Value Collection ZMSCV70347 Viton O-ring Dash 347

Product Description

The VALUE COLLECTION ZMSCV70347 is a Dash 347 Viton fluoroelastomer O-ring designed for static and dynamic sealing applications in demanding service environments. With a 4.25-inch inside diameter, 4.625-inch outside diameter, and a 0.1875-inch round cross section, this O-ring delivers a reliable seal across a wide temperature range of -15 degrees F to 400 degrees F. The fluoroelastomer compound provides low compression set and low gas permeability, making it well suited for vacuum service and high-temperature fluid containment. Licensed trades and maintenance professionals install this ring as an OEM-style replacement or new installation component wherever a Dash 347 dimension is specified.

This O-ring is used across residential and commercial HVAC, plumbing, pool, and industrial fluid-handling systems where petroleum-based fluids, hydraulic oils, or high-temperature gases are present. Its wide chemical compatibility makes it a common choice for pump housings, valve bodies, manifold connections, and refrigerant-side components requiring a hard 70-durometer seal. The round cross-section profile seats consistently in standard Dash 347 grooves, reducing installation errors during field service.

Key Features

• Fluoroelastomer (Viton) compound rated for continuous service from -15 degrees F to 400 degrees F
• 70 Shore A hardness (Hard rating) for reliable compression and low blowout risk
• Low compression set maintains sealing force over extended service intervals
• Low gas permeability suits vacuum service and pressurized fluid containment
• Good resistance to petroleum products and a wide spectrum of chemical compatibility
• Round cross-section profile fits standard Dash 347 groove dimensions without modification

Compatibility

Designed as a standard Dash 347 O-ring replacement compatible with petroleum products and systems requiring fluoroelastomer sealing material. Compatible materials include petroleum-based fluids and hydraulic media as noted in product specifications.

Installation Notes

Installation should be performed by a qualified technician familiar with the system being serviced. Depressurize and de-energize the system fully before removing any existing seals or opening fluid circuits. Lightly lubricate the O-ring with a compatible fluid or assembly lubricant before seating to prevent tearing during installation. Inspect the groove for burrs or corrosion before installing the new ring to ensure a proper, leak-free seal.