Parker PT-00325 Stainless Steel Flared Tube Cap 3/4 in

Product Description

The PARKER PT-00325 is a stainless steel flared tube cap designed to seal the open end of a 3/4-inch OD tube with a 37-degree flare connection. It provides a pressure-rated termination point on hydraulic, pneumatic, or fluid-transfer lines where a port or line end must be capped off during service, system modification, or long-term storage. Built from stainless steel, it is suited for use in corrosive or high-pressure environments and is rated for a maximum working pressure of 6,000 psi dynamic. HVAC technicians, plumbers, and hydraulic system installers all work with flare-end fittings of this type as part of routine line isolation and system maintenance procedures.

This tube cap fits standard 3/4-inch OD tubing with a 37-degree flare end, which is a common configuration in industrial hydraulic systems, refrigeration lines, and high-pressure fluid circuits in both commercial and residential installations. It is sold in a package quantity of two units per order. This fitting is appropriate wherever a flare-end tube port needs to be blocked off cleanly and securely without the use of thread sealants or additional adapters.

Key Features

• Stainless steel construction resists corrosion in wet, chemical, or high-humidity environments
• 37-degree flare end connection seats securely against standard JIC-style flared tube ends
• Rated for 6,000 psi maximum dynamic working pressure
• Fits 3/4-inch OD tubing for broad compatibility across hydraulic and refrigeration applications
• Sold in a package of two, supporting back-to-back or redundant capping needs on the same service call

Compatibility

Designed as an OEM-style replacement and service fitting for hydraulic, pneumatic, and fluid-transfer systems using 3/4-inch OD tubing with a 37-degree flare end connection.

Installation Notes

This fitting is typically installed by licensed plumbers, hydraulic technicians, or HVAC service professionals. Before installing or removing any tube cap on a pressurized line, depressurize and isolate the system completely. Hand-tighten the cap onto the flare seat first to ensure proper seating, then use the appropriate flare nut wrench to bring it to a snug fit without over-torquing the stainless flare seat. Follow applicable system codes and manufacturer line pressure ratings when returning the system to service.