The main valve is controlled by a float valve, located in the tank or reservoir and set at the required maximum water
level. The valve maintains the maximum level continuously.
||Accurate and repeatable level control|
||Simple and reliable design|
||Easy installation and maintenance|
||Adjusts the inlet flow to the reservoir's outlet flow|
||WRAS Approval no. 0009092|
The valve will be hydraulic, direct sealing diaphragm type, which allows inline maintenance. No stem, shaft or guide bearing will be located within the water passage.
The valve will be activated by the line pressure and be operated by a modulating, 2-way float activated pilot
valve. The valve and the controls will be a Dorot Series 100 valve or similar in all aspects.
||Valve size same as line or one size smaller |
||Maximum flow speed for continuous operation 5.5 m/sec (18 ft/sec)|
||The valve should be suited for the maximal flow|
||Upstream pressure at closed position should be at least 10m (15psi) higher than the hydrostatic water pressure|
at the downstream
||Large pressure differentials may cause cavitation damage.|
Consult Dorot for solutions if such cases are expected
||Prefer use of differential level control in case excessive noise should be avoided (residential areas)||
Optional Control System Components:
||Main Valve |
||Self-flushing filter |
||Modulating float pilot valve |
* Optional component
Dorot Modulating Float Controlled valve prevents tank overflow.