Kofloc Model 2600 Flow Valve for Liquid

Kofloc Model 2600 Seris | Constant Flow Valve for Liquid

This is a constant flow valve developed for liquids and maintains a constant liquid flow irrespective of pressure changes on the primary and secondary sides.


  1.  Excellent constant flow valve for liquids
    • The valve is made of high-precision parts for smooth control.
  2. Immune to pressure changes
    • The valve keeps the flow constant irrespective of changes in the primary- and secondary-side (outlet-side) pressure.
  3. Control of very small flow from 10 ml/min
  4. Upper and lower diaphragm chambers equipped with airbreathers
    • Air-breathing during the initial flow setting permits high accuracy control.


  • Analyzers
  • Environmental measuring instruments
  • Liquid mixing equipment

 Standard Specifications

  1.  Fluid
    • Model 2600-S: H2O
    • PVC: H2O
  2.  Flow rating (at H2O calibration condition)
    •  Model 2600-S: 1-10 ml/min, 10-100 ml/min, 0.1-1 L/min
    • PVC :  1-10 ml/min, 10-100 ML/MIN, 0.1-1 L/min
  3.  Control accuracy Note 1
    • Model 2600-S: ±3% F.S.
    • PVC: ±3% F.S.
  4.  Operating differential pressure: 0.1 MPa or more
  5.  Operating pressure: 0.1-0.5 Mpa
  6.  Proof pressure: 0.7 Mpa
  7.  Materials of parts in contact with fluids
    • Model 2600-S: SUS 316, Viton, fluorocarbon resin
    • PVC: PVC, SUS 316, NBR, Viton
  8. Operating temperature: 15-35℃
  9. End connection
    • Model 2600-S: Rc 1/4
    • PVC: Rc 1/8

Note: The control accuracy is guaranteed only when the fluid temperature is constant because the viscosity varies with temperature.

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Rudy Wiratama


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