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The BK 505-020 is a Schedule 80 PVC nipple sized at 1 inch by 2 inches, used to connect threaded pipe sections in pressurized liquid transport systems. Manufactured to ASTM D1785 specifications, this nipple uses IPS (iron pipe size) dimensions and NPT (National Pipe Thread) threading on both ends. The Schedule 80 wall thickness provides greater pressure tolerance compared to Schedule 40, making it suitable for demanding plumbing and industrial piping applications. Pipe thread compound or sealing tape must be applied to the threaded sections before assembly to ensure a leak-free joint. Licensed plumbers and pipefitters are the primary installers of this fitting.
This nipple is appropriate for residential and commercial plumbing systems where short-run threaded connections are needed between fittings, valves, or equipment. It handles water and a wide range of compatible liquids. The NPT threading makes it compatible with standard iron pipe size fittings and valves found in plumbing, irrigation, and process piping systems. Its compact 2-inch length makes it useful in tight-clearance installations where a close nipple is not quite short enough.
Designed as an OEM-style replacement or new-installation fitting for Schedule 80 PVC threaded piping systems using NPT connections in standard IPS pipe sizes.
Installation should be performed by a licensed plumber in accordance with applicable IPC or local plumbing code requirements. Always depressurize and drain the line before removing or installing threaded nipples. Apply pipe thread sealant compound or PTFE sealing tape to the male threads before hand-tightening, then wrench-tighten to a snug fit. Avoid overtightening PVC threaded fittings, as excessive torque can crack the fitting body.
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