Flow Control Valves
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Precision Needle Valve w/Non-rotary Needle MODEL 2412 SERIES Bellows Needle Valve (for rigid control of leaks) MODEL 2450 SERIES
Simplified Paramount Miniature Needle Valve MODEL 2400 SERIES Multidial Type Precision Needle Valve MODEL 2412M SERIES
Variable Secondary Pressure Flow Controller MODEL 2203 SERIES Variable Primary Pressure Flow Controller(Not subject to supply pressure variations) MODEL 2204 SERIES
All-Teflon Constant Flow Valve for Liquids/Chemicals MODEL 2600 SERIES Constant Flow Valve for Liquids MODEL 2600 SERIES
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Check to see which best fit your needs. If you have any questions, please call for assistance at 1-800-790-7837 or e-mail sales@netmotion.com
 Flow Control Valves
Variable Primary Pressure Flow Controller(Not subject to supply pressure variations)

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.


  • Stable flow control
    A non-rotary needle valve composed of high-precision components ensures smooth control of even ultra-minute flows.
  • Not subject to supply pressure fluctuations
    Flows are protected from being affected by primary pressure(supply pressure) fluctuations,under a given constant
  • 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.
  • Physical and chemical appliances
  • Control of the second-stage operation of pumps
  • Various instruments for analysis
  • Environmental instrumentation systems
Standard Specifications
Flow rating 10ml/min to 10l/min
Control accuracy Within ±2% of the set flow value to pressure fluctuations in a range of 0.3 MPa when the primary pressure (input pressure) varies between 0.07 Mpa and 0.8 Mpa.
Regulating screw rotating speed 12-13 turns
Max. operating pressure 0.8MPa
Max. working temperature (A)70°C
Materials of parts exposed to fluids A:Al,Brass,Duracon,NBR
Connection end Rc1/8
Optional Items
  • IN side filter joint Model 2300
  • Connection joint
  • You may specify the fluid,pressure and flow rate of your equipment for our selection of the type that most suits your requirements.Use the values on Table of Rated Flow Ranges for reference purposes only.
  • At least an inlet/outlet pressure difference of 0.07 MPa is required.
Click below to request for a quotation:
For further information, please contact NetMotion, Inc. at 1.800.790.7837 or 510.578.2814 or e-mail sales@netmotion.com
Copyright © 2007 NetMotion, Inc.