Description: O-rings are static and dynamic seal consumables for pumps, widely used at pump covers, impeller nuts, mechanical seals, flanges, and similar locations to prevent medium leakage or air ingress.
Fill assembly gaps to form a seal, block leakage of the conveyed medium, and prevent air intake under negative pressure.
Accommodate equipment thermal expansion and contraction and absorb minor assembly deviation.
Static seals are used at flanges and pump covers; a few serve as auxiliary seals for low-speed dynamic duties.
Common ring-shaped rubber seals include nitrile rubber (NBR), fluoroelastomer (FKM), and polytetrafluoroethylene (PTFE); selection is based on medium acidity/alkalinity, temperature, and solvent.
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