Sigma 33RC1014012C Reducing Coupling 1-1/2x1-1/4 in Fnpt 150lb

Product Description

The SIGMA 33RC1014012C is a black malleable iron pipe reducing coupling designed to connect pipes of two different diameters in threaded piping systems. It features female NPT (FNPT) threading on both ends, accepting a 1-1/2 inch nominal pipe on one side and a 1-1/4 inch nominal pipe on the other. Rated at 150 lb, this coupling is built for standard-pressure service in gas, water, and general-purpose piping installations. Licensed plumbers and pipefitters install this fitting as part of threaded iron pipe assemblies in both residential and commercial applications.

This reducing coupling is suited for use in low- to medium-pressure threaded pipe systems including natural gas distribution, steam service at 150 lb class, compressed air lines, and water supply piping. It is a common fitting in mechanical rooms, boiler rooms, and industrial process piping where a transition from 1-1/2 inch to 1-1/4 inch nominal pipe is required. The black finish indicates it is not galvanized, making it the standard choice for gas piping applications per applicable codes.

Key Features

• Reduces from 1-1/2 inch to 1-1/4 inch nominal pipe in a single inline fitting
• FNPT threading on both ends for standard threaded iron pipe assembly
• 150 lb pressure class rating suitable for gas, air, steam, and water service
• Malleable iron construction provides toughness and resistance to cracking under mechanical stress
• Black (non-galvanized) finish appropriate for natural gas and propane piping systems

Compatibility

Designed as an OEM-style threaded fitting compatible with standard 1-1/2 inch and 1-1/4 inch nominal NPT iron pipe systems rated at 150 lb class service.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or IFGC. Shut off and depressurize the piping system completely before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape rated for the intended service medium before making up the joint. Do not over-tighten threaded connections, as malleable iron fittings can crack if excessive force is applied.

Technical Specifications

• Nominal Size: 1-1/2 x 1-1/4 inches
• End Style: FNPT (Female National Pipe Thread) both ends
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Black (non-galvanized)

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 33RC1014012C