CPVC plastic pneumatic diaphragm valve
Pneumatic diaphragm valves, such as the CPVC plastic pneumatic diaphragm valve, are widely used in various industries due to their efficient flow control, ease of maintenance, and reliable performance under diverse conditions. They are designed to regulate and shut off fluid flow by employing a flexible diaphragm and pneumatic pressure.
Structure and Mechanism of Operation
At the core of the pneumatic diaphragm valve lies a flexible diaphragm, usually made from materials like EPDM or EPDM+PTFE. This diaphragm is connected to a pneumatic actuator, which supplies pressured air to control valve movement.
There are two main types of pneumatic actuators:
- Double Acting Actuators: These actuators use compressed air to control both the opening and closing of the valve.
- Single Acting Actuators: These actuators use compressed air to control either normally closed or normally open valves.
Notably, the CPVC plastic pneumatic diaphragm valve can be outfitted with flanged end connections, making it suitable for easy integration into many piping systems.
System Integration and Applications
Pneumatic diaphragm valves find applications in a wide array of industries, including but not limited to the following:
- Chemical processing
- Water treatment plants
- Food and beverage
- Pharmaceutical manufacturing
These valves can be customized and adapted to suit specific needs in controlling processes that involve aggressive chemicals, high temperatures, and even sterile environments.
The compact design and flexibility of the CPVC plastic pneumatic diaphragm valve enable easy integration with various pneumatic accessories such as solenoid valves, limit switch boxes, filters, E/P positioners, and handwheels. Adding these accessories can further enhance the valve’s functionality, allowing for precise control and assessment in diverse applications.
Selecting the Right Valve
When choosing a pneumatic diaphragm valve for your specific needs, consider the following factors:
- Application requirements (operating pressure, temperature, fluid type)
- Valve size range (e.g., 1/2″ – 10″ or 15mm – 250mm)
- Preferred diaphragm material (EPDM, EPDM+PTFE, or other options)
- Actuator type (double acting or single acting)
- Pneumatic accessory compatibility
Size: 1/2″ – 10″ (15mm – 250mm)
Diaphragm Material : EPDM,EPDM+PTFE
Pressure supply: 5.5bar
Pneumatic Actuator: Double acting,Single acting
ASME B16.34 class 150、ASME B16.34 class 300
Control: Double acting,
Single acting normally closed
Single acting normally open
Pneumatic accessories: Solenoid valve, limit switch box , filter, E/P positioner, hand wheel