Check Valves by Eddington Industries contain a seal, which permits flow in one direction but seals against a seat when inlet flow ceases to prevent backflow which could cause damage to process equipment.
Features:
Check Valves allow full pressure rating in the Check direction.
CPVC, and Kynar check valves contain a free floating ball that never seats in the same position twice.
A Variety of materials and sizes fill different temperature and pressure rating requirements.