.

Key Features

• Stainless steel body resists corrosion in wet or chemically active environments
• Three compression end connections on a single fitting body for branch or splice applications
• Accepts 1/4 inch outside diameter tubing on all ports
• No soldering or brazing required — mechanical compression connection
• Reusable fitting design allows disassembly and reconnection during service

Compatibility

Designed as an OEM-style compression fitting for use with 1/4 inch OD tubing in refrigeration, pneumatic, and instrumentation applications where a three-port compression union is required.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or instrumentation mechanics depending on the fluid or gas system involved. Isolate and depressurize the line before disassembling any existing fitting or inserting tubing into this union. Ensure tubing ends are cut square and deburred before insertion to achieve a proper compression seal. Follow applicable codes including ASHRAE, IPC, or system-specific OEM guidelines for tubing connections in pressurized service.