Value Collection ZMSCE70426 O-ring Dash 426 Epdm 70A

Product Description

The VALUE COLLECTION ZMSCE70426 is a Dash 426 EPDM O-ring with a round cross section, designed for sealing applications that demand reliable chemical and thermal resistance. With a 4.625-inch inside diameter, 5.125-inch outside diameter, and 0.25-inch thickness, this O-ring carries a 70 durometer hardness rating and is molded from ethylene propylene diene monomer (EPDM) compound. It performs across a wide temperature range of -65 degrees F to 300 degrees F, making it suitable for demanding fluid and steam environments. Licensed technicians across plumbing, HVAC, hydraulic, and industrial maintenance trades install this part as a standard sealing component.

This O-ring is well suited for residential and commercial applications involving hot water systems, steam lines, and phosphate ester type hydraulic fluids. It also demonstrates excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems. It is also recommended for use with organic solvents and chemicals where EPDM compound compatibility is confirmed. The round cross section fits standard Dash 426 grooves, making it a straightforward drop-in for existing installations requiring this dash size. Sold in a package of 9.

Key Features

• Dash 426 designation: 4.625-inch ID, 5.125-inch OD, 0.25-inch cross section thickness
• EPDM compound provides excellent resistance to hot water, steam, and phosphate ester hydraulic fluids
• Rated for service from -65 degrees F to 300 degrees F
• 70 durometer hardness for firm, reliable sealing under pressure
• Round cross section for standard O-ring groove fitment
• Black color; sold in a package of 9 units

Compatibility

Designed for use in Dash 426 O-ring groove configurations across plumbing, HVAC, hydraulic, and industrial fluid systems where EPDM compound is appropriate for the media and temperature conditions present.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. Always depressurize and drain the system before removing the old O-ring and seating the replacement. Inspect the groove for damage, debris, or corrosion before installation. Avoid pinching or twisting the O-ring during installation, and do not use petroleum-based lubricants with EPDM compound, as they can cause material degradation.