Features: single face, arbitrary rotation direction, conforms to the EN12756 standard (DIN24960), push the ring by driving lug stuck, prevent off spring, static ring limit, spring travel restrictions, to avoid excessive wear of carbon ring.
Applications: widely used in sewage treatment systems and chemical pumps.
Operation parameters: pressure: M7N, M74 = 1.6MPa unbalanced type H7N, H75, H76 or 6Mpa type balance
Temperature: -40 to 220 DEG C speed: less than 20 m/