Value Collection NB13001 Close Pipe Nipple 4 in Sch 40 Steel

Product Description

The VALUE COLLECTION NB13001 is a Schedule 40 close threaded pipe nipple machined from black steel. A close nipple is threaded along its entire length with no unthreaded center, making it the correct choice when two fittings must be joined with minimal gap between them. This nipple measures 4 inches in diameter and 2-7/8 inches in length, placing it in the heavy-duty size range used in industrial and commercial piping runs. Licensed plumbers and pipefitters install this type of nipple in gas, water, and steam distribution systems where a compact, rigid connection is required.

This close nipple is suited for residential and commercial plumbing, HVAC hydronic systems, and industrial pipe assemblies where Schedule 40 wall thickness is specified. It is used wherever a full-length threaded nipple is needed to connect two female-threaded fittings directly, such as unions, couplings, valves, and manifolds. The black steel construction makes it a common choice for natural gas and propane supply lines as well as fire suppression headers.

Key Features

• Close nipple design — fully threaded along entire body length for tight back-to-back fitting connections
• Schedule 40 wall thickness provides pressure-rated durability for gas, water, and steam service
• Black steel construction suitable for gas distribution and hydronic piping applications
• Threads conform to ANSI/ASME B1.20.1 standard for interchangeable NPT fitment
• ASTM-referenced material standard for consistent steel quality

Compatibility

Designed as an OEM-style replacement or new-installation component compatible with standard NPT female-threaded fittings and valves in Schedule 40 black steel piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and IFGC requirements. Shut off and depressurize the line before removing or installing any threaded nipple. Apply an approved thread sealant or PTFE tape to the male threads before makeup, and tighten with pipe wrenches to achieve a proper pressure-tight joint. Do not over-torque close nipples, as the short body provides limited engagement length on each end.