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Series 1700 Flow Regulators - Introduction
HNL’s precision flow regulators are suitable on many applications where a constant flow of air (or other gas) 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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Series 1713/4/5
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Series 1721
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Series 1735
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The 1713, 1714 and 1715 flow regulators are fitted with an integral variable area flow meter (accuracy +/- 2% of full scale) to enable a precise flow rate to be achieved.
The 1721 flow regulator is fitted with a bubbler flow indicator.
The 1735 flow regulator is supplied without a flow indicator.
All of these models may be site or panel mounted and are available manufactured in anodised aluminium or stainless steel.
QUALITY ASSURANCE
Designed and manufactured by HNL in accordance with BS EN ISO 9001.
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