Value Collection ZMSCE70237 Epdm O-ring Dash 237 Pack 10

Product Description

The VALUE COLLECTION ZMSCE70237 is a Dash 237 EPDM O-ring with a round cross section, sized at 3.375 inches inside diameter, 3.625 inches outside diameter, and 0.125 inches thick. Made from ethylene propylene diene monomer (EPDM) rubber with a 70 durometer hardness rating, it is engineered to maintain a reliable seal across a wide service temperature range of -65 degrees F to 300 degrees F. Sold in a pack of 10, this O-ring is installed by plumbers, HVAC technicians, and hydraulic system technicians in applications requiring resistance to hot water, steam, and phosphate ester hydraulic fluids.

This O-ring is suited for residential and commercial plumbing, HVAC hydronic systems, and industrial hydraulic circuits that use phosphate ester fluids such as Skydrol. Its EPDM compound delivers strong resistance to steam and hot-water service, making it a practical choice for high-temperature sealing points in boiler connections, pump flanges, and fluid-transfer assemblies. The round cross section provides consistent compression and sealing force across standard groove profiles.

Key Features

• EPDM compound rated for -65 degrees F to 300 degrees F service temperature range
• Dash 237 standard sizing: 3.375 inches ID, 3.625 inches OD, 0.125 inches thick
• 70 durometer hardness for firm, durable sealing under compression
• Excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems
• Compatible with hot water, steam, and phosphate ester type hydraulic fluids
• Round cross section for uniform groove fit and consistent seal performance
• Pack of 10 units per order to support service inventory

Compatibility

Compatible with hot water, steam, and phosphate ester hydraulic fluid systems. Designed as a standard Dash 237 O-ring replacement for plumbing, HVAC hydronic, and hydraulic applications where EPDM compound is specified.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Shut off and depressurize the system completely before removing the old O-ring and seating the replacement. Inspect the groove for nicks, corrosion, or debris before installation, and apply a compatible lubricant to ease seating without rolling or twisting the O-ring. Follow applicable IPC or system manufacturer guidelines for pressure ratings and torque specifications on the mating hardware.