Value Collection ZMSCE70272 Epdm O-ring Dash 272 Pack of 4

Product Description

The VALUE COLLECTION ZMSCE70272 is a Dash 272 EPDM O-ring sold in a pack of 4, designed for static and dynamic sealing applications in systems handling hot water, steam, and phosphate ester hydraulic fluids. The round cross-section ring measures 9.5 inches inside diameter, 9.75 inches outside diameter, and 0.125 inches thick. With a Shore A hardness rating of 70, it maintains a firm, reliable seal across a wide service temperature range. HVAC technicians, plumbers, and industrial maintenance professionals install this O-ring as a sealing element in piping flanges, valve bodies, and fluid-handling assemblies.

This O-ring is well suited for residential and commercial applications where exposure to hot water and steam is expected. It is also rated for use with phosphate ester type hydraulic fluids, making it a practical choice for facilities maintenance and equipment servicing in commercial settings. Each package contains 4 rings, allowing for multiple repairs or stocking of spares. The EPDM compound offers strong resistance to Skydrol fluids used in commercial aircraft hydraulic systems, broadening its range of compatible service environments.

Key Features

• EPDM compound rated for hot water, steam, and phosphate ester hydraulic fluids
• Dash 272 sizing: 9.5 inches ID, 9.75 inches OD, 0.125 inches thick
• 70 Shore A hardness for firm sealing under compression
• Service temperature range from -65 degrees F to 300 degrees F
• Excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems
• Round cross section; sold in a pack of 4

Compatibility

Compatible with systems handling hot water, steam, and phosphate ester type hydraulic fluids. Suitable as a replacement Dash 272 O-ring in flanged piping, valve assemblies, and fluid-handling equipment that accept standard AS568 Dash 272 dimensioned seals.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified maintenance professionals. Always de-energize the system, relieve all pressure, and drain the line before removing the old O-ring or installing a replacement. Inspect the seating groove for nicks or debris that could compromise the seal. Avoid using petroleum-based lubricants with EPDM compounds; use a compatible water-based or silicone lubricant during installation.