Value Collection ZMSCV70155 Viton O-ring Dash 155 2-pack

Product Description

The VALUE COLLECTION ZMSCV70155 is a Viton (fluoroelastomer) O-ring sized to Dash 155 with a 4.0000-inch inside diameter, 4.1880-inch outside diameter, and a 0.0937-inch (3/32 inch) round cross section. Rated at 70 Shore A hardness, this O-ring is built for sealing applications that demand resistance to petroleum products, elevated temperatures up to 400 degrees F, and a wide range of chemical exposure. The fluoroelastomer compound also provides low compression set, low gas permeability, and suitability for vacuum service. Each package contains 2 O-rings. Licensed plumbers, HVAC technicians, and pipefitters typically install this type of seal in fluid-handling, refrigerant, and fuel-system assemblies.

This O-ring is suited for residential and commercial applications where petroleum-based fluids, fuels, or high-temperature gases contact sealing surfaces. Typical installations include pump flanges, valve bodies, pipe unions, and threaded fittings where a standard Dash 155 groove dimension is required. Its temperature range of -15 degrees F to 400 degrees F makes it appropriate for both outdoor and high-heat service environments. The fluoroelastomer material performs reliably in environments where nitrile or EPDM compounds degrade prematurely.

Key Features

• Fluoroelastomer (Viton) compound offers broad chemical compatibility including petroleum products
• Temperature range: -15 degrees F to 400 degrees F for high-heat and cold-climate service
• 70 Shore A hardness rating provides a hard, low-compression-set seal under sustained clamping load
• Round cross section conforms to standard Dash 155 O-ring groove dimensions
• Low gas permeability and vacuum service suitability for sealed-system applications
• Sold in a 2-piece package per order unit

Compatibility

Designed as an OEM-style replacement or service O-ring for any assembly using a standard Dash 155 O-ring groove. Compatible material list includes petroleum products. Not FDA approved; not intended for food-contact or potable-water applications.

Installation Notes

Installation of this O-ring is typically performed by licensed plumbers, HVAC technicians, or pipefitters. De-pressurize and drain the system fully before disturbing any sealing surface. Lightly lubricate the O-ring with a compatible fluid or grease before seating it in the groove to prevent tearing and ensure even seating. Do not over-stretch the O-ring during installation, as fluoroelastomer compounds have limited elongation compared to softer compounds.