Parker PT-00322 Stainless Steel Flared Tube Cap 3/8 in

Product Description

The PARKER PT-00322 is a stainless steel flared tube cap designed to close off a 3/8-inch OD tube line with a 37-degree flare end connection. It provides a secure, pressure-rated seal on hydraulic, pneumatic, or fluid-system lines during service, testing, or long-term storage. The cap is rated for a maximum static working pressure of 6000 psi and a dynamic working pressure of 7200 psi, making it suitable for high-pressure applications. Its stainless steel construction supports an operating temperature range of -425 degrees F to 1200 degrees F. Licensed plumbers, pipefitters, and hydraulic system technicians are the primary installers of this fitting type.

This flared tube cap is used in residential and commercial fluid-conveyance systems, hydraulic lines, and refrigeration or instrumentation tubing where a 37-degree JIC or SAE flare-style termination is required. It is appropriate for any high-pressure line that must be temporarily or permanently capped at a 3/8-inch OD flare end. Each package contains two caps, making it practical for service kits and maintenance stock. Applications span HVAC refrigerant line work, hydraulic equipment service, and industrial plumbing installations.

Key Features

• Stainless steel construction supports temperatures from -425 degrees F to 1200 degrees F
• Maximum static working pressure of 6000 psi and dynamic working pressure of 7200 psi
• 37-degree flare end connection compatible with JIC and SAE flare-style fittings
• Compact overall length of 0.81 inches for tight-space installations
• Meets ISO 8434-2, SAE 070112A, and SAE J514 standards
• Sold in a package of two for efficient service and maintenance stocking

Compatibility

Designed as a standard 37-degree flare-style tube cap for use with 3/8-inch OD flared tube lines conforming to ISO 8434-2, SAE 070112A, and SAE J514 specifications.

Installation Notes

Installation should be performed by a qualified pipefitter, hydraulic technician, or licensed plumber. Depressurize and isolate the line completely before installing or removing any tube cap. Hand-tighten the cap onto the flare fitting first to confirm thread engagement before applying a wrench to avoid cross-threading. Follow applicable industry codes and the system manufacturer's torque and assembly guidelines for flare-type fittings.