The ASCO Series 202 Preciflow solenoid valves are designed to precisely control the flow rates in medical equipment and analytical instrumentation. They proportionally control the flow of air and inert gases by varying the electrical input signal to the coil. The compact, ultra-reliable valves are suitable for applications such as gas chromatography, mass flow controllers, dental equipment, and blood pressure monitoring instruments.
Valve ActuationProportional; Solenoid
Body MaterialBrass; Stainless Steel
MediaAir, Inert Gas; Fuel Oil; Light Oil; Water
Pipe / Port Size1/8 "; 1/4 "; 1/2 "; 3/8 "
Port TypeG ISO228/1-G BSPP
Function2 way - 2/2 Normally Closed
FlowLess than .05 Cv; From .05-.1 Cv; From 0.1 Cv to 0.5 Cv
Max Differential / Max Operating PressureVacuum to 10.3 Bar
Standards / RegulationsIP65
Low hysteresis (< 5%), excellent repeatability (< 3%), and high sensitivity (< 2%) make the valves ideal for high-precision flow control
Minimum operating pressure is not required, and the valves are well-suited for vacuum operation
Compact frictionless architecture saves valuable space in analytical and medical instrumentation
Power consumption as low as 1 W fulfills the most stringent instrument power requirements
Meets all relevant CE directives, and is RoHS compliant for applications in lead-free environments