Value Collection ZMSCV70239 Viton O-ring Dash 239 5-pack

Product Description

The VALUE COLLECTION ZMSCV70239 is a Dash 239 Viton (fluoroelastomer) O-ring sold in a pack of five. It features a round cross section with a 3.625-inch inside diameter, 3.875-inch outside diameter, and a 0.125-inch thickness. Rated at 70 Shore hardness, this O-ring handles continuous service from -15 degrees F to 400 degrees F, making it well-suited for high-temperature and chemically demanding environments. Licensed plumbers, pipefitters, HVAC technicians, and industrial maintenance professionals install this type of seal in fluid and gas systems where standard rubber compounds fall short.

This O-ring is designed for static and dynamic sealing applications involving petroleum products, fuels, oils, and a wide spectrum of chemical media. Its low gas permeability and low compression set make it appropriate for vacuum service as well as pressurized fluid systems. Typical installation scenarios include pump seals, valve bodies, hydraulic fittings, and refrigeration or HVAC service connections where elevated temperatures or chemical exposure would degrade standard nitrile or EPDM seals.

Key Features

• Fluoroelastomer (Viton) material provides broad chemical compatibility with petroleum products, fuels, and industrial fluids
• Operating temperature range of -15 degrees F to 400 degrees F suits high-heat service environments
• 70 Shore hardness (Hard rating) delivers low compression set for long-term sealing integrity
• Low gas permeability rated for vacuum service applications
• Round cross section conforms to standard O-ring groove geometry for straightforward replacement
• Pack of 5 units per order for service van stock or multi-point repairs

Compatibility

Designed as a standard Dash 239 O-ring replacement for static and dynamic sealing applications compatible with petroleum products, fuels, oils, and systems requiring high-temperature fluoroelastomer seals.

Installation Notes

Depressurize and drain the system fully before removing the old O-ring. Inspect the groove for scoring or debris that could compromise the seal. Apply a compatible lubricant to the O-ring before seating to prevent tearing during assembly. Follow applicable plumbing or mechanical codes for the system type being serviced.