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ASCO™ 284 2-Way Solenoid Pinch Valve
Series 284 Pinch Mechanism
The ASCO Series 284 of 2-way solenoid pinch valves are designed for use with highly aggressive or high-purity liquids in analytical and medical instrumentation, sterile and aseptic systems, and food applications.
The aluminum body, 2-way valves hermetic separation of the control mechanism and the fluid within the tubing prevents particulate contamination caused by friction of moving parts and assures maximum purity of liquids. Typical applications include hemodialysis equipment, urinary collection and intravenous (IV) systems, and drug dispensing.
ASCO™ 284 2-Way Solenoid Pinch Valve


Valve Actuation
Body Material
Aggressive Liquids/Gases
2 way - 2/2 Normally Closed; 2 way - 2/2 Normally Open
12 DC; 24 DC - 50/60
Max Differential / Max Operating Pressure
Vacuum to 150 PSIG
Operating Environment
Standards / Regulations
IP65; IP40


  • Pinch mechanism eliminates turbulence when cutting off flow
  • Silent operation for hospital/clinical environments
  • Removable and rotatable electrical coils allow for easy installation and worry-free maintenance
  • Manual pulse control for fitting tubes
  • Bi-directional flow for exceptional versatility
  • Available in a wide range of body sizes to accommodate a variety of tubing sizes