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Latching and Bi-Stable Solenoid Valves.

Latching Solenoid valves are a very eco environmentally friendly way for On/Off control of gases and fluids. The Latching Solenoid valve is briefly energised to change and maintain its state from i.e. closed to open or Open to Closed without the need for continuous electrical supply. When the valve is required to change state to close or open the electrical polarity is reversed and a brief power pulse applied. This reduces the amount of electricity required, reducing costs heat build up and extending coil life, this is ideal for battery powered applications.

There are two main types of Latching Solenoid Valve

Direct Acting Latching Solenoid Valve also known as these valves will open or close regardless of the pressure in the system and are ideally suited to low pressure, gravity fed and closed loop systems.

Servo Assisted Latching Solenoid Valve also known as these valves utilise the pressure differential across the solenoid valve to the open and close the valve via a pilot system and are ideally suited to high pressure and open to atmosphere systems. 

The more commonly used Green and environmentally friendly bi-stable latching solenoid valves are listed below. You can read more about bistable valves here.
Latching Solenoid Valve Plastic RPE Series 115BB from stock
Bi stable nylon solenoid valve 115BB RPE
Function: 2/2 latching (Bi-Stable)
Operation: pressure assisted
Media: water and other inert Liquids
Voltage: 6vDC, 9vdc or 12vdc
Pressure 0.2 to 10 Bar
Port Sizes 1/4, 3/8, 1/2, 3/4 and 15mm JG Push Fit
Latching Solenoid Valve Series LPA 2/2 Nylon Solenoid Valves UK Stock
latching delrin solenoid valve LPA
Function: 2/2 latching (bi-stable)
Operation: pressure assisted
Media: RO water,demin water and slightly aggressive media
Voltage: 12v or 24vDC
Pressure 0.2 to 10 Bar
Port Sizes 3/8, 1/2, 3/4, 1, 11/4 and 11/2 BSP or NPT
Latching Solenoid Valve Series AD6000 2/2 Brass Solenoid Valves UK Stock
latching miniature brass solenoid valve LAD6000
Function: 2/2 latching (bi-stable)
Operation: direct acting 
Media: water,air,oil,vacuum and other inert liquids and gases
Voltage: 12vdc or 24vdc
Pressure 0 to 42 Bar
Port Sizes 1/8 BSP or NPT thread
Latching Solenoid Valve Series LAD8000 2/2 Brass Solenoid Valves UK Stock
latching miniature brass solenoid valve LAD8000
Function: 2/2 latching (Bi-Stable)
Operation: direct acting 
Media: water,air,oil,vacuum and other inert liquids and gases
Voltage: 12vdc or 24vdc
Pressure 0 to 42 Bar
Port Sizes 1/4 BSP or NPT thread
Latching Solenoid Valve Series LAD612 2/2 Brass Solenoid Valves UK Stock
latching miniature brass solenoid valve LAD612
Function: 2/2 latching (bi-stable)
Operation: direct acting 
Media: water,air,vacuum,oil and other inert liquids and gases
Voltage: 12vdc or 24vdc
Pressure 0 to 3.5 Bar
Port Sizes 1/8 BSP or NPT thread
Latching Solenoid Valve Series LAD1550 2/2 Brass Solenoid Valves UK Stock
latching brass solenoid valve LAD1550
Function: 2/2 latching (bi-stable)
Operation: assisted lift 
Media: water,air,oil,vacuum and other inert liquids and gases
Voltage: 12vdc or 24vdc
Pressure 0 to 3.5 Bar
Port Sizes 3/8, 1/2, 3/4, 1, 11/4, 11/2 or 2" BSP or NPT thread or Flange
Latching Steam Solenoid Valve Series LSA 2/2 Brass Solenoid Valves UK Stock
latching steam solenoid valve LSA
Function: 2/2 latching (bi-stable)
Operation: pressure assisted  piston
Media: steam,water and other inert liquids and gases
Voltage: 12vdc or 24vdc
Pressure 0.5 to 20 Bar
Port Sizes 1/4, 3/8, 1/2, 3/4, 1, 11/4, 11/2 or 2" BSP or NPT thread or flange
Latching Solenoid Valve Series LADS6000 2/2 Stainless Solenoid Valves UK Stock
latching miniature stainless solenoid valve LADS6000
Function: 2/2 latching (bi-stable)
Operation: direct acting 
Media: water,air,oil,vacuum and slightly aggressive media.
Voltage: 12vdc or 24vdc
Pressure 0 to 42 Bar
Port Sizes 1/8 BSP or NPT thread
Latching Solenoid Valve Series LADS8000 2/2 Stainless Solenoid Valves UK Stock
latching miniature stainless solenoid valve LADS8000
Function: 2/2 latching (bi-stable)
Operation: direct acting 
Media: water,air,oil,vacuum and slightly aggressive media.
Voltage: 12vdc or 24vdc
Pressure 0 to 42 Bar
Port Sizes 1/4 BSP or NPT thread
Latching Solenoid Valve Series LADS812 2/2 Stainless Solenoid Valves UK Stock
latching miniature stainless solenoid valve LADS612
Function: 2/2 latching (bi-stable)
Operation: direct acting 
Media: water,air,oil,vacuum and slightly aggressive.
Voltage: 12vdc or 24vdc
Pressure 0 to 3.5 Bar
Port Sizes 1/4,3/8 and 1/2 BSP or NPT thread
Latching Solenoid Valve Series LADS1550 2/2 Stainless Solenoid Valves UK Stock
Latching stainless solenoid valve LADS1550
Function: 2/2 latching (bi-stable)
Operation: assisted lift  diaphragm
Media: water,air,oil,vacuum and slightly aggressive.
Voltage: 12 volt  or 24 volt
Pressure 0 to 3.5 Bar
Port Sizes 3/8, 1/2, 3/4, 1, 11/4, 11/2 or 2" BSP or NPT  thread or flange
High Pressure Latching Solenoid Valves for fire fighting systems from Solenoid Valves UK
Brass Solenoid Valve for fire fighting systems EN52000
Function: 2/2 latching (bi-stable)
Operation: direct acting 
Media: inert gas
Voltage: 12vdc or 24vDC
Pressure 0 to 300 Bar  
 
 
Media
Port Size - Type
Port Option
N-open/closed
Min Pressure
Max Pressure
Body Material
Protection
Special Option

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