GASKET, VIRGIN PTFE, 4.000" 150# RF

Part number 13800RF125A0400 is a white PTFE (Teflon) Class 150 ring face Flange Gasket supplied with a 4 inch nominal pipe size, a Class 150 pressure rating, and a thickness of 0.125 inch. A flange gasket provides a replaceable sealing element at every flanged pipe connection. Supplementary detail from the product record: NPS, 0.125 THK.

PTFE (Teflon) is specified here for non-stick, non-contaminating surface characteristics and very wide continuous service temperature range. This material stands up to solvents, steam, and nearly all industrial chemicals. It is not the right choice where service requiring elastic recovery or molten alkali metals are present.

Maintenance and OEM teams specify it across semiconductor fabrication, chemical processing, and laboratory equipment.

This item is sold individually under part number 13800RF125A0400. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.