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ASCO™ Series L257 General purpose solenoid valves
ASCO L123/L257/L323 General Purpose
ASCO Series L257 general purpose valves are designed to control water, air, inert gases, steam and non-aggressive fluids.
These valves can be used for wide range of industrial applications. These valves are available in 2/2 or 3/2 normally closed, open or universal service versions plus proportional control and latching versions.
ASCO™ Series L257 General purpose solenoid valves


Body Material
PPS (Polyphenilsulfure) fiberglass reinforced
Valve Actuation
Solenoid - Direct Acting
2 way - 2/2 Normally Open
Maximum allowable pressure (PS)
10 bar
Fluid temperature
0°C +130°C
Max viscosity
5°E (~37 cStokes or mm2/s)


  • Direct acting solenoid valve.
  • Suitable for vacuum at port “P” (PA – PP = max 1 bar)
  • Suitable to shut off liquid and gaseous fluids
  • Suitable for low pressure steam and applications in sterilising autoclaves