For Wedge Gate Valves - Pipeline through Conduit Valves - Globe Valves
Flow-Quip Linear actuators are designed to provide direct yoke mounted, powerful fail-safe automation for a wide size range of gate valves. Their wide range of fail-safe actuators eliminate the need for stored air, high pressure natural gas or nitrogen power sources, therefore field maintenance can be substantially reduced. They are always ready for emergency service and they can be regularly operated for normal automation duty. All Flow-Quip Linear units utilize a powerful, compact electrohydraulic Power Module that pressurizes the hydraulic cylinders and causes actuator stroking. The Power Module is either mounted seperate from the valve or self contained on the valve. Both configurations are shown here. A wide range of rugged high duty motors and electrical ratings are available to meet the requirements of each application. Thrust is produced by heavy duty linear cylinder with a direct drive coupling and adjustable stroke mechanism. Direct mounted hermetically sealed limit switches and a highly visible position indicator make these actuators ideal for shop or field mounting.
SR Series actuators incorporates an electric motor hydraulic drive
to stroke the valve in one direction, and a powerful self contained
spring to stroke the actuator in the opposite direction. The security
of spring return operation gives SR Series actuators high reliability
and mechanical simplicity.
Type SE linear actuators utilize an electric motor driven hydraulic
Power Module to generate and store hydraulic energy. When sufficient
pressure is obtained in storage the system stops the motor and it
maintains a stand by mode until more hydraulic energy is needed.
When fail-safe operation is required hydraulic energy is drawn from
the self-contained accumulator storage and operates the actuator.
After operation the Power Module again regenerates stored energy
for future stroking needs. Multiple operations of the actuator are
possible utilizing stored energy. Even without electrical power 2, 3,
4 or more fail-safe actuator operations can be achieved with SE
linear actuators.
The M-DRIVE linear series is powered by a bi-directional motor
driven hydraulic pump to stroke the actuator in both directions.
Using DC motors and simplified hydraulic circuitry the M-DRIVE
series is a cost effective solution for systems with stand by battery
systems for fail-safe operation.
