ASCO 202 Solenoid Valves – Preciflow Proportional Medical & Analytical Valve

ASCO 202 solenoid valves.

ASCO 202 solenoid valves. T&D are an ASCO Numatics Authorised Distribution Channel.

ASCO 202 solenoid valves are part of the ASCO Red Hat range of valves.

ASCO 202 solenoid valves and preciflow proportional valves designed for the control of air and inert gases by varying electrical input signal to the coil.

With low hysteresis, excellent repeatability and high sensitivity, the ASCO 202 solenoid valves are ideal for high precision flow control.

ASCO 202 Solenoid Vales – Product Features

The compact friction-less architecture saves valuable space in analytical and medical instrumentation. In addition the valves do not require a minimum operating pressure and are well suited to vacuum operation.

Other key features include power consumption as low as 1W to meet the most stringent instrument power requirements.

ASCO 202 solenoid valves also meet all relevant CE directives, and are RoHS compliant.

ASCO 202 Solenoid Valves – Typical APPLICATIONS

Typical applications include:

  • Gas Chromatography
  • Mass Flow Controllers
  • Dental Equipment
  • Blood Pressure Monitoring

ASCO 202 Solenoid Valves – Technical Specifications

Coil Insulation ClassF
ConnectorLead Wires 24 AWG; L = 500mm
Electrical SafetyIEC 335
Electrical Enclosure ProtectionIP50
Standard Voltages6 VDC, 12 VDC, 24 VDC
Voltage Regulation0-6 VDC, 0-12 VDC, 0-24 VDC
Pulse-width Modulation (>1000Hz)
Flow Regulation CharacteristicsHysteresis typ. 5%; Repeatability typ.
1%; Sensitivity typ. 0.1%


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

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