

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The BK 506-040 is a Schedule 80 PVC threaded nipple measuring 1-1/4 inches in diameter by 4 inches in length. Manufactured to IPS (iron pipe size) standards and threaded to NPT (National Pipe Thread) specifications, it meets ASTM D1785 requirements for rigid PVC pressure-rated pipe fittings. This nipple is designed for use in pressurized liquid transport systems and is installed by licensed plumbers and pipefitters in both residential and commercial applications. The thicker Schedule 80 wall provides additional strength and pressure tolerance compared to Schedule 40 fittings of the same nominal size.
This nipple is suited for water supply, irrigation, industrial fluid handling, and other liquid transport systems where a durable threaded PVC connection is required. Its NPT threading allows direct connection to standard pipe, valves, and fittings in typical plumbing assemblies. The 1-1/4-inch nominal size is commonly found in branch lines, manifolds, and service connections across a wide range of residential and light commercial piping systems.
Designed as an OEM-style replacement or new-install fitting for Schedule 80 PVC piping systems using 1-1/4-inch NPT-threaded connections in residential and commercial liquid transport applications.
Installation should be performed by a licensed plumber in accordance with applicable IPC and local plumbing codes. Before installation, shut off the water supply and relieve system pressure. Apply pipe thread compound or PTFE sealing tape to the threaded portion of the nipple before making up the joint. Do not overtighten PVC threaded fittings, as excess torque can crack the fitting body.
Thanks for subscribing!
This email has been registered!