Flow
Meter with Flow Controller (Not Subject to Inlet Pressure Change)
MODEL
2504FR SERIES
The constant flow valve
Model 2204 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 gas supply pressure
(inlet side) changes.
Features
1. This flow meter ensures constant flow under the constant pressure
on its outlet side even if the pressure on the inlet side changes.
2. The flow controller is made on the basis of the Model 2204 with
excellent precision control characteristics, permitting smooth control of very
small flow.
3. The measuring section of the flow meter made on the basis of the
high-precision float type flow meter RK1400 ensures highly reliable flow.
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
* Option: Scales for two types of fluids
       2. Flow
range (FS) : From 1–10 ML/MIN to
1–10 L/MIN (Refer to the Capacity Table on page 55.)
       3. Accuracy : FS ±2% (Measurement point)
           The flow fluctuation is within FS ±2% when the inlet pressure changes to
0.07–0.7   MPa under  the flow meter outlet pressure condition.
       4. Control
pressure : The pressure
difference between inlet and outlet must be 0.07 MPa or more.
      5. Proof pressure : 5L/MIN or less : 0.7MPa
                                    10 L/MIN or more: 0.5 Mpa
      6. Available
scale : 10:1
Material :  SS
                 Al
Body block : SUS316
                     Al, Brass
Tapered tube : Pyrex ,
glass
Packing : FKM
                NBR
Float : Pyrex, SUS316,
glass
Protective cover : Acrylic
resin
Heat resistance : MAX60℃
Connection : Rc 1/4
(Standard), Rc 1/8 (Optional)