Asc Engineered Solutions 310540000 Pipe Coupling 3 in

Product Description

The ASC Engineered Solutions 310540000 is a FIG 1166 series malleable iron pipe coupling rated for 3-inch nominal pipe in FNPT end style. This fitting is built to handle demanding piping applications, carrying a 300 lb class pressure rating of 1000 psi and a working temperature range of -20 to 150 degrees F. Finished in black oxide, it measures 4.125 inches in length and is rated for SCH 80/XH pipe schedules. Licensed plumbers and pipefitters install this coupling where a reliable, threaded iron joint is required in gas, steam, or fluid distribution systems.

This coupling is appropriate for residential and commercial piping installations where Class 300 malleable iron fittings are specified. Typical applications include gas distribution lines, steam systems, and general industrial fluid piping. The FNPT thread pattern allows direct connection to standard NPT-threaded pipe ends. The black oxide finish is suited for black iron gas line assemblies and similar service environments where a galvanized finish is not required.

Key Features

• Class 300 rating with a 1000 psi working pressure capacity
• 3-inch nominal FNPT end style for standard NPT threaded pipe
• SCH 80/XH schedule compatibility for heavier wall pipe
• Black oxide malleable iron construction for gas and steam service
• 4.125-inch body length in the FIG 1166 series profile
• Conforms to ASME B16.3; gas tested at a minimum of 100 psi per manufacturer standards

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Class 300 malleable iron threaded piping systems using 3-inch nominal FNPT connections conforming to ASME B16.3.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IFGC or IPC. Shut off and depressurize the line completely before disassembling or threading any fittings. Apply an appropriate thread sealant or PTFE tape rated for the service medium to all NPT threads before assembly. Do not over-tighten threaded connections; follow standard hand-tight-plus-turns practice as specified by applicable code for the pipe size and service type.

Technical Specifications

• Series: FIG 1166
• Nominal Pipe Size: 3 inches
• End Style: FNPT
• Pressure Rating: 300 lb class, 1000 psi
• Pipe Schedule Compatibility: SCH 80/XH
• Body Length: 4.125 inches
• Temperature Range: -20 to 150 degrees F
• Material: Malleable Iron
• Finish: Black Oxide
• Weight: 7.3 pounds
• Standard: ASME B16.3

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 310540000