• Kofloc Flow Meter With Flow Controller Model 2503F Series

    Flow Meter with Flow Controller (Not Subject to Load Pressure Change)


    The constant flow valve Model 2203 that permits constant flow and the precision flow meter RK1400 are combined in this flow meter to permit high-precision measurement and control of a wide flow range, from very small flow to medium flow, when the pressure on the load side (outlet side) changes.


    1. This flow meter ensures constant flow under constant pressure on its inlet side even if the load pressure loss on the outlet side changes.

    2. The measuring section of the flow meter is based on the highprecision float type flow meter RK1400.

    3. The precision valve permits smooth and stable control of very small flow.

    4. Constant pressure on the inlet side eliminates pressure errors of the float type flow meter, allowing a complete flow control system to be configured. 

    Standard Spesifications :

    1. Fluids : Air,N2,O2,H2,He,Ar,CO2 (Calibration with actual gas) For other gases, please consult us regarding  conversion conditions or calibration with the actual gas to be used.
               * Option: Scales for two types of fluids

          2. Flow range (FS) : From 1–10 ML/MIN to 2–20 L/MIN (Refer to the Capacity Table on page 55.)

         3. Accuracy : FS ±2% (Measurement point) (under specified constant primary pressure)

         4. Control pressure : The pressure difference between inlet and outlet must be 0.05 MPa or more.

         5. Proof pressure : 5 L/MIN or less: 0.8 MPa
                                       10 L/MIN or more: 0.5 Mpa

         6. Available scale : 10:1

            Material :

            a). Body block
                   SS : SUS316
                   Al : Al, Brass

     b). Tapered tube : Pyrex®, glass

     c). Packing
                   SS : FKM
                   Al : NBR

    d). Float :  Pyrex, SUS316, glass

    e). Protective cover : Acrylic resin

    f). Heat resistance : MAX60

    g). Connection : Rc 1/4 (Standard), Rc 1/8 (Optional)
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