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HNL INSTRUMENTS & CONTROLS
Series 1700 Flow Regulators

Series 1721 Series 1735 Series 1713/4/5
  • Flow rate of 0.5 to 3 nl/hr
  • Integral bubbler to enable setting of flow rate
  • Flow rate of 0.5 to 300 nl/hr
  • Operates when mounted at any angle
  • Three flow rates available
    1 to 30 nl/hr
    10 to 100 nl/hr
    30 to 300 nl/hr
  • Flow meter allows precise setting of flow rate
  • Available with bubbler, flow meter or non-indicating
  • Aluminium and stainless steel options
  • High accuracy

Hnl’s precision flow regulators are suitable on many applications where a constant flow of air is required. These applications include use in level measurement where a constant flow of air is required to a dip tube, or in purging applications.
High stability closed loop flow control is an integral part of the construction. The flow regulator maintains a constant differential pressure across an orifice to maintain a flow rate that is independent of the inlet or outlet pressure (typically the flow rate will vary by only +/-1% for a 1 bar change in differential pressure across the regulator). The orifice size is controlled with a needle valve thus providing simple adjustment of the required flow rate.

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HAMALL PROCESS INSTRUMENTS, DEVONPARK MILLS, ALEXANDRA STREET, TILLICOULTRY, CLACKMANNANSHIRE, SCOTLAND, UK. FK13 6HP
TEL NO : 44 (0)1259 753753 FAX NO : 44 (0)1259 752770
Mail to sales sales@hamall.co.uk