Usa Industrials BULK-FG-776 Buna-n Flange Gasket 3/4 in

Product Description

The USA INDUSTRIALS BULK-FG-776 is a full face Buna-N flange gasket rated for Class 150 service on 3/4 inch pipe. Full face gaskets span the entire flange face, including bolt holes, and seat against flat-face flanges to create a reliable, leak-resistant seal. Buna-N (nitrile rubber) construction provides strong resistance to petroleum-based oils, water, and mild chemicals, making this gasket a go-to choice for plumbing, hydraulic, and light industrial piping systems. At 1/16 inch thick, the material compresses evenly under bolt load, conforming to minor surface irregularities better than semi-metallic or aramid alternatives.

This gasket is suited for residential and commercial piping installations where flat-face Class 150 flanges are used. Typical applications include water service lines, low-pressure oil lines, and general fluid handling systems. Plumbers and pipefitters install this gasket when connecting flanged valves, pumps, strainers, or other flanged components at 3/4 inch pipe size. The all-rubber design makes it well suited for systems that require periodic disassembly and re-gasketing without risk of flange face damage.

Key Features

• Full face design includes bolt holes for proper alignment on flat-face Class 150 flanges
• Buna-N nitrile rubber construction resists petroleum oils, water, and mild chemicals
• More compressible and resilient than aramid sheet gaskets, reducing risk of leaks at lower bolt torques
• Class 150 pressure rating suitable for standard low-pressure piping service
• 1/16 inch thickness provides consistent sealing under standard flange bolt loads

Compatibility

Designed as an OEM-style replacement or new-installation gasket for 3/4 inch Class 150 flat-face pipe flanges in plumbing and light industrial piping systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable plumbing codes such as the IPC. Depressurize and drain the piping system fully before breaking any flanged connection. Center the gasket carefully over the flange face so bolt holes align before hand-tightening fasteners, then bring bolts to load in a cross-pattern sequence to ensure even compression. Do not reuse a gasket that has been previously compressed under service conditions.