Product Details of Solenoid Valve Model : WK15L(1/2")-N-5-DC24V / Diaphragm Type 2/2 way NC,NBR Seal,For Vaccum, Water,
The Diaphragm Type Solenoid Valve (Solenoid Valve Diaphragm Type) is a valve that controls the flow of liquids or gases using a diaphragm and solenoid to open and close the valve. It is commonly used in automatic systems such as plumbing systems, irrigation systems, compressed air systems, and various industries.
How a Diaphragm Solenoid Valve Works
Main Components
Solenoid Coil (Electromagnetic Wire Winding): Creates a magnetic field when electric current flows through it.
Plunger (Movable Iron Rod): Moves up/down with the magnetic field.
Diaphragm (Flexible Rubber/Silicone Sheet): Opens and closes fluid channels.
Pilot Port (Pressure Control Port): A small port that helps control pressure on both sides of the diaphragm.
Operating Mode
Normal Closed (NC) – Normally Closed
No electricity → Plunger closes the pilot port → Pressure on both sides of the diaphragm is equal → Diaphragm closes the valve.
When powered → Plunger is pulled up → Opens the pilot port → Pressure above the diaphragm decreases → Fluid from below pushes the diaphragm up → Valve opens.
Normal Open (NO) – Normally Open
Similar principle but reversed pressure side → When no power valve is open, when powered valve closes.
Advantages of Diaphragm Valves
Fast opening and closing.
No leakage (because the diaphragm does not wear like other valves).
Easy maintenance.
Suitable for clean fluids such as water, air.
Usage Details
Drinking water system used to control water in filters and cold water machines.
Automatic irrigation systems open/close water according to schedule.
Food/Pharmaceutical industry used with clean fluids that need precise control.
Pneumatic system controls air supply in machinery.
Home appliances such as washing machines, coffee makers.
Technical Data Solenoid Valve Model : WK15L(1/2")-N-5-DC24V / Diaphragm 2/2 way NC,NBR Seal,For Vaccum, Water,