The VG3 set from Olaer is used for charging bladder- and piston accumulators with nitrogen and for testing or changing the existing pressure
It is screwed on the gas valve of the accumulator and connected with the attached hose to a commercial nitrogen vessel. If the maximum allowable operating pressure of the accumulator is lower than the maximum allowable operating pressure of the nitrogen vessel, a pressure-reducing valve with a gas relief valve must be inserted.
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