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Hattersley Technical Product Guide - FIVESUITE :: Content ...

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BALANCING VALVES - AUTOMATIC<br />

PN25<br />

Fig. C305<br />

AutoFlow Cartridges<br />

Automatically maintains flow at the specified rate regardless of fluctuations in system pressure.<br />

CARTRIDGES<br />

Cartridges are available in 6 ranges of working differential pressure.<br />

Body colour allows easy identification of each:<br />

• White 15-85 kPa (W code) • Gray 55-380kPa (O code)<br />

• Blue 32-180kPa (B code) • Black 60-480kPa (A code)<br />

• Red 45-280kPa (R code) • Green 65-580kPa (G code)<br />

A numeric code is stamped on each cartridge, this together with the colour codes, identifies each cartridge.<br />

Example: White 15=15-85 kPa - 0.076 l/s • Red 17=45-280 kPa - 0.165 l/s<br />

Nominal<br />

cartridge<br />

flow<br />

For Commissioning Valve Coefficients please refer to pages 49-51.<br />

Every effort has been made to ensure that the information contained in this publication is accurate at the time of publishing.<br />

<strong>Hattersley</strong> Ltd assumes no responsibility or liability for typographical errors or omissions or for any misinterpretation of the<br />

information within the publication and reserves the right to change without notice.<br />

20<br />

Flow<br />

Min ΔP Max ΔP<br />

ΔP<br />

Test points allow verification of differential pressure range.<br />

Flow regulation<br />

accuracy +/-10% of<br />

nominal flow<br />

<strong>Technical</strong> Helpline: 0845 604 1790<br />

E: tech-enquiries@hattersley.com W: www.hattersley.com

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