Valve actuators are mechanical devices that use a power source to operate a valve. This power source can be electric, pneumatic (compressed air), or hydraulic (the flow of oil). There are two main types of actuators, one for each of the two main types of valves that require them. They are rotary and linear. At Total Valve Systems, we offer a full selection of industry leading actuators in each of the types of power sources. Total Valves engineering team can work with you to determine which style and options will best serve the needs for your application.
Output torque up to 2078 lbf-in (235 Nm)
Speeds up to 5000 rpm per gear ratio
Continuous force up to 3,225 lbf (14 kN)
Speeds up to 33 in/s (800 mm/s)
Continuous force up to 872 lbf (3879 N)
Speeds up to 33.3 in/s (846 mm/s)
Complete integrated valve operating system with actuator and controls. Robust and compact design that are widely used on valves for marine, oil and gas, chemical, power, and water and wastewater applications.
B series - Ductile iron w/ stainless steel cylinders, C series - Ductile iron w/ carbon steel cylinders Spring return and double acting actuators Quarter-turn output torques to 158200 Nm
Flowserve Limitorque is the world’s oldest supplier of intrusive, electromechanical multi-turn actuators and continues to produce the world class L120 and SMB series of electric actuators.
Flowserve Limitorque is a world class supplier of the non-intrusive, electronic multi-turn MX series of actuators.
Actuators requiring 90° of rotation to operate are necessary for quarter-turn valves such as ball, butterfly, plug and dampers, and rotary control valves.
For 60 years Rotork has used innovation for designing reliable, flexible and robust valve actuators and control systems.
Technologically innovative while incorporating proven engineering, Rotork watertight CK range actuators are suitable for all valves in non-hazardous locations.
The CVA range of linear and quarter-turn actuators provide an electrically powered process control operator suitable for most control valve types and sizes.
CMA range modulating actuators deliver a series of sizes suitable for linear, part-turn and multi-turn control valve and pump applications requiring precise position control and continuous modulation.
ROM actuators provide quiet and reliable operation for all kinds of small ball valves and butterfly valves, as well as dampers and ventilation louvres.
The ROM range of actuators can be enhanced with the addition of a self-contained control package to create a ROMpak actuator.
400 Series electric actuators use the reliable Planetary Torque Control System (PTCS), providing a highly efficient actuator.
The PAX1 is a flexible low voltage DC powered linear actuator featuring a 25 mm maximum thrust rod stroke moving at speeds up to 60 mm/min and a maximum thrust of 2,890 N (650 lbf) all in a flameproof enclosure.
Compact, robust and lightweight electric part-turn valve actuator, designed for use in Ex areas for all gases, mists, vapours and dust.
The SM-1700/5000 Series of rotary actuators are internally geared to produce up to 12,500 ft.lbs. (16,950 Nm) of torque, and offer continuous modulation.
The DFC Series linear actuator's large diaphragm area allows for low supply pressure operation, and the spring provides fail safe positions of a control valve on loss of pneumatic supply.
The DFO Series linear actuator's large diaphragm area allows for low supply pressure operation, and the spring provides fail safe positions of a control valve on loss of pneumatic supply.
The Model DFR is a versatile rotary diaphragm actuator typically used on ball or butterfly valves like the 570 or 660 series control valves.
VTN series pneumatic actuator combines compact design, convenient integration, and advanced customization in high precision; and wide selection of output torques with mounting accessories.
VT-3P series three position pneumatic actuator offers the extended range of rotations with adjustable mid position of 20°/30°/50°/70°. provided by 90°stroke.
VTX Series Stainless steel pneumatic actuator offers configurations of spring return and double acting models with heavy duty pinion, one-piece stainless alloy shafts.
VTS series scotch yoke actuator is designed to meet challenging and hostile working conditions featuring simple integration and a wide torque range realized by interchangeable modules as well as wear resistance and long service life.
VTM series electric actuator features compact size, robust construction, light weight as well as large output torque (35NM-4000NM).
The VTMR series spring return electric actuator is designed for mechanical fail-safe positioning of valves or dampers upon loss of supply power.
VTML series linear electric actuator is standard with modulating valve control and other linear motion devices applying to HVAC and industrial automation, especially suitable for steam or high temperature working condition.
VTH series declutchable manual override features compact size and smooth operation generating a wide torque range from 100Nm to 4200Nm with labor-saving input torque from 20Nm to 50Nm.
VTL series limit switch characterizes stable and reliable operation of remote control in compact and robust design.