Value Collection ZMSCE70431 O-ring Dash 431 Epdm 70

Product Description

The VALUE COLLECTION ZMSCE70431 is a Dash 431 EPDM O-ring designed for static and dynamic sealing applications that demand resistance to elevated temperatures and aggressive fluids. Measuring 5.25 inches inside diameter, 5.75 inches outside diameter, and 0.25 inches thick, this round cross-section ring carries a Shore A hardness of 70 and is rated for continuous service from -65 degrees F to 300 degrees F. It is installed by licensed plumbers, HVAC technicians, hydraulic system mechanics, and industrial maintenance trades wherever a reliable EPDM seal is required.

This O-ring is suited for hot water systems, steam service, and phosphate ester type hydraulic fluid circuits. It offers excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems, making it a fit for aerospace ground-support and MRO applications as well as industrial plumbing and HVAC hydronic systems. The package contains 7 pieces per unit, with a minimum order quantity of 1.

Key Features

• EPDM compound provides strong resistance to hot water and steam service
• Compatible with phosphate ester hydraulic fluids and Skydrol-type aviation hydraulic fluids
• Wide service temperature range: -65 degrees F to 300 degrees F
• 70 Shore A hardness rating for firm, reliable seating under compression
• Round cross-section profile for consistent sealing contact in standard O-ring grooves
• Packaged in quantities of 7 pieces per unit

Compatibility

Compatible sealing media include hot water, steam, and phosphate ester type hydraulic fluids. Suitable for use in standard Dash 431 O-ring grooves per industry dimensional standards.

Installation Notes

Depressurize and drain the system fully before removing the existing seal and installing a replacement O-ring. Lubricate the O-ring with a fluid compatible with EPDM prior to installation to prevent tearing during fitment. Do not use petroleum-based lubricants with EPDM, as they will cause the material to swell and degrade. Follow applicable plumbing, hydraulic, or mechanical codes for the system being serviced.