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The PARKER 1/2 HP-S is a hex plug fitting designed to seal hydraulic and industrial pipe systems at pressures up to 6000 psi. Constructed from zinc-plated steel, it provides corrosion resistance suitable for demanding service environments. The plug uses a 1/2 inch male MNPTF (male national pipe taper fuel) thread, which creates a pressure-tight mechanical seal in female NPT ports. With an overall length of 1 inch and a 7/8 inch hex size, it is compatible with standard wrenches and fits within tight installation spaces. Plumbers, pipefitters, and hydraulic system technicians install this plug to cap unused ports or terminate pipe runs in high-pressure fluid systems.
This hex plug is appropriate for use in industrial hydraulic systems, fluid power circuits, and high-pressure plumbing applications where a reliable port closure is required. It is well suited for both new installations and retrofit work where an existing port must be blocked. The 6000 psi maximum working pressure rating makes it suitable for demanding hydraulic and pneumatic service applications in commercial and industrial settings.
Designed as an OEM-style replacement or service fitting for industrial pipe and hydraulic systems using standard 1/2 inch female NPT or MNPTF threaded ports.
Installation should be performed by a licensed pipefitter, plumber, or qualified hydraulic technician. Depressurize and isolate the system completely before removing or installing any plug. Apply an appropriate thread sealant or PTFE tape to the male threads in accordance with the system fluid compatibility and applicable codes such as IFGC or IPC. Do not over-torque; tighten to snug plus a measured number of turns per standard practice for taper pipe threads, using a wrench on the hex — never use pliers directly on the body.
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