Value Collection ZMSCV70242 Viton O-ring Dash 242 5-pack

Product Description

The VALUE COLLECTION ZMSCV70242 is a Dash 242 Viton (fluoroelastomer) O-ring packaged in a quantity of 5. It measures 4 inches inside diameter, 4.25 inches outside diameter, and 0.125 inches thick with a round cross section. The fluoroelastomer compound delivers a working temperature range of -15 degrees F to 400 degrees F, making it well suited for high-heat sealing applications. The 70-durometer hardness rating places this ring in the hard classification, providing low compression set and resistance to petroleum-based fluids. Plumbers, HVAC technicians, and industrial maintenance trades use this ring wherever a reliable, heat-tolerant static or dynamic seal is required.

This O-ring is appropriate for use in residential and commercial plumbing, HVAC refrigeration circuits, hydraulic assemblies, and general fluid-handling systems that contact petroleum products. The fluoroelastomer material also supports vacuum service applications due to its low gas permeability. The wide chemical compatibility spectrum makes it a practical stock item for shops servicing multiple system types. Each order contains 5 rings, and the minimum order quantity is 1 unit.

Key Features

• Fluoroelastomer (Viton-type) compound with good resistance to petroleum products
• Operating temperature range: -15 degrees F to 400 degrees F
• 70-durometer hardness (hard rating) with low compression set
• Low gas permeability — suitable for vacuum service applications
• Round cross section, Dash 242 standard sizing
• Wide spectrum of chemical compatibility for multi-system use

Compatibility

Designed as a standard Dash 242 O-ring replacement compatible with systems and assemblies that accept a 4-inch ID, 4.25-inch OD, 0.125-inch cross section seal, particularly where petroleum-product exposure or elevated temperatures are present.

Installation Notes

Power down or depressurize the system fully before removing the old O-ring. Clean the groove and mating surfaces of debris and old sealing compound before seating the new ring. Apply a compatible lubricant to the O-ring prior to installation to prevent tearing during assembly. Consult applicable plumbing or mechanical codes (IPC, ASME) for required inspection and pressure testing after reassembly.