Page 20 - Linde - HMF/A/V/R-02 Hydraulic motors for closed and open loop operation

Functions. Counterbalance valve

The counterbalance (brake) valve prevents the motor over speeding during an over-run situation. To achieve this, the motor
return flow is automatically and continuously metered such that it always matches the input flow. Different braking responses are
possible. The integrated make-up function simultaneously prevents cavitation. A purge and case flushing function is
also integrated. Counterbalance (brake) valves are typically used for drive systems in open loop circuits. The function of the high
pressure relief valves can be integrated in the counterbalance valves. Further types of counterbalance valves are shown in section
“Dimensions. HMR-02”.
With counterbalance (brake) valve, here: axial attachment

Dimensions

Brake valve 1” 1 ¼”
Length L 168.5 168.5
Width B 165.7 195
Height 136.6 143

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