Praher Plastics: Check valve K4

Get the most out of your system by adjusting the springs of your non-return valve to the corresponding operating pressure! If the springs are used correctly, an optimal flow of the medium is achieved. Our flaps are supplied with an indicator pin and two springs. The K4 non-return valve is factory-set for an operating pressure of 7.1 bar to 10 bar. However, if there is a lower operating pressure of 0 to 7 bar in the pipeline, the springs exert an increased force on the flap. This counteracts the flow of the medium and makes it more difficult.

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