ASCO 221 Solenoid Valves – Pilot Valve 2 Way NC NO Brass

ASCO 221 solenoid valves. T&D are an ASCO Numatics Authorised Distribution Channel.

ASCO 221 solenoid valves. T&D are an ASCO Numatics Authorised Distribution Channel.

ASCO 221 solenoid valves are part of the ASCO Red Hat range of valves.

  • Manufacturer : ASCO
  • Product : Solenoid Valve
  • Type : Pilot
  • Series : ASCO 221
  • Valve Body :Brass
  • Valve Voltage : 24, 120, 240, 480 volts AC, 60 Hz (or 110, 220 volts AC, 50 Hz). 6, 12, 24, 120, 240 volts DC
  • Flow Control Media : Air:Inert Gas, Water, Oil, Liquids – corrosively aggressive media
  • Valve Function : Normally Open or Normally Closed 3/8 to 2-1/2 –  2 Way: 2/2

NC = Normally Closed Valve

NO = Normally Opened Valve


CSA certified (Excludes 8221G015, -035, -G035).

UL listed, General Purpose Valves.

RedHat II meets applicable CE directives


  • Pilot operated, normally open or normally closed
  • Snubber slows disc closing speed to protect system against water hammer damage more effectively than other techniques
  • Pressure spike due to water hammer is reduced to a point eliminating the need for suppressors or other controls in most water systems
  • Fluid Controls Institute Inc. evaluations have classified these valves: Pipe Sizes Class 3/8″, 1/2″, 3/4″  1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″ FCI-82-1 CC BB

Typical applications of the ASCO 221 solenoid valves include in Medical & Life Science, Oil & Gas, Chemical and Water and Wastewater.

ASCO 221 Solenoid Valves – Product Construction

Valve Parts in Contact with Fluids
Core Tube305 Stainless Steel
Core and Plugnut430F Stainless Steel
Springs302 Stainless Steel
PistonStainless Steel or Brass
Shading CoilCopper

ASCO 221 Solenoid Valves – Electrical Characteristics

Standard Coil and Class of InsulationWatt Rating and Power ConsumptionSpare Coil Part No.
DC WattsACGeneral PurposeExplosion proof
WattsVA HoldingVA InrushACDCACDC
F11.66.11630ASCO 238210ASCO 238710ASCO 238214ASCO 238714
F16.816.13595ASCO 272610ASCO 97617ASCO 272614ASCO 97617
F22.6ASCO –ASCO – 238710ASCO –ASCO 238714

Hazardous Area LOCATIONS Certification

ASCO 221 valves are CSA certified – available with explosion-proof solenoid enclosure and also UL listed for fire protection systems. CSA certified solenoid valve. T&D distribute the complete range of hazardous area solenoid valves manufactured by ASCO.

Hazardous Area Solenoid Valves

ASCO Hazardous Area Solenoid Valves ATEX • CSA • FM • UL • IECEx • NEPSI • INMETRO • TR CU


ASCO solenoid valves (2-way, 3-way and 4-way type including NAMUR interfaces) control the critical flow of air, gas, water, oil and steam across all industries – hazardousSIL IEC 61508 - Solenoid Valves area solenoid valves are available for Division and Zone classifications.

Class I, Division 2 and Zone 1/Zone 2 approved solenoid valves according to ATEX, IECEx, FM, CSA and UL are available. Flameproof and explosion-proof valves can be specified for potentially explosive atmospheres where there is a presence of flammable liquids, gases or vapours.

ASCO valves improve reliability and performance of safety systems according to IEC 61508, IEC 61511 and Safety Integrity Levels (SIL) – ASCO spool valves with SIL 4 capability are SAEL listed as assessed by Exida and TÜV.

➡ Did you know? T&D Exports support the global oil, gas and petrochemical industries providing a single-source supply capability of Hazardous Area Equipment across Electrical, Mechanical, Process & Instrumentation ranges.

Solenoid Valves ASCO

Data Sheets