Structural features: a single end, arbitrary rotation direction, in line with the EN12756 ( DIN24960 ) standard, a push ring by driving lug to keep the spring from falling, jammed, static ring can be limiting, spring travel restrictions, to avoid excessive wear of carbon ring.
Applications: widely used in sewage treatment systems and chemical pump.
Operation parameters: pressure: M7N, M74 unbalanced type<1.6MPa H7N, H75, H76 and 6MPa balance type
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