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ASCO™ 047 High-Flow Solenoid Valve
Manual Reset Valves 047 ASCO
The ASCO Series 047 are manual reset versions of the sturdy ASCO 342 Series (1/4-inch and 3/8-inch NPT) and Series 344 (1/2-inch to 1-inch NPT) valves.
The high-flow solenoid valves come in electrically tripped (trips when energized), no-voltage release (trips when de-energized), or free-handle constructions. They are ideal for mission-critical applications in refining and chemical production.
ASCO™ 047 High-Flow Solenoid Valve


Valve Actuation
Solenoid - Latching
Body Material
Brass; Stainless Steel
Air; Inert Gas; Light Oil; Steam; Water
Pipe / Port Size
1/2 "
Port Type
3 way - 3/2 Universal
From 0.1 Cv to 0.5 Cv
24 AC; 120 AC; 480 AC; 6 DC; 12 DC; 24 DC; 120 DC; 240 DC
Max Differential / Max Operating Pressure
Vacuum to 150 PSIG
Operating Environment
Corrosive; Hazardous; Indoor
Standards / Regulations
CSA; Type 3; Type 7; Type 9


  • 1/4-inch and 3/8-inch NPT models are direct acting to provide maximum flow for their size
  • 1/2-inch to 1-inch NPT versions have poppet construction for high flows and tight shutoff
  • Once tripped, the valves can only be manually reset to automatic operation
  • Intrinsically safe constructions are available for hazardous environments