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AXIAL CHECK VALVE – CLASSICAL TYPE

AXIAL CHECK VALVE – CLASSICAL SOLUTION WITH SPRING

CV.SC – Solution with optimal spring force is reliable and the most common solution for pump and system protection.

The speed of safety reaction in closing direction „the response characteristic” depends on the spring force and intensity of the back pressure. It is a simple but rigid solution. It means if we want to change this characteristic, for example on higher flow velocity or intensive water hammer, we have to change the spring force with a stronger one. But stronger spring force means greater flow losses, which means financial losses, that can be much higher in a shorter time-span than the value of the pump and related equipment. This Solution is commonly used in an accurately defined flow situation, mainly for water (potable, process, raw…), compressed air, oil and gas… Its fully open with standard spring at steady flow velocity > 2 m/s and fully closed at reverse flow velocity > 0,2 m/s

NOTE: To achieve full openness the spring force must be aligned with customer request acc. to flow velocity

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