Diaphragm Operated Control Valve
A diaphragm-operated control valve is a type of control valve used in fluid control systems, particularly for regulating the flow of liquids and gases. It uses a diaphragm mechanism to control the movement of the valve plug and adjust the flow through the valve.We CAPRO VALVES make available superb quality ,durable and with minimum maintenance DIAPHRAGM OPERATED CONTROL VALVE.
Key Components :
Diaphragm : A flexible, elastic membrane made of materials like rubber or metal, which reacts to changes in pressure and serves as the actuator.
Valve Body : The main structure that houses the valve plug and flow passages.
Valve Plug : A component that moves to open or close the valve, controlling the flow rate.
Stem : The part that connects the diaphragm to the valve plug, transmitting the motion to regulate the flow.
Spring : Provides the necessary force to return the diaphragm to its default position when no pressure is applied.
Actuator : In a diaphragm-operated valve, the diaphragm itself often acts as the actuator, converting the pressure signal into mechanical movement.
Working Principle :
The diaphragm is positioned above the valve plug, and it is connected to the actuator mechanism.
A controlled air or fluid pressure is applied to the diaphragm, causing it to flex or move in response to changes in pressure.
As the diaphragm moves, it drives the valve stem and plug, adjusting the opening of the valve.
The valve may open or close depending on the pressure signal, controlling the flow rate of the fluid in the system.
The diaphragm also works in conjunction with a spring to return to a closed position when the pressure signal is reduced.
We offer following Advantages :
Simplicity : Diaphragm valves are simple in design and easy to operate.
Leak-tight Sealing : They provide good sealing performance because the diaphragm forms a tight seal when the valve is closed.
Adjustability : The flow can be finely adjusted by varying the pressure applied to the diaphragm.
Durability : These valves are robust and well-suited for a wide range of pressures and temperatures.
Applications :
Process Control Systems : In industries like oil and gas, water treatment, and chemical processing, our diaphragm-operated control valves are often used for precise control of fluid flow.
HVAC Systems : They can regulate air and water flow in heating, ventilation, and air conditioning systems.
Pneumatic Control : Our Diaphragm-operated valves are commonly used in pneumatic control systems, where the diaphragm responds to the changes in air pressure.
Specifications :
TYPE : Globe type 2 way, 3 way single seated, double seated
SIZE : 1” to 12”
BODY MATERIALS : C.I./ C.S./S.S.304/S.S.316/Alloy Steel
DESIGN PRESSURE : Upto 900 PSIG
DESIGN TEMPERATURE : Upto -100 0 C+ 850 0C
END CONNECTIONS : Screwed socket weld upto 2” above 2”flanged confirming to 150/300/600 #
BONNET : ( Plain bolted) : -0 C to +200 0 CRadiation -200 0 C to 850 0 CExtenuation finned Column low temperature upto - 1000 C
BELLOWS SEALS : Stainless Steel and PTFE
PACKING : Teflon, Teflon Asbestos, Graphite Asbestos
TRIM DESIGN : Full capacity, 40 % restricted capacity
CHARACTERISTIC : Quick opening, Equal percentage and liner
ACTUATOR TYPE : Spring diaphragm cylinder,/Electric
LEAKAGE : 0.05 % of full capacity
ADVANTAGE : Largest various types of services application, Noise and cavitation control capacity
