Matco-norca zmbcpr0400 Reducer Coupling 3/4x1/8 150PSI

Product Description

The MATCO-NORCA zmbcpr0400 is a black malleable iron reducer coupling designed to connect two female-threaded pipe ends of different diameters in a single inline fitting. Sized at 3/4 inch on the larger end and 1/8 inch on the smaller end, it steps down pipe size without additional adapters. Rated at 150 PSI and conforming to ASTM A197/A197M, this fitting is built for low-pressure gas, water, and air distribution systems. Licensed plumbers and pipefitters are the typical installers for this class of fitting.

This reducer coupling is suited for residential and light commercial piping applications where a threaded pipe run must transition between a 3/4 inch and 1/8 inch line. Common scenarios include branch takeoffs on gas distribution manifolds, compressed air systems, and water supply piping. The female-threaded connections on both ends accept standard male-threaded pipe on each side of the transition. Its black finish is standard for gas-service malleable iron fittings in residential and commercial settings.

Key Features

• 3/4 inch x 1/8 inch reducing configuration in a single fitting body
• Female threaded x female threaded end connections for inline installation
• 150 PSI pressure rating suitable for low-pressure gas, air, and water service
• Temperature rated to 350 degrees F for broad system compatibility
• Malleable iron construction per ASTM A197/A197M for durability and machinability
• Lead-free construction meeting applicable plumbing and health code standards
• Listed to UL, FM, and ANSI/ASME B16.3; manufactured under ISO 9001 quality system

Compatibility

Designed as an OEM-style replacement and general-use fitting for threaded malleable iron piping systems conforming to ANSI/ASME B16.3 Class 150 standards.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with local mechanical and plumbing codes, including applicable IFGC or IPC requirements. Shut off and depressurize the pipe system fully before removing any existing fitting or threading in this coupling. Apply an appropriate thread sealant or PTFE tape to the male threads being engaged, following the sealant manufacturer and code requirements for the service type. Do not over-tighten; use a pipe wrench with a backup wrench on the adjoining pipe to avoid stressing the fitting or the connected piping.

Technical Specifications

• Fitting Type: Reducer Coupling
• Size A: 3/4 inches
• Size B: 1/8 inches
• End Connection: Female Threaded x Female Threaded
• Material: Malleable Iron
• Material Specification: ASTM A197/A197M
• Finish: Black
• Pressure Rating: 150 psi
• Temperature Rating: 350 degrees F
• Applicable Standards: UL, FM, ANSI/ASME B16.3, ISO 9001
• Lead-Free: Yes

Standard Information

• Brand: MATCO-NORCA
• Manufacturer Part Number: zmbcpr0400