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The PARKER PT-00791 is a flareless bite-type tube plug designed to seal the open end of a tube with a 16 mm outside diameter. Bite-type fittings use a ferrule that bites into the tube wall on assembly, creating a leak-resistant mechanical seal without the need to flare the tubing. This plug terminates a tube run permanently or temporarily and is suited for hydraulic, pneumatic, and fluid-transfer systems where a clean, pressure-rated tube end closure is required. Licensed plumbers, pipefitters, and industrial maintenance technicians are the typical installers for this style of fitting.
This tube plug is appropriate for use in instrumentation lines, hydraulic control circuits, and pneumatic distribution systems that use metric tubing with a 16 mm OD. The flareless bite-type design makes it compatible with applications where flaring equipment is not available or where a compact, in-line termination is preferred. It ships in a package quantity of two, making it practical to keep a spare on hand during service calls or panel builds.
Designed as an OEM-style replacement or service fitting for hydraulic, pneumatic, and fluid-transfer tube systems using 16 mm OD metric tubing with flareless bite-type connections.
Installation is performed by qualified pipefitters or hydraulic technicians. Before installing, depressurize and bleed down the line completely to relieve all system pressure. Hand-tighten the fitting onto the tube end, then advance the nut the manufacturer-specified number of turns to seat the ferrule bite — do not over-tighten, as this can crack the ferrule. Follow applicable system design codes and the equipment manufacturer's assembly instructions for flareless fittings.
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