Usa Industrials BULK-FG-1145 Flange Gasket 1 in Ptfe

Product Description

The USA INDUSTRIALS BULK-FG-1145 is a full face flange gasket made from polytetrafluoroethylene (PTFE) for use in pipe flange assemblies requiring a chemically resistant, low-friction seal. Designed for 1 inch nominal pipe size, the gasket measures 1-5/16 inches inside diameter and 4-1/4 inches outside diameter, with a thickness of 1/16 inch. The white PTFE construction resists a broad range of aggressive chemicals and maintains a reliable seal across an operating temperature range of -450 degrees F to 500 degrees F. Plumbers, pipefitters, and industrial maintenance technicians install this gasket where standard rubber or compressed fiber materials are incompatible with the process fluid.

This flange gasket suits residential and commercial plumbing, industrial process piping, and chemical transfer systems where PTFE is specified for corrosion resistance or purity requirements. It is appropriate for flanged connections on 1 inch pipe where the service conditions demand a non-reactive, low-deformation sealing material. Typical applications include pump flanges, valve bonnets, and inline instrumentation connections in water treatment, chemical processing, and industrial HVAC piping.

Key Features

• PTFE material provides broad chemical resistance and non-stick surface for easy flange separation at service
• Rated from -450 degrees F to 500 degrees F for wide-range temperature service
• 1-5/16 inch ID and 4-1/4 inch OD sized for 1 inch nominal pipe flanges
• 1/16 inch thickness for standard low-compression flange face applications
• White color allows visual identification and indicates virgin PTFE construction

Compatibility

Designed as an OEM-style replacement or direct-fit gasket for 1 inch nominal pipe size flange assemblies requiring PTFE sealing material.

Installation Notes

Installation is typically performed by licensed plumbers or pipefitters in accordance with applicable IPC or ASME B16 flange standards. Isolate and fully depressurize the line and drain any residual fluid before breaking the flange joint. Inspect the flange faces for corrosion, scoring, or debris before seating the new gasket. Tighten flange fasteners in a cross-pattern sequence to achieve even gasket compression without distortion.