Bk 404-040 Schedule 80 Pvc Nipple 3/4 X 4 Inch Npt

Product Description

The BK 404-040 is a Schedule 80 PVC nipple designed for the transport of water and other compatible liquids through threaded piping systems. Measuring 3/4 inch in diameter and 4 inches in length, this nipple is machined to IPS (iron pipe size) dimensions and threaded to NPT (National Pipe Thread) standards. It meets ASTM D1785 specifications, confirming dimensional accuracy and material integrity. The heavier wall thickness of Schedule 80 construction provides additional pressure-bearing capacity compared to Schedule 40, making it suitable for demanding installations. Plumbers and pipefitters install this fitting in both residential and commercial systems.

This nipple is suited for a wide range of plumbing, irrigation, industrial, and fluid-handling applications wherever a short threaded male-to-male PVC connection is required. Its NPT threading allows direct connection to standard pipe fittings, valves, and equipment. Pipe thread compound or PTFE sealing tape should be applied to the threaded portion before assembly to ensure a leak-free joint. The 3/4 inch size is commonly found in residential water supply lines, irrigation manifolds, and light commercial fluid systems.

Key Features

• Schedule 80 PVC construction for increased wall thickness and pressure capacity versus Schedule 40
• Threaded to NPT standards for compatibility with standard pipe fittings and valves
• IPS (iron pipe size) dimensioning ensures consistent fit in standard pipe systems
• Meets ASTM D1785 specifications for PVC pressure-rated pipe and fittings
• 3/4 inch x 4 inch size suits common residential and light commercial piping runs

Compatibility

Designed as an OEM-style drop-in replacement and standard fitting for Schedule 80 PVC threaded piping systems using 3/4 inch NPT connections.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Apply pipe thread compound or PTFE sealing tape to the threaded male ends before assembly to prevent leaks. Do not over-tighten PVC threaded fittings, as excess torque can crack the fitting body. Shut off and depressurize the system before removing or installing any threaded nipple.

Technical Specifications

• Schedule: 80
• Material: PVC
• Diameter: 3/4 inch
• Length: 4 inches
• Thread Standard: NPT (National Pipe Thread)
• Pipe Sizing Standard: IPS (Iron Pipe Size)
• ASTM Standard: D1785
• Weight: 0.081 pounds
• Sold As: Each

Standard Information

• Brand: BK
• Manufacturer Part Number: 404-040