Parker PF-00310 Brass Flared Tube Cap 3/4 in 45 Deg

Product Description

The PARKER PF-00310 is a brass flared tube cap designed to terminate or seal a 3/4-inch OD flared tubing line. It features a 45-degree flare end connection, making it compatible with standard SAE 45-degree flare fittings used throughout HVAC, refrigeration, and plumbing systems. The cap threads onto a flared tube end to block flow, isolate a line, or cap off an unused port during service or installation. HVAC technicians and plumbers install this type of fitting when capping refrigerant lines, fuel lines, or hydraulic circuits. Brass construction provides corrosion resistance and reliable sealing under pressure.

This flared tube cap is suited for residential and light commercial applications where 45-degree SAE flare fittings are standard. Typical uses include capping refrigerant line sets during system modifications, sealing off unused ports on manifolds, and terminating fuel or oil lines during equipment servicing. The 3/4-inch OD tube size is common in larger refrigerant circuits and plumbing branch lines. Each package contains 2 caps.

Key Features

• 45-degree flare end connection matches standard SAE flare fittings
• 3/4-inch tube OD sizing for larger refrigerant and plumbing circuits
• Brass material provides corrosion resistance and durability
• Cap fitting type terminates or isolates an open flared tube end
• Sold in packages of 2 caps per package

Compatibility

Designed as an OEM-style replacement and service fitting for systems using standard 45-degree SAE flare connections with 3/4-inch OD tubing.

Installation Notes

Installation is performed by licensed HVAC technicians or plumbers. Always recover refrigerant and depressurize the line before removing or installing any flare fitting. Hand-tighten the cap onto the flared tube end first, then snug with a wrench — do not overtighten brass fittings, as over-torquing can crack the flare or distort the seat. Follow applicable mechanical codes and manufacturer guidelines for flare fitting assembly.