12 volt brass, Stainless Steel or Plastic solenoid valves can be 2/2 2 port 2 positions normally closed or open, 3/2 way 3 port 2 positions normally closed; normally open or universal, 5/2 5 port 2 position single acting (mono stable single coil), double acting (bi-stable double coil) or 5/3 way 5 port 3 position direct acting or pilot pressure assisted. There is no size limit for this voltage and so port connection sizes would include anything such as 1/8" 0.125 inch, 1/4" 0.25 inch, 3/8" 0.375 inch, 1/2" 0.5 inch,3/4" 0.75 inch, 1" inch, 11/4" 1.25 inch, 11/2" 1.5 inch,2" inch, 21/2" 2.5 inch and 3" inch either with BSP or NPT thread or flange suitable for most air, water, Light Oil, Gas, Vacuum, Steam, Oil, Propane, LPG, Petrol,Diesel, Acid and Alkali gaseous and fluid media.
12vDC is a direct current as is ideal for low power, remote battery operated stations, DIY and domestic projects or general purpose and domestic applications where water or general public, people or children would have access so the low voltage 12 volt power supply would offer greatly increased safety as opposed to the far more dangerous 230vAC Mains supply.
Solenoid valves are available in 2 main operations
Direct acting 12vDC solenoid valves.
Hung Diaphragm also known as Assisted Lift solenoid valves require no pressure differential and will open and close regardless of pressure. These are ideal for low pressure gravity fed systems and closed loop systems or just where pressure differentials are simply unknown or could be variable.
Pressure assisted 12volt solenoid valves.
Servo Assisted also known as Floating Diaphragm solenoid valves require a minimum pressure differential and will only open or close if the inlet pressure is al least 0.2 to 0.5 bar (7psi) higher than the outlet pressure. Ideal for open to atmosphere and higher pressure systems.
12vDC Brass Solenoid Valves
Shako PU220AR
- Function: 2/2 way normally closed
- Operation: direct acting
- Pressure: 0 to 10 Bar
- Port: 1/8, 1/4 or 3/8 BSP or NPT thread
- Body: brass
- Seal: NBR, FKM or EPDM
- Media: vair, water, light oil, vacuum, gas, fluids
AD6000
- Function: 2/2 way normally closed
- Operation: direct acting
- Pressure: 0 to 105 bar
- Port: 1/8" BSP or NPT thread
- Body: brass
- Seal: NBR, FKM, EPDM or PTFE
- Media: air,fluid,water,vacuum,oil,gas
PPA1
- Function: 2/2 way normally closed
- Operation: Direct Acting
- Pressure: 0 to 105 bar
- Port: 1/4" BSP or NPT thread
- Body: brass
- Seal: FKM, EPDM, NBR, PTFE
- Media: fluid, water, light oil, vacuum, light oil, air
AD612
- Function: 2/2 way normally closed
- Operation: Direct Acting
- Pressure: 0 to 1o bar
- Port: 1/4, 3/8" or 1/2" BSP or NPT thread
- Body: brass
- Seal:NBR, FKM, PTFE, Silicone or EPDM
- Media: fluid, water, vacuum, light oil, air
Shako PU220
- Function: 2/2 way normally closed
- Operation: hung diaphragm assisted lift
- Pressure: 0 to 16 Bar
- Port: 3/8, 1/2, 3/4, 1, 11/4, 11/2 or 2" BSP or NPT thread
- Body: brass
- Seal: NBR, FKM or EPDM
- Media: air, water, light oil, vacuum, inert gas
RSG 850
- Function: 2/2 way normally closed
- Operation: direct acting forced pilot
- Pressure: 0 to 16 bar
- Port:1/2, 3/4, 1, 11/4, 11/2 or 2" BSP or NPT thread
- Body: brass
- Seal: FKM, NBR, PTFE or EPDM
- Media: air, water, light oil, vacuum, gas
PU225
- Function: 2/2 way normally closed
- Operation: pressure servo pilot assisted diaphragm
- Pressure: 0 to 16 bar
- Port: 1/2, 3/4, 1, 11/4, 11/2 or 2" BSP or NPT thread
- Body: brass
- Seal: FKM, NBR, PTFE or EPDM
- Media: fluid, water, light oil, vacuum, light oil, air
AAA DB Range
- Function: 2/2 way normally closed
- Operation: Direct Acting
- Pressure: 0 to 25 bar
- Port: 1/4", 3/8" or 1/2" BSP or NPT thread
- Body: brass
- Seal:NBR, FKM
- Media: fluid, water
12vDC Stainless Steel Solenoid Valve
Shako HA Series
- Function: 2/2 way normally closed
- Operation: direct acting
- Pressure: 0 to 20 bar
- Port: 1/8 BSP or NPT thread
- Body: 304 stainless steel
- Seal: NBR
- Media: NBR, EPDM or FKM
Shako JA Series
- Function: 2/2 way normally closed
- Operation: direct acting
- Pressure: 0 to 40 bar
- Port: 1/8 to 1/4" BSP or NPT thread
- Body: 304 stainless steel
- Seal: NBR, EPDM, FKM or PTFE
- Media: air, water, light oil, vacuum & slightly aggressive media.
CS ADS612
- Function: 2/2 way normally closed (double outlet)
- Operation: direct acting
- Pressure: 0 to 10 bar
- Port: 1/8, 1/4, 3/8 or 1/2" BSP or NPT thread
- Body: 316 stainless steel
- Seal: NBR, EPDM, FKM, Silicone or PTFE
- Media: air, water, vacuum, gas & slightly aggressive media
CS ADS6000
- Function: 2/2 way normally closed
- Operation:direct acting
- Pressure: 0 to 105 bar
- Port: 1/8 BSP or NPT thread
- Body: 316 stainless steel
- Seal: EPDM,FKM,Silicone or NBR
- Media: air, water, vacuum, gas, slightly aggressive media
12vDC Plastic solenoid valves
PPA1
- Function: 2/2 way normally closed
- Operation: Direct Acting
- Pressure: 0 to 2 bar
- Port: 1/4" BSP or NPT thread
- Body: PPA
- Seal: FKM,EPDM or Silicone
- Media: very aggressive media,acid and alkali
C40 Series
- Function: 2/2 way normally closed
- Operation: direct acting
- Pressure: 0 to 0.5 bar
- Port: 1/2" BSP or NPT thread
- Body: PVC
- Seal: FKM,EPDM or Silicone
- Media: very aggressive media, acid and alkali
AAA NOPK
- Function: 2/2 way normally closed
- Operation: assisted lift diaphragm
- Pressure: 0 to 7 bar
- Port: 1/2,3/4 or 1" BSP or NPT thread
- Body: Nylon
- Seal: EPDM,FKM or NBR
- Media: air,reverse osmosis,de mineralised water,pure water,mains water
- Option for ATEX
PK Range
- Function: 2/2 way normally closed
- Operation: assisted lift diaphragm
- Pressure: 0 to 7 bar
- Port: 1/2,3/4 or 1" BSP or NPT thread
- Body: Nylon
- Seal: EPDM,FKM or NBR
- Media: air,reverse osmosis,de mineralised water,pure water,mains water
- Option for ATEX
12vDC 3 Way solenoid valves
Shako PU320 Series
- Function: 3/2 way normally closed or 2 way normally open
- Operation: direct acting
- Pressure: 0 to 10 bar
- Port: 1/8 and 1/4 BSP or NPT thread
- Body: aluminium anodised
- Seal: NBR, EPDM or FKM
- Media: air and inert gas
CS VX Series
- Function: 3/2 way normally closed or normally open
- Pressure: 0 to 11 bar
- Port: 1/8 and 1/4 BSP or NPT thread
- Body: Brass
- Seal: NBR, FKM or EPDM
- Media: air, water, gas and light oil
ERA 300201
- Function: 2/2 way normally closed
- Operation: direct acting
- Pressure: 0 to 0.5 bar
- Port: 1/2" BSP or NPT thread
- Body: PVC
- Seal: FKM,EPDM or Silicone
- Media: very aggressive media, acid and alkali
ERA 380 Range
- Function: 3/2 way universal
- Operation: direct acting
- Pressure:0 to 2 bar
- Port: 1/4 to 1/2 BSP or NPT threadd
- Body: brass
- Seal: NBR or FKM
- Media: air, water, gas, Diesel, Bio Fuel, Petrol and light oil
Solenoid valves are available with various functions:
2/2 Way Normally Closed - 1 inlet port and 1 outlet port (2 port), valve can be open or closed (2 position)- solenoid valve stays closed, when 12 volts is applied the 12v solenoid valve opens allowing flow of media. When power is switched off the 12 volt solenoid valve automatically closed (fail safe closed) and thus the flow of media stops.
2/2 Way Normally Open - 1 inlet port and 1 outlet port (2 port), valve can be open or closed (2 position)- solenoid valve stays open, when 12 volts is applied the 12v solenoid valve closes stopping the flow of media. When power is switched off the 12 volt solenoid valve automatically opens (fail-safe open) and thus the flow of media starts.
3/2 Normally Closed - 3 ports 2 positions (port1 inlet, port 2 outlet port 3 exhaust) for either pneumatic cylinder actuation or as a diverting solenoid valve. Without 12 volt supply inlet port is fail-safe closed outlet port can vet to exhaust port. When 12vdc is applied inlet port opens allowing flow to outlet port, exhaust port is closed
For example 3/2 normally closed 12vdc solenoid valve connected to spring return actuator. When no 12vdc power is applied remaining compressed air in the actuator passes back though outlet port and vents to atmosphere through exhaust port of the solenoid valve so actuator can spring return to its closed position.
When 12vdc is applied the inlet opens to outlet and compressed air can enter the actuator causing it to move to the open position. When power is removed again the inlet port closes and outlet port can vent to exhaust port allowing the actuator to vent compressed so that it may return to the closed position.
These 12vDC Solenoid Valves are fitted with interchangeable coils so the same 12vDC solenoid valve can easily be changed to 24vDC, 24vAC, 110vAC or even 220,230 or 240vAC or any other voltage required for the application