Thrust Actuators
Thrust actuators for on-off duty DL
DREHMO thrust actuators can be fitted to valves which require a linear movement. The thrust actuators transform the torque of a multi-turn actuator into an axial thrust by means of an integrated thrust unit.
Sketch: Thrust actuator
The required (switch-off) actuating force (thrust and traction) can be adjusted continuously and reproducable. Linear actuators are mainly used to operate globe valves. Thrust units, fitted to the output-drive of an multi turn actuator consist mainly of a threaded spindle, a metric screw bolt to join the valve shaft and a housing to protect the spindle against environmental influences.
The described version is used for "direct mounting" of the actuator to the valve. However, DREHMO thrust actuators, version "fork joint" (indirect mounting) can also operate butterfly valves or dampers, when direct mounting of a part turn actuator is not possible or efficient. Cardanic mounting of the thrust unit at the fork joint is available on request.
Modulating thrust actuators type DLR
The thrust units of the DREHMO thrust actuators for modulating duty D...R + DSE also comply to the high demands of the modulating duty. Also for these thrust units high-quality materials and accurate tolerances secure perfect function for many years of operation. The thrust units are operated by a DREHMO modulating actuators.
Subsequent automation (retrofitting) of hand operated valves. DREHMO-Matic C with special flange mounted on a sluice-gate in flood-risky areas.
