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Harder O-rings

Performance expectations, coupled with technical advancements, have led Daman Products Co., Mishawaka, Ind., to switch O-ring hardness from 75 to 90 durometer for all face seal O-rings supplied with its standard and custom parts. Advances in machining of sealing surfaces have allowed the industry to implement standards that have fewer and smaller micro-fine grooves. O-rings with a hardness of 90 durometer allow systems operate at higher flow rates and decrease the likelihood of seal failure from shock (water hammer) and pressure spikes.

For additional information, call Daman Products Co. at (800) 959-7841, or visit