Asc Engineered Solutions 390079200 Buna-nitrile Gasket 4 in

Product Description

The ASC Engineered Solutions 390079200 is a 4-inch Buna-Nitrile gasket designed for use with Gruvlok 7000 and 7001 grooved pipe couplings. The gasket forms the pressure-retaining seal inside the coupling housing, gripping the grooved pipe ends to maintain a leak-free joint across a range of piping system pressures and temperatures. At 0.10 pounds, it is a lightweight but critical component in grooved mechanical piping systems. Licensed pipefitters, plumbers, and mechanical contractors install this gasket during new construction and retrofit work on grooved-end piping assemblies in commercial and industrial applications.

This gasket is sized for 4-inch pipe and is compatible with Gruvlok 7000 and 7001 grooved couplings. Grooved piping systems are common in commercial HVAC hydronic loops, fire protection systems, and industrial process piping where fast, re-enterable mechanical joints are preferred over welded or threaded connections. Buna-Nitrile (NBR) elastomer is a standard gasket material suited for water, air, and a broad range of petroleum-based fluids.

Key Features

• Buna-Nitrile (NBR) elastomer construction for compatibility with water, air, and petroleum-based media
• Sized for 4-inch grooved pipe couplings
• Designed to fit Gruvlok 7000 and 7001 coupling housings
• Lightweight at 0.10 pounds for easy handling during installation
• Provides the primary pressure seal in the grooved coupling assembly

Compatibility

Designed for use with Gruvlok 7000 and 7001 grooved pipe couplings in 4-inch pipe size configurations.

Installation Notes

This gasket is installed by licensed pipefitters or plumbers as part of a grooved mechanical coupling assembly. De-pressurize and drain the piping system before disassembling any grooved coupling for gasket replacement. Inspect the pipe groove and coupling housing for damage or debris before seating the new gasket. Follow the coupling manufacturer torque specifications for the housing bolts and lubricate the gasket per the coupling manufacturer guidance.

Technical Specifications

• Fitting Size: 4 inches
• Gasket Material: Buna-Nitrile (NBR)
• Fitting Material: Ductile Iron (coupling housing reference)
• Item Weight: 0.10 pounds

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 390079200