HEYPAC’s are double acting single piston pumps and, as a result, produce small pressure pulsations. These can be significantly reduced by the addition of the appropriate smoothing kit to the outlet port of the pump. For maximum pulsation dampening the accumulator should be installed as close to the outlet port as possible. When used on pumps with valve manifolds fitted the smoothing kit should be fitted to the alternative pressure port on the pump flange.
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