What is a piston actuator?
Piston actuators are used when the stroke of a diaphragm actuator would be too short or the thrust is too small. Compressed air is applied to a solid piston contained within a solid cylinder. Simple designs have the air fed into a central chamber and the air forces the piston upwards.
What does a valve actuator do?
Electric valve actuators control the opening and closing of valves. They can provide either linear or rotary motion and work with different types of valves, including ball and butterfly valves.
What causes an actuator to fail?
Normally, failure is caused by application errors, such as side loading, incorrect wiring, poor mounting fixity, excessive loading, and exceeding duty cycle.
Why do we need actuators?
An actuator is a part of a device or machine that helps it to achieve physical movements by converting energy, often electrical, air, or hydraulic, into mechanical force. Simply put, it is the component in any machine that enables movement.
What is Scotch Yoke actuator?
A scotch yoke actuator may be defined as a mechanical device that converts linear force into torque to motorise quarter-turn valves. A single-acting scotch yoke actuator is made of three main components: housing containing the yoke mechanism, pressure cylinder containing the piston and spring enclosure.
Can an actuator be repaired?
If it’s possible to lock out the actuator electrically so there is no current, it may be possible to perform the repairs on-site. On the other hand, for mechanical work like replacing the center column, you’ll likely need to remove the actuator from service before it can be repaired.
What are the examples of pneumatic actuators?
Some types of pneumatic actuators include:
- Tie-rod cylinders.
- Rotary actuators.
- Grippers.
- Rodless actuators with a magnetic linkage or rotary cylinders.
- Rodless actuators with mechanical linkage.
- Pneumatic artificial muscles.
- Vane Motors.
- Pneumatic motors.
Why choose asepco valves?
Their unique construction and radial diaphragm design makes them completely drainable and virtually eliminates the risk of contamination. We have developed ASEPCO valves to minimise risk.
Are asepco products BPE and CE-PED compliant?
All ASEPCO products meet BPE, CE-PED, and ASME standards. Tank-bottom valves are the benchmark of the industry allowing for full-flow and steaming behind the seat.
What types of tank valve actuators are available?
Our tank valve actuators are available in 2 series; the AJS actuator series for heavy-duty applications or the AKS actuator series for lighter weight needs. Both series offer manual and pneumatic options, are laser-etched for traceability, and carry a market-leading three year warranty.