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APPLICATION BRAKE SYSTEMS

Safety, stability and reliability are the most important requirements for a brake system.
The areas of application can be very different. Whether for low-floor vehicles such as
trams or regional trains, for all types of cable winches, for large dump trucks or cable cars,
being able to precisely regulate the smallest pressures is an indispensable prerequisite for
any brake system.

FUNCTION
By means of the proportional pressure reducing valve, the
cylinder pressure is adjusted to the required braking force. The
output pressure of the control valves is independent from the
input pressure. Such systems are often used for the accumulator
unloading operations in order to ensure as long standstill intervals
of the motor pump units as possible. In the case of proportional
control valves, only low leakages must occur. Passive brake
systems require an inverse valve function.

COMPONENTS
Direct operated pressure valves of various sizes are used in
brake systems. The pressure reducing valves of the valve
series with M16 screw-in thread (MDPPM16, MGPPM16) are
constructed very compact. The larger valves (MDPPPU10,
MQPPM22), which can process oil flows of up to 20 l/min or
40 l/min, are suitable for larger brake cylinders. Brake systems
can also be constructed with pressure relief valves (BDPPM,
BSPPM) or throttle valves (DNPPM, DOPPM).

SPECIALITIES
• Smallest minimum pressures adjustable
• Fast step response times for immediate braking
• Very low leakage values, < 25 ccm/min
• Low temperature executions
• Different corrosion protection classes

WANDFLUH MOBILE | APPLICATION | BRAKE SYSTEMS | PAGE 3