Asc Engineered Solutions 4.NMC Pipe Coupling 4 Inch Fnpt 150 Lb

Product Description

The ASC Engineered Solutions 4.NMC is a straight pipe coupling rated at 150 lb, designed for joining sections of threaded pipe in industrial and commercial piping systems. Built from malleable iron with a galvanized finish, it provides corrosion resistance in demanding environments. The coupling features female national pipe taper (FNPT) threads on both ends to accept standard 4-inch nominal threaded pipe. It is a domestically produced fitting suitable for gas, water, and mechanical piping applications where a reliable, pressure-rated connection is required. Licensed plumbers and pipefitters are the primary installers for fittings of this class and size.

This coupling is used in 4-inch nominal threaded pipe systems found in commercial plumbing, industrial process piping, fire protection supply lines, and mechanical room installations. Its galvanized malleable iron construction makes it appropriate for both interior and sheltered exterior applications where moisture or mild corrosive exposure is a concern. The 150 lb pressure rating aligns with standard Schedule 40 threaded pipe system requirements common in these environments.

Key Features

• 4-inch nominal size with FNPT threads on both ends for standard threaded pipe connections
• 150 lb pressure class rating suitable for Schedule 40 threaded pipe systems
• Malleable iron construction provides impact resistance and durability under mechanical stress
• Galvanized finish delivers corrosion resistance in wet and moderately corrosive environments
• Domestically produced fitting meeting standard pipe fitting dimensional requirements

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 4-inch nominal threaded pipe systems using 150 lb malleable iron fittings with FNPT connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with the applicable International Plumbing Code (IPC) or International Fuel Gas Code (IFGC) requirements for the system type. Shut off and depressurize the pipe system completely before removing or installing any fitting. Apply appropriate thread sealant or PTFE tape to the male pipe threads before assembly. Do not over-tighten by using a cheater bar or power impact tool, as this can crack the fitting body.

Technical Specifications

• Nominal Size: 4 inches
• End Style: FNPT (Female National Pipe Taper) both ends
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized
• Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 4.NMC