ASCO 068 Series Flapper Isolation Valve (16 mm & 22 mm)

Brand: ASCO

The ASCO 068 Series flapper isolation valve is designed for use with neutral or aggressive liquids and gases in analytical and medical systems.

Its excellent self-draining capability and easy-to-flush low-volume internal cavity make the valve ideal in applications where cross-contamination must be minimized.

The valve's special flapper mechanism results in no pumping or sticking effect of the valve seat. Typical applications include hematology, chromatography, liquid sample preparation, in-vitro diagnostics, DNA sequencing, and surgical fluid management.
  • Fast response time and exceptional volume control result in higher productivity and more precise measurements
  • Reduced heat transfer between control mechanism and fluid make them ideal for use with heat-sensitive reagents and biological samples
  • Hermetic separation of control mechanism prevents particulate contamination caused by friction of moving parts, assuring maximum purity of liquid samples
  • High-quality materials tested in excess of 10 million cycles
  • Large orifice sizes combined with the special flapper mechanism permit high-pressure operation (up to 116 psi)
  • Available in three mounting options and two electrical configurations to ensure system compatibility



Body Material

  • Engineered Plastics


  • From 0.5 Cv to 1.0 Cv, from 0.1 Cv to 0.5 Cv


  • 2-Way - 2/2 Normally Closed


  • Aggressive Liquids & Gases

Operating Environment

  • Corrosive, Indoor

Pipe / Port Size

  • 1/8, M5

Port Type

  • G ISO 228 / 1-G BSPP

Standards & Regulations

  • IP65

Valve Actuation

  • Proportional, Solenoid


  • 12 DC, 24 DC, 12 to 24 DC Voltage Ranging / 60
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