Kofloc Rotameter with Controller 2504FR Series

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

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

• This flow meter ensures constant flow under the constant pressure on its outlet side even if the pressure on the inlet side changes.
• The flow controller is made on the basis of the Model 2204 with excellent precision control characteristics, permitting smooth control of very small flow.
• The measuring section of the flow meter made on the basis of the high-precision float type flow meter RK1400 ensures highly reliable flow.
  

Specification of Kofloc Rotameter with Controller 2504FR Series

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

Flow range (FS) : From 1–10 ML/MIN to 1–10 L/MIN

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.

Control pressure : The pressure difference between inlet and outlet must be 0.07 MPa or more.

Proof pressure 

5L/MIN or less : 0.7MPa

10 L/MIN or more: 0.5 Mpa

Available scale : 10:1

Material

SS (body: SUS 316, Packing: FKM)

Al (body: Al, Brass, Packing: NBR)

Tapered tube : Pyrex , glass

Float : Pyrex, SUS316, glass

Protective cover : Acrylic resin

Heat resistance : MAX60℃

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