Value Collection ZMSCE70031 Epdm O-ring Dash 031 Pack of 100

Product Description

The VALUE COLLECTION ZMSCE70031 is a Dash 031 EPDM O-ring designed for static and dynamic sealing applications in plumbing, HVAC, and industrial fluid systems. Manufactured from Ethylene Propylene Diene Monomer (EPDM) compound, it carries a 70 Shore A hardness rating and a round cross-section profile. The ring measures 1.75 inches inside diameter and 1.875 inches outside diameter, with a wall thickness of 0.0625 inches. It is rated for service from -65 degrees F to 300 degrees F, making it suitable for high-temperature water and steam environments. Licensed plumbers, HVAC technicians, and industrial maintenance professionals commonly specify this material for hot-water and steam sealing duties.

This O-ring is appropriate for residential and commercial plumbing systems, HVAC hydronic circuits, and hydraulic systems using phosphate ester fluids. It is specifically noted for excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems. Compatible media include hot water, steam, and phosphate ester type hydraulic fluids. The rings are sold in a package quantity of 100, making this listing well suited for service shops, maintenance contractors, and stocking distributors that require bulk sealing inventory at a standard Dash 031 dimension.

Key Features

• EPDM compound with 70 Shore A hardness for firm, reliable sealing under pressure
• Wide temperature range: -65 degrees F to 300 degrees F, compatible with steam service
• Excellent resistance to Skydrol hydraulic fluids used in commercial aviation systems
• Round cross-section in standard Dash 031 sizing for straightforward groove fitment
• Black color; compatible with hot water, steam, and phosphate ester hydraulic fluids
• Sold in a pack of 100 units, suitable for bulk stocking and fleet maintenance

Compatibility

Compatible sealing media include hot water, steam, and phosphate ester type hydraulic fluids. Recommended for use in systems handling Skydrol fluids found in commercial aircraft hydraulic circuits. Designed as a standard Dash 031 replacement O-ring for any groove machined to that AS568 dash number specification.

Installation Notes

O-ring installation should be performed by a qualified plumber, HVAC technician, or hydraulic systems technician following applicable codes such as the IPC or system manufacturer guidelines. Always depressurize and drain the system, and confirm the groove is clean and free of damage before seating the ring. Lubricate the O-ring with a fluid compatible with EPDM compound prior to assembly; do not use petroleum-based lubricants with EPDM seals. Inspect the seated ring for twisting or pinching before returning the system to service.