Cement
Engineered valve solutions tailored for critical Cement operating processes.
Diaphragm Actuator
Resistant
Sealing
Operation
Long Life
Alis Valves offers high-performance Diaphragm Actuators designed for accurate and reliable control of industrial valves. These actuators use air pressure acting on a flexible diaphragm to create linear motion, making them ideal for globe control valves and other modulating applications. Widely used in process industries, diaphragm actuators ensure precise flow control, quick response, and safe operation even in critical environments.
Product Specifications and Overview
ALIS Valves offers Diaphragm Actuators for industrial applications requiring reliable valve automation and precise process control. These actuators use a flexible diaphragm that responds to pneumatic pressure, converting air pressure into mechanical movement to operate compatible control valves. Depending on the design, a spring-return mechanism provides fail-open or fail-closed operation when the air supply is interrupted. Diaphragm actuators support smooth valve positioning and can be integrated with suitable control systems to regulate fluid flow and maintain required process conditions.
Diaphragm Actuators are suitable for applications in chemical processing plants, oil and gas facilities, power generation units, water treatment plants and other industrial process systems. They are commonly used with compatible control valves for throttling, flow regulation and automated operation. Important selection factors include required thrust, operating air pressure, actuator stroke, spring range, control signal, valve compatibility, operating temperature and environmental conditions. Selecting the appropriate actuator configuration helps support dependable valve operation, accurate control and reliable performance under the specified working conditions.
Operation
Pneumatic (Air Operated)
Motion
Linear
Action Type
Air to Open / Air to Close
Fail Safe
Spring Return (Fail Open / Fail Close)
Air Supply
3 to 6 Bar
Body Material
Cast Aluminum / Steel
Diaphragm Material
Nitrile / EPDM
Mounting
Direct Mount on Control Valve
Control Signal
With Positioner (4–20 mA)
Temperature Range
Up to 120°C
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Frequently Ask Questions
A diaphragm actuator is a pneumatic device that uses air pressure to move a flexible diaphragm and operate a valve. It converts air energy into linear motion for precise control.
Alis Valves is a trusted manufacturer offering high-quality and reliable diaphragm actuators. They provide durable solutions with good support and customization.
It works by applying air pressure on a diaphragm which moves against a spring. This movement controls the valve opening or closing.
Yes, they can be integrated with positioners and control systems. This allows accurate and automatic valve operation.
They are used for controlling flow, pressure, and temperature in control valves. Common in industries like chemical, power, water, and oil & gas.
Choose based on valve size, air pressure, fail-safe requirement, and application conditions. Also consider stroke length, thrust, and accessories like positioners.
Diaphragm actuators offer precise control and are used in control valves. Piston actuators provide higher force and are used in heavy-duty applications.
Fail-safe means the actuator moves to a safe position (open or close) when air supply fails. This is achieved using a spring return mechanism.
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