Asc 4354002800 1-1/2 in Close Nipple Xh Black Steel

Product Description

The ASC Engineered Solutions 4354002800 is a close nipple machined from seamless extra-heavy black steel pipe. A close nipple is a short threaded pipe connector where the two male NPT threads nearly meet at the center, leaving minimal unthreaded material. This fitting is used to join two female-threaded fittings with virtually no gap between them. At 1-1/2 inches nominal pipe size with a close length of approximately 1-3/4 inches overall, the 4354002800 is suited for high-pressure or high-demand piping systems where standard-weight pipe is insufficient. Plumbers, pipefitters, and mechanical contractors install this type of fitting in gas, steam, and industrial fluid lines.

This close nipple is designed for applications requiring a tight, compact connection in black steel piping systems. The extra-heavy wall construction makes it appropriate for higher-pressure service compared to standard or schedule 40 fittings. Typical use cases include steam distribution, compressed air headers, industrial gas manifolds, and mechanical room piping. The seamless construction eliminates a weld seam, which reduces potential weak points in demanding service environments. This fitting is domestically sourced and carries an A106B seamless designation consistent with that standard.

Key Features

• Seamless extra-heavy (XH) wall construction for higher-pressure service
• 1-1/2 inch nominal pipe size with close-pattern length of approximately 1-3/4 inches
• Black steel material compatible with gas, steam, and industrial fluid piping
• Male NPT threads on both ends for direct connection between female-threaded fittings
• Domestic manufacture consistent with A106B seamless pipe material designation

Compatibility

Designed as an OEM-style replacement or new-install close nipple for 1-1/2 inch female NPT-threaded fittings in black steel piping systems requiring extra-heavy wall fittings.

Installation Notes

Installation of this close nipple is typically performed by a licensed plumber or pipefitter in accordance with applicable mechanical and plumbing codes, including IFGC and ASME B31 where relevant. Shut off and depressurize the piping system completely before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the intended service medium. Do not over-tighten; use a pipe wrench with a backup wrench on the adjacent fitting to avoid stressing connected components.

Technical Specifications

• Fitting Size: 1-1/2 inches nominal, close pattern (approximately 1-3/4 inches overall length)
• Wall Type: Seamless Extra Heavy (XH)
• Material: Black Steel
• Item Weight: 0.41 pounds
• Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 4354002800