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 Secondary Pressure Flow Controller

A flow controller is a differential pressure regulator designed to control minute gas flow with precision and keep a certain constant flow rate. Model 2203 Variable Secondary Pressure Flow Controller is a control valve that keeps mass flows at a constant rate under a given constant level of supply pressure even when the load pressure on the secondary side (outlet side) fluctuates,and its construction is designed so that the performance of its precision control over flows to the set flow rate is maintained by the incorporated precision needle valve without being affected by such fluctuations.

  • Stable flow control
    A non-rotary needle valve composed of high-precision components ensures smooth control of minute flows.
  • Not subject to load pressure fluctuations
    The incorporated precision needle valve protects flows from being affected by secondary or outlet pressure fluctuations,so the product is a 'must-be' tool in the first stage of any flow control line.
  • Cleanliness ensured
    All the components are super-cleaned before assembly so that the product can be safely used even on instruments for analysis for which cleanliness is essential
  • Gas chromatographs
  • Environmental instrumentation systems
  • Gas mixing systems in various fields
Standard Specifications
Flow rating 10ml/min to 20l/min
Control accuracy Within ±1.0% of the set value to load pressure fluctuations(on condition of 0.05 Mpa or more of inlet /outlet differential pressure)
Needle valve rotating speed for adjustment Approx. 12-13 turns
Max. operating pressure (A)0.8MPa
Max. working temperature (A)70°C
Materials of parts exposed to fluids A:Al,Brass,Duracon,NBR
Connection end M8+Rc1/8
Optional Items
  • IN side filter joint Model 2300B
  • Connection joint
  • For information on available types of connection ends and filter joints other than those standard,please contact us.
  • You may specify the supply pressure,fluid 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.
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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.