PH06(1/4")-1-5-DC24V / 2/2 way NC, Stick PTFE on the Rubber Dia

Details of PH06(1/4")-1-5-DC24V / Diaphragm 2/2 way NC, Stick PTFE on the Rubber Dia

The Diaphragm 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 water supply systems, irrigation systems, pneumatic systems, and various industries.

Working Principle of Diaphragm Solenoid Valve

Main Components

• Solenoid Coil (Electromagnetic Wire Winding): Creates a magnetic field when electric current flows through it.
• Plunger (Movable Iron Rod): Lifted or lowered by the magnetic field.
• Diaphragm (Flexible Rubber/Silicone Sheet): Opens and closes the liquid passage.
• 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 the valve.
• Electricity applied → Plunger is lifted → Opens pilot port → Pressure above the diaphragm decreases → Liquid from below pushes up the diaphragm → Valve opens.

Normal Open (NO) – Normally Open 

• Similar principle but reversed pressure side → Without electricity, valve is open; with electricity applied, valve closes.

Advantages of Diaphragm Valve

• Rapid opening and closing.
• No leakage (as the diaphragm does not have friction like other valves).
• Easy maintenance.
• Suitable for clean liquids such as water, air.

Usage Details

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

Tech Data PH06(1/4")-1-5-DC24V / Diaphragm 2/2 way NC, Stick PTFE on the Rubber Dia