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The PARKER PT-00326 is a stainless steel flared tube cap designed to seal the open end of a 7/8-inch OD flared tube line. It uses a 37-degree flare end connection to create a pressure-rated, leak-resistant seal without welding or threading. Rated to 6000 psi maximum dynamic working pressure, this cap is built for demanding hydraulic, pneumatic, and fluid-line applications where system integrity under high pressure is critical. Fabricated from stainless steel, it resists corrosion in harsh service environments. Licensed plumbers, HVAC technicians, and hydraulic system technicians install this fitting when capping off active or inactive flared tube lines during service, testing, or system modifications.
This tube cap is suited for use in residential, commercial, and industrial fluid systems where 37-degree flare fittings are the specified connection standard. Common applications include hydraulic lines, refrigeration and air conditioning tubing, compressed gas systems, and instrumentation tubing. It is appropriate for any service environment requiring a secure, removable cap on a 7/8-inch OD flared tube end at elevated working pressures. Sold in a package quantity of two.
Designed as an OEM-style replacement or service fitting for systems using 37-degree flare tube connections with a 7/8-inch OD tube size.
Installation is typically performed by a licensed plumber, HVAC technician, or hydraulic systems technician. Depressurize and isolate the system completely before installing or removing any tube fitting. Use the appropriate flare nut wrench to avoid rounding the fitting; do not use pipe wrenches on flare fittings. Follow applicable industry codes and the system manufacturer guidelines for flare fitting assembly torque and inspection procedures.
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