Crane Process Flow Technologies
32
PneumaticValveActuation
EV andESModular Actuators
EV spring close
(DN15-150)
ESModular
(DN15-150)
The ESModular Actuator offers efficient mechanical/pneumatic control
of the diaphragm, allowing remote and automated operation.
Saunders ESModular Actuator has been designed to offer full flexibility to
the user. Cost of ownership have been reduced through standardization
of the Actuator Heads, and a unique interchangeable bonnet assembly.
Several different actuator models may be provided for each valve size to
suit different line and operating pressures. The range allows valve closure
against the maximum valve working pressure and can be successfully
used for modulating control duties in addition tomore normal isolation
functions.
Failsafe closing actuators are fully adjustable, i.e. spring compression can
be externally adjusted to provide optimum diaphragm forces and hence
provide extremely long diaphragm life in service.
Many accessory options are available which include solenoid valves,
remote indication devices (switches or sensors) to suit
environmental conditions such as hazardous services.
Limit stops and positioners andmany other devices may
be offered to allow usage within particular control
systems. ESModular Actuators are provided with a
tough polyester coating which gives maximum
durability, even in exposed locations.
