Value Collection BDNA-9370 O-ring 30in Id 36in Od Nbr

Product Description

The VALUE COLLECTION BDNA-9370 is a large-diameter nitrile butadiene rubber (NBR) O-ring used to create leak-tight static or dynamic seals in fluid and pneumatic systems. With a 30-inch inside diameter, 36-inch outside diameter, and 3-inch cross-section thickness, this ring is built for heavy-duty industrial sealing applications. The round cross-section profile seats evenly in standard O-ring grooves, providing consistent compression and reliable sealing performance. NBR material offers solid resistance to petroleum-based oils, fuels, and hydraulic fluids, making it a practical choice for plumbing, HVAC, and industrial fluid-handling assemblies.

This O-ring is suited for large-bore sealing applications found in industrial equipment, water treatment systems, hydraulic cylinders, pump housings, and heavy mechanical assemblies. The NBR compound performs across a broad temperature range and resists swelling in contact with mineral oils and many common process fluids. Plumbers, pipefitters, and industrial maintenance technicians typically install this size in flanged connections, large valve bodies, and tank cover seals where a custom or hard-to-source large-format ring is required.

Key Features

• Large-format NBR construction rated for petroleum oils, hydraulic fluids, and water service
• 30-inch inside diameter and 36-inch outside diameter for heavy-bore sealing applications
• 3-inch cross-section thickness provides substantial compression range and groove fill
• Round cross-section seats uniformly in standard O-ring groove profiles
• Metric system of measurement with inch equivalents for cross-trade compatibility

Compatibility

Designed as a replacement or maintenance O-ring for large-bore industrial sealing applications requiring a 30-inch ID, 36-inch OD, 3-inch thick NBR round cross-section ring.

Installation Notes

Installation should be performed by a qualified plumber, pipefitter, or industrial mechanic. Depressurize and drain the system fully before removing the old ring or seating the new one. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant to ease installation and reduce the risk of tearing during assembly. Inspect the groove for debris, scoring, or corrosion before seating the new ring.