Solenoide Valve Model: WK50(2")-N-5-AC220V / Type K Diaphragm 2/2 way NC, NBR Seal, For Vacuum, Water, Air

Product Details of Solenoid Valve Model : WK50(2")-N-5-AC220V / Diaphragm Type 2/2 way NC, NBR Seal, For Vacuum, Water, Air

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 (Moveable Iron Rod): Lifted or lowered by 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 pilot port → Pressure on both sides of the diaphragm is equal → Diaphragm closes valve
• Electricity applied → Plunger is pulled up → Pilot port opens → Pressure above the diaphragm decreases → Fluid from below pushes the diaphragm up → Valve opens

Normal Open (NO) – Normally Open

• The principle is similar, but pressure sides are reversed → When no electricity valve is open, when electricity applied valve closes.

Advantages of Diaphragm Valves

• Rapid 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

• Potable water system – Controls water in filters and cold water machines.
• Irrigation systems – Opens and closes water according to schedule.
• Food/Pharmaceutical industry – Used with clean fluids that need precise control.
• Pneumatic systems (Compressed Air) – Controls air supply in machinery.
• Home appliances such as washing machines, coffee makers.

Tech Data Solenoid Valve Model : WK50(2")-N-5-AC220V / Diaphragm 2/2 way NC,NBR Seal,For Vaccum, Water, Ai