Value Collection ZMSCE70246 Epdm O-ring Dash 246 10 Pack

Product Description

The VALUE COLLECTION ZMSCE70246 is a Dash 246 EPDM O-ring designed for sealing applications in systems that handle hot water, steam, and phosphate ester hydraulic fluids. It features a round cross section with a 4.5-inch inside diameter, 4.75-inch outside diameter, and a 0.125-inch thickness. Rated at 70 Shore A hardness, this O-ring provides a firm, reliable seal under pressure. EPDM construction delivers excellent resistance to heat and moisture, making it a practical choice for plumbing, HVAC hydronic systems, and industrial fluid lines. Each package contains 10 O-rings.

This O-ring is suited for residential and commercial applications involving hot water service, steam lines, and phosphate ester type hydraulic fluids such as Skydrol, which is commonly used in commercial aircraft hydraulic systems. It performs across a wide temperature range, from -65 degrees F to 300 degrees F, covering the demands of most hydronic heating, steam distribution, and fluid power installations. Plumbers, HVAC technicians, and industrial maintenance professionals regularly use this profile for pump flanges, valve seats, and pipe couplings.

Key Features

• EPDM material with excellent resistance to hot water, steam, and phosphate ester hydraulic fluids
• Dash 246 standard profile with round cross section for consistent groove fitment
• 70 Shore A hardness rating for a firm, reliable seal under load
• Wide operating temperature range: -65 degrees F to 300 degrees F
• Packaged 10 pieces per unit for job-site convenience
• Black color for easy visual identification in standard O-ring groove sizes

Compatibility

Compatible with systems handling hot water, steam, and phosphate ester type hydraulic fluids. Designed as a standard Dash 246 replacement O-ring for applications requiring a 4.5-inch ID round cross section seal in EPDM material.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or industrial mechanics. Shut down and depressurize the system fully before removing the old O-ring or seating the replacement. Inspect the groove for scoring, corrosion, or debris before installing the new O-ring. Do not stretch or twist the O-ring during installation, as deformation can compromise the seal.