PQ2

The pneumatic proportional valve produces outlet pressure in
proportion to an electrical command input signal. It comprises
a complete closed loop servo system consisting of valves,
manifold, housing and electronic controls.

Double loop:
The servo valve expands in single loop operation by combining
an additional feedback from an external sensing device with the
internal transducer. The external sensor provides information
on the control status.

The PQ2 then compares the command signal with the second loop
feedback signal. Should there be a difference in the signal
comparisons, the servo valve will make adjustments to the
internal loop to bring the system into balance. This provides
accurate final outlet. The acceptance of electrical feedback from
an external sensor enables precise control of conditions such as
pressure, force, torque, position or flow.

External pressure transducer:
Any pressure transducer for 0-10 V and 4-20 mA output signal and
suitable for 15-24V DC supply voltage can be applied.
An appropriate coupling socket plus cable is required.

Supply voltage: 15...24 V DC, residual ripple < 10%, with reverse voltage protection
Command signal: 0-10V, 4-20mA as an option