Value Collection ZMSCE70NSF223 O-ring Dash 223 Epdm

Product Description

The VALUE COLLECTION ZMSCE70NSF223 is a Dash 223 EPDM O-ring designed for static and dynamic sealing applications in plumbing, HVAC, and hydraulic systems. It features a round cross-section with an inside diameter of 1.609 inches, an outside diameter of 1.875 inches, and a thickness of 0.125 inches (3.53 mm). Molded from EPDM (ethylene propylene diene monomer) compound at 70 durometer hardness, this O-ring delivers reliable sealing performance across a wide service temperature range of -65 degrees F to 300 degrees F. Licensed plumbers, HVAC technicians, and hydraulic system technicians install this type of seal as part of routine maintenance and repair procedures.

This O-ring is suited for residential and commercial applications involving hot water service, steam systems, and phosphate ester-type hydraulic fluids. It also offers excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems, making it appropriate for aviation maintenance environments. The EPDM compound is a common choice in plumbing and HVAC service where exposure to water, steam, or specific hydraulic media is a primary concern. This SKU is packaged in a quantity of 10 rings, with a minimum order quantity of 1 package.

Key Features

• EPDM compound construction rated to 70 durometer for firm, consistent sealing force
• Wide service temperature range: -65 degrees F to 300 degrees F
• Excellent resistance to Skydrol hydraulic fluids used in commercial aircraft systems
• Compatible with hot water, steam, and phosphate ester hydraulic fluids
• Round cross-section profile for standard O-ring groove fitment
• NSF 61 certified — suitable for potable water system components

Compatibility

Compatible with systems and media including hot water, steam, and phosphate ester type hydraulic fluids. Also recommended for applications involving Skydrol fluids in commercial aircraft hydraulic systems. NSF 61 approval supports use in potable water contact applications.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system mechanics depending on the application. Always depressurize the system and shut off the fluid supply before replacing any O-ring seal. Inspect the mating groove for nicks, scoring, or debris before installation, and lubricate the O-ring with a compatible lubricant to prevent twisting or tearing during assembly. Do not stretch the ring beyond its rated groove dimensions during installation.