Diaphragm Type Solenoid Valve For Low pressure Aira GSD 1/2″ to 2″

Solenoid Valve – How They Work

A solenoid valve is an electrically controlled valve. The valve features a solenoid, which is an electric coil with a movable ferromagnetic core (plunger) in its center. In the rest position, the plunger closes off a small orifice. An electric current through the coil creates a magnetic field. The magnetic field exerts an upwards force on the plunger, opening the orifice. This is the basic principle used to open and close solenoid valves.

A variation, the diaphragm solenoid valve, uses the same electrical principle but employs a flexible diaphragm instead of just a plunger to manage larger flow rates and media with higher pressures.

How Does a Solenoid Valve Work?

A solenoid valve consists of two main components: a solenoid and a valve body. A solenoid has an electromagnetically inductive coil around an iron core at the center called the plunger. At rest, it can be normally open (NO) or normally closed (NC). In the de-energized state, a normally open valve is open, and a normally closed valve is closed.

When current flows through the solenoid, the coil is energized and creates a magnetic field. This creates a magnetic attraction with the plunger (or the mechanism controlling the diaphragm in a diaphragm solenoid valve), moving it and overcoming the spring force.

• If the valve is normally closed (NC), the plunger/diaphragm is lifted so that the seal opens the orifice and allows the flow of the media through the valve.

• If the valve is normally open (NO), the plunger/diaphragm moves downward so that the seal blocks the orifice and stops the flow of the media through the valve.

The shading ring prevents vibration and humming, particularly in AC coils.

For more types of solenoid valves, click here.

Product Catalogue.

FAQs for Diaphragm Type Solenoid Valve (Low Pressure Aira GSD):

Q1: How does a diaphragm solenoid valve ensure smooth operation in low-pressure systems?
A diaphragm solenoid valve uses a flexible diaphragm that opens and closes with minimal pressure, ensuring stable and efficient operation even in low-pressure fluid applications.

Q2: Is a diaphragm solenoid valve suitable for water, air, and light fluid applications?
Yes, a diaphragm solenoid valve is designed for low-pressure water, air, gas, and light fluid systems, offering reliable shutoff performance with minimal leakage.

Q3: What maintenance is required for a diaphragm solenoid valve in continuous operation?
Maintenance of a diaphragm solenoid valve includes cleaning the diaphragm, checking the coil performance, and ensuring debris-free flow paths to maintain consistent valve response.

Q4: Can a diaphragm solenoid valve handle rapid on/off cycling?
Yes, a diaphragm solenoid valve is built for frequent on/off cycles, providing quick actuation and dependable performance in automation, pneumatic, and low-pressure control systems.