2204 SERIES

Variable Primary Pressure Flow Controller (Not subject to supply pressure variations)

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) changes by 0.3MPa in a range
between 0.07 MPa and 0.8 MPa.

Number of turns of regulating screw : Approx. 12 turns

Maximum operating pressure : 0.8 Mpa

Maximum operating temperature : 60℃

Materials of parts in contact with fluids : (A) Al, brass, POM, NBR, SUS316
(SS) SUS316, fluorocarbon resin, FKM

Connection end : Rc 1/8 (M8 + Rc 1/8)