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The BK 403-100 is a Schedule 80 PVC nipple designed for the transport of water and compatible liquids in pressurized piping systems. Sized at 1/2 inch by 10 inches, it features IPS (iron pipe size) dimensions with NPT (National Pipe Thread) threads on both ends. The Schedule 80 wall thickness provides greater pressure-handling capability compared to Schedule 40, making it suitable for more demanding service conditions. This nipple meets ASTM D1785 specifications. Pipe thread compound or PTFE sealing tape must be applied to the threaded portions before assembly to ensure a leak-free joint. Plumbers and pipefitters are the typical installers.
This nipple is used in residential and light commercial plumbing, irrigation, industrial fluid lines, and other piping systems where PVC is an appropriate material for the working fluid. Its 10-inch length makes it well suited for installations requiring an extension between two fittings or between a fitting and a valve. The NPT thread form is compatible with standard PVC and metal fittings throughout the trade. It is sold as an individual piece (each).
Designed as an OEM-style replacement or new-installation component for 1/2-inch NPT Schedule 80 PVC piping systems. Compatible with standard NPT-threaded PVC fittings, couplings, valves, and adapters used in pressurized liquid service lines.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Always apply pipe thread compound or PTFE tape to the threaded portion of the nipple before threading into fittings. Shut off the water supply and relieve system pressure before removing or installing any nipple in a live line. Avoid over-tightening PVC threaded connections, as excessive torque can crack the fitting or the nipple body.
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