Product Description
The MATCO-NORCA zmbbu0706 is a black malleable iron hex bushing used to reduce a 1-1/2 inch female pipe thread to a 1-1/4 inch male pipe thread. Malleable iron construction gives this fitting the ductility needed to handle mechanical stress and vibration in threaded pipe assemblies. The black iron finish is standard for gas distribution and general-purpose piping applications. This bushing is a common component in plumbing and gas piping rough-in work installed by licensed plumbers and pipefitters.
This bushing is suited for residential and light commercial piping systems where a threaded reduction is needed between two different pipe sizes. Typical applications include natural gas supply lines, propane systems, and black iron pipe assemblies in mechanical rooms, utility spaces, and equipment connections. It accepts standard NPT threads on both ends.
Key Features
- Malleable iron construction for durability and resistance to mechanical stress
- Black iron finish compatible with gas and general-purpose piping systems
- 1-1/2 inch female NPT inlet reduces to 1-1/4 inch male NPT outlet
- Hex body allows standard wrench engagement for installation
- Standard NPT thread form for compatibility with common threaded pipe fittings
Compatibility
Designed as a standard threaded reducer bushing for use in black iron pipe systems following NPT thread standards in residential and light commercial installations.
Installation Notes
Installation is performed by a licensed plumber or pipefitter using pipe wrenches or an appropriately sized wrench on the hex body. Apply an approved thread sealant or PTFE tape to the male threads before assembly. On gas lines, ensure all work conforms to applicable local codes and IFGC requirements, and pressure-test the assembled system before returning it to service. Do not overtighten malleable iron fittings, as the material can crack under excessive torque.
Technical Specifications
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Inlet Size: 1-1/2 inches (female NPT)
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Outlet Size: 1-1/4 inches (male NPT)
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Material: Malleable iron
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Finish: Black iron
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Thread Type: NPT
Standard Information
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Brand: MATCO-NORCA
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Manufacturer Part Number: zmbbu0706