Diaphragm Valves vs Electrically Actuated Control Valves

What are Diaphragm Valves?

Diaphragm valves are named after a flexible disc that is connected with a platform at the top of the valve body, which in turn, forms a seal. A diaphragm is an adaptable component that responds to pressure and engages a force to open, close and control a valve.

Diaphragm valves use a durable diaphragm that is connected to the compressor by a stud, which is proceeded by being shaped into the diaphragm. The diaphragm is shoved, making contact with the bottom of the valve body, to shut-off as an alternative, instead of tweaking the liner closed to shut it off. Diaphragm valves are manually operated and are ideal to control the flow control by offering a variable and precise opening for handling pressure drop through the valve. A handwheel is turned until the desired amount of medium flow is transmitted throughout the system. The handwheel is in motion until the compressor pushes the diaphragm to counter the bottom of the valve body to either halt the flow or make way in the bottom until there is a passage for flow.

The diaphragm is secured to a compressor by a stud constructed inside the apparatus. The valve stem is moved up to start or enhance the flow in the compressor. To stop or reduce the flow, the compressor is modulated along with the diaphragm being thrust against the foot of the valves. Diaphragm valves are reliable for managing the flow of liquids containing solid matter and have the ability to be fixed in any position.

What are Electrically Actuated Control Valves?

There are two types of electric valve actuators; rotary and linear. Each of them uses special valves to function.

The motor varies in voltage and puts a lot of emphasis on torque generation. To avoid heat damage from excessive functions or override current draw, electric actuator motors come along with a sensor which marks an increase in temperature in the motor mechanisms. The sensor gives out a signal when the circuit needs to be opened when overheated. The circuit can be closed again when the motor reaches a moderate temperature.

Electric actuators are dependent on a gear train attached directly to the motor to boost the motor speed which navigates the speed of the device. You can change the output speed by installing a cycle length control variable.

Why are Electrically Actuated Control Valves better?

– You do not need an air supply. Air supply may not be available in many places and it is also hard to keep track on.

– Colder climates can cause compressed air systems to freeze or clog but the electrically actuated controlled valves have the ability to withstand these temperatures.

– They are cost effective.