Value Collection ZMSCV70255 Viton O-ring Dash 255

Product Description

The VALUE COLLECTION ZMSCV70255 is a Dash 255 Viton (fluoroelastomer) O-ring with a round cross section, designed for static and dynamic sealing applications in fluid and gas systems. With a 5.625-inch inside diameter, 5.875-inch outside diameter, and 0.125-inch thickness, this O-ring seats precisely in standard Dash 255 grooves. The fluoroelastomer compound delivers a wide operating temperature range of -15 degrees F to 400 degrees F, low compression set, and low gas permeability. Licensed plumbers, HVAC technicians, and industrial mechanics install this part wherever high-temperature or petroleum-fluid resistance is required.

This O-ring is suited for use in petroleum-based fluid systems, hydraulic circuits, fuel-handling assemblies, and vacuum service applications. Its chemical compatibility makes it a common choice in commercial HVAC refrigerant circuits, plumbing shutoff valve bodies, and pump seal assemblies where standard nitrile compounds fall short of temperature or chemical demands. The black fluoroelastomer compound resists degradation from a broad spectrum of oils, fuels, and solvents encountered in trade service work.

Key Features

• Fluoroelastomer (Viton) compound rated from -15 degrees F to 400 degrees F
• Low compression set maintains sealing force over extended service cycles
• Low gas permeability suitable for vacuum service applications
• Good resistance to petroleum products, oils, fuels, and a wide spectrum of chemicals
• Round cross section for standard Dash 255 groove fitment
• 70 durometer hardness (Hard rating) for dimensional stability under pressure

Compatibility

Designed as an OEM-style replacement or service O-ring for any application requiring a standard Dash 255 round cross-section O-ring in fluoroelastomer material. Compatible with petroleum products and systems requiring high-temperature elastomer seals.

Installation Notes

Depressurize and drain the system completely before removing the old O-ring and installing the replacement. Inspect the groove for nicks, corrosion, or debris that could compromise the seal. A light film of compatible lubricant — matched to the system fluid — may be applied to ease installation and prevent tearing during assembly. Follow applicable codes such as IPC or IFGC for plumbing and gas system seal replacements.