Pneumatic actuators are fitted with mechanical position indicators
which indicate fully open and fully closed positions. This MPI system consists of two single pole, double throw
micro switches fitted with integral hinged lever and roller actuators.
Each micro switch is wired in a normally open position via a seven pin circular threaded connector. Mating female
cable connectors are included. Normally closed switch wiring is available on request. Precise positioning of micro switches
is made possible by a patented vernier adjustment mechanism only available on MDC gate
Pneumatic actuators are equipped with dual impulse Herion 24 VDC air control solenoid valves. All solenoid
valves are fitted with DIN type connectors that conform to international
standards. DIN connectors provide simplicity, convenience and fast, easy electrical installation. Solenoid valves are
designed for use with compressed air from 0 to 125psig. Air should be clean and
uncontaminated. When in doubt, install a filter with filtering capacity of 40 microns. Periodically
remove and clean or replace filter element.