Parker 61PB-6 Compression Tube Sleeve Brass 3/8 in

Product Description

The PARKER 61PB-6 is a brass compression tube sleeve designed to create a secure, leak-resistant connection in compression fitting assemblies. The sleeve seats between the compression nut and fitting body, biting into the outer diameter of the tube to form a reliable mechanical seal. Rated for a maximum working pressure of 150 psi and a temperature range of 0 to 150 degrees F, this sleeve suits a wide range of fluid and pneumatic line applications. It is sized for 3/8 inch tube outside diameter and is compatible with standard compression fitting configurations. Plumbers, HVAC technicians, and industrial pipefitters commonly install this sleeve as part of new compression assemblies or as a replacement component during line service.

This sleeve is appropriate for residential and light commercial plumbing, HVAC refrigerant-adjacent tubing, and instrumentation lines where compression fittings are the specified connection method. It is well suited for copper and compatible soft-metal tubing with a 3/8 inch outside diameter. The 150 psi pressure rating makes it a practical choice for water supply, low-pressure pneumatic, and process fluid lines operating within its rated temperature window.

Key Features

• Brass construction for corrosion resistance and reliable compression bite
• Sized for 3/8 inch tube outside diameter
• Maximum working pressure of 150 psi
• Operating temperature range of 0 to 150 degrees F
• Tube end connection type — fits standard compression fitting assemblies

Compatibility

Designed as an OEM-style replacement or new-installation sleeve for standard compression fitting assemblies using 3/8 inch outside diameter tubing.

Installation Notes

Compression sleeves are installed by plumbers and pipefitters as part of a three-piece compression fitting assembly: nut, sleeve, and fitting body. Always depressurize and drain the line before disassembling or assembling compression fittings. The sleeve should be positioned squarely on the tube before hand-tightening the nut, then turned with a wrench per the fitting manufacturer's standard procedure — do not over-tighten, as over-compression can deform the sleeve and cause leaks. Follow applicable IPC or local plumbing codes for the specific system being serviced.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.