Bmi Usa 35159 Malleable Iron Pipe Bushing 4x1.5 Inch Black Hex

Product Description

The BMI USA 35159 is a malleable iron hex pipe bushing designed to reduce a 4-inch female threaded connection down to a 1.5-inch male threaded fitting. This type of bushing — commonly called a HEXI or hex bushing — features a hex body profile that allows a wrench to apply proper torque during installation. It is used in plumbing, industrial piping, and mechanical systems where pipe size transitions are needed within a threaded iron pipe system. At 2.57 pounds, the malleable iron construction provides strength and durability suitable for demanding trade applications. The black finish indicates standard black malleable iron, appropriate for non-potable and gas-rated piping systems where applicable.

This bushing is suited for use in residential and commercial plumbing systems, gas distribution piping, HVAC-related piping runs, and industrial fluid handling applications. It is installed wherever a threaded iron pipe run requires stepping down from a 4-inch line to a 1.5-inch branch or connection point. Licensed plumbers and pipefitters are the primary installers of this fitting in new construction and retrofit projects.

Key Features

• Malleable iron construction for durability in threaded iron pipe systems
• Hex body profile for secure wrench engagement during installation
• 4-inch female to 1.5-inch male threaded reduction
• Black finish consistent with standard black malleable iron fittings
• Weighs 2.57 pounds — appropriate for heavy-duty piping applications

Compatibility

Designed as an OEM-style replacement or direct-fit bushing for standard NPT threaded iron pipe systems requiring a 4-inch to 1.5-inch reduction.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing and mechanical codes, including IPC and IFGC requirements where gas service is involved. Shut off and depressurize the pipe system completely before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement. Use a pipe wrench on the hex body to achieve a secure, leak-free connection without over-stressing the fitting.

Technical Specifications

• Material: Malleable Iron
• Finish: Black
• Size: 4 x 1.5 inches
• Weight: 2.57 pounds
• UPC: 777701351594

Standard Information

• Brand: BMI USA
• Manufacturer Part Number: 35159