HDPE/PP Threaded Hole Plugs for Hydraulic Use

A single missing plug on a hydraulic manifold can dump 200 liters of oil onto the factory floor before the shift supervisor hits the emergency stop. Foshan Xinlisu Plastic Technology Co., Ltd. molds the HDPE/PP Threaded Hole Plugs for Hydraulic Use to stop that nightmare at the source. These threaded plastic plugs for hydraulic systems start with virgin HDPE or polypropylene, depending on the chemical exposure—HDPE for alkaline washes, PP for acidic cutting fluids. The threads are cut, not molded, so the pitch matches NPT, BSP, and metric ports with a 0.05 mm tolerance. Our wholesale catalog lists these as HDPE PP pipe hole plugs wholesale, available in sizes from 1/8 inch to 2 inches, all under one part number series. Unlike metal plugs that gall and seize in aluminum bodies, these plugs spin out cleanly even after 10,000 hours of thermal cycling from 10°C to 80°C. Among Pipe fittings, a good plug is invisible until it isn’t; ours stay invisible for the life of the machine. Th…

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