MODEL 2204 SERIES
Model 2204 Variable Primary Pressure Flow Controller is a control valve that always keeps flows at a constant rate under a given constant level of secondary pressure (outlet pressure) even when the primary pressure (inlet pressure) fluctuates. The built-in precision needle valve accurately
controls flows to the set flow rate, including ultra-minute flows.
Features
1.Stable flow control
A non-rotary needle valve composed of high-precision components ensures smooth control of even ultra-minute flows.
2.Not subject to supply pressure fluctuations
Flows are protected from being affected by primary pressure (supply pressure) fluctuations, under a given constant level of secondary pressure (outlet pressure).
3.Cleanliness ensured
All the high-precision components are super-cleaned before assembly so that the product can be safely used even on high-sensitivity instruments for analysis for which cleanliness is essential.
Applications
1.Physical and chemical appliances
2.Control of the second-stage operation of pumps
3.Various instruments for analysis
4.Environmental instrumentation systems
Standard Applications
|
Rated flow ranges |
Gas: 10 ML/min–10 L/min |
|
Control accuracy |
Within the set flow ±2% when the primary pressure (inlet pressure) |
|
Number of turns of regulating |
Approx. 12 turns |
|
Maximum operating pressure |
0.8 MPa |
|
Maximum operating temperature |
60℃ |
|
Materials of parts in contact |
(A) Al, brass, POM, NBR, SUS316 |
|
Connection end |
Rc 1/8 (M8 + Rc 1/8) |