Value Collection ZMSCTST020 Ptfe O-ring Dash 020 25 Pack

Product Description

The VALUE COLLECTION ZMSCTST020 is a Dash 020 O-ring manufactured from polytetrafluoroethylene (PTFE), a high-performance fluoropolymer suited for demanding sealing applications. This O-ring features a rectangular cross section measuring 0.898 inches inner diameter, 1.000 inch outer diameter, and 0.047 inches thick. With a durometer hardness of 55 (medium) and a working temperature range of -65 to 500 degrees F, it holds up in high-heat and chemically aggressive environments where standard rubber O-rings degrade. Each package contains 25 pieces. HVAC technicians, plumbers, and industrial maintenance professionals use PTFE seals where chemical resistance and wide thermal tolerance are required.

This O-ring is appropriate for use in fluid handling, refrigeration, chemical process lines, and pneumatic or hydraulic fittings that demand broad chemical compatibility. The PTFE material resists most acids, solvents, and caustic media. Typical installation scenarios include sealing pipe fittings, valve stems, and mechanical connections in both residential and light commercial systems. The rectangular cross section provides consistent seating in grooves machined to Dash 020 standard dimensions.

Key Features

• PTFE material provides excellent chemical resistance across a broad range of acids, solvents, and refrigerants
• Operating temperature range of -65 to 500 degrees F suits both cryogenic and high-heat service
• Dash 020 standard sizing: 0.898 inches ID, 1.000 inch OD, 0.047 inches thick
• Rectangular cross section for stable groove seating
• Medium durometer hardness rating of 55 for reliable compression sealing
• Sold in a 25-piece package for service inventory or repeat maintenance tasks

Compatibility

Designed as a standard Dash 020 replacement O-ring for any fitting or component machined to Dash 020 groove dimensions requiring a PTFE seal.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or mechanical maintenance professionals. Depressurize and isolate the line or fitting before removing the old O-ring and installing the replacement. Ensure the groove is clean and free of debris before seating the new O-ring. Do not stretch or nick the O-ring during installation, as PTFE is less elastic than rubber and will not recover from deformation.