Value Collection ZMSCV70172 Viton O-ring Dash 172

Product Description

The VALUE COLLECTION ZMSCV70172 is a Dash 172 Viton fluoroelastomer O-ring designed for static and dynamic sealing applications in fluid and gas handling systems. It measures 8.25 inches inside diameter, 8.438 inches outside diameter, and 0.0937 inches thick with a round cross section. The 70-durometer hardness rating places it in the hard range, providing low compression set and high resistance to elevated temperatures up to 400 degrees F. Plumbers, HVAC technicians, and industrial maintenance professionals install this O-ring wherever a reliable fluoroelastomer seal is required against petroleum-based media and chemically aggressive fluids.

This O-ring is suited for use in petroleum product service, vacuum service, and high-temperature sealing applications. Its wide chemical compatibility and low gas permeability make it a practical choice for fuel systems, hydraulic circuits, refrigeration components, and industrial process equipment. The fluoroelastomer compound maintains a usable seal from -15 degrees F up to 400 degrees F, covering most residential and light commercial HVAC and plumbing service conditions. Sold in a package quantity of 2.

Key Features

• Fluoroelastomer (Viton) compound for broad chemical resistance including petroleum products
• Operating temperature range of -15 degrees F to 400 degrees F
• 70 durometer hardness with low compression set for reliable long-term sealing
• Low gas permeability and good performance in vacuum service
• Round cross section for standard groove fitment
• Black color; package quantity of 2 per order

Compatibility

Designed as an OEM-style replacement Dash 172 O-ring for sealing applications requiring a fluoroelastomer compound compatible with petroleum products, hydraulic fluids, and chemically aggressive media in plumbing, HVAC, and industrial systems.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. Depressurize and drain the affected system completely before removing the old O-ring. Inspect the groove for nicks, burrs, or corrosion before seating the new ring. Apply a compatible lubricant to the O-ring to ease installation and reduce the risk of tearing; do not use petroleum-based lubricants in applications where they are incompatible with the system media.