Value Collection ZMSCV2.5X18 Viton O-ring 18 in Id

Product Description

The VALUE COLLECTION ZMSCV2.5X18 is a large-diameter Viton (fluoroelastomer) O-ring designed for demanding sealing applications across industrial, HVAC, plumbing, and fluid-handling systems. Measuring 18 inches inside diameter, 23 inches outside diameter, and 2.5 inches thick, this round-cross-section ring provides a reliable static or dynamic seal where standard rubber would fail. A 75 Shore A hardness rating puts it in the hard range, reducing compression set under sustained load. Rated from -15 degrees F to 400 degrees F, it holds up in both cold-ambient and high-temperature service environments. Plumbers, pipefitters, and industrial maintenance technicians install this ring wherever chemical and thermal resistance are critical.

This O-ring suits large-bore flanged connections, valve bonnets, pump housings, and pressure vessel covers in commercial and industrial settings. Its fluoroelastomer compound is compatible with petroleum products, hydraulic fluids, and a wide spectrum of chemical media, making it appropriate for fuel systems, process piping, and vacuum service applications. The low gas permeability characteristic is especially useful in vacuum or low-leakage gas-handling assemblies. Package quantity is 10 rings per package with a minimum order quantity of 1.

Key Features

• Fluoroelastomer (Viton) compound rated to 400 degrees F continuous service
• Hard 75 Shore A durometer for low compression set under sustained clamping load
• Good resistance to petroleum products and a wide range of chemical media
• Low gas permeability makes it suitable for vacuum service applications
• Round cross section for predictable sealing in standard O-ring grooves
• Black color; sold in packages of 10

Compatibility

Designed as a standard round-cross-section O-ring for large-bore industrial sealing applications compatible with petroleum products and systems requiring high-temperature fluoroelastomer seals.

Installation Notes

Installation is performed by licensed pipefitters, plumbers, or qualified industrial maintenance technicians. Depressurize and isolate the system completely before removing the existing seal and seating the new O-ring. Inspect the groove for burrs, corrosion, or dimensional damage before installation. Do not use petroleum-based lubricants with non-petroleum-compatible sealing surfaces; confirm lubricant compatibility with the system media before assembly.