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Products  >  100 Series (GAL)  >  Control Functions  >  100FL Modulating Float Controlled Valve  >    

100FL Modulating Float Controlled Valve


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

Purchase Specifications
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.
Quick Sizing
  Valve size same as line or one size smaller
  Maximum flow speed for continuous operation 5.5 m/sec (18 ft/sec)

Design Considerations
  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:

1.  Main Valve
2. Self-flushing filter
3. Cock valve*
4. Needle valve
5. Modulating float pilot valve 

* Optional component


Typical Application

Dorot Modulating Float Controlled valve prevents tank overflow.

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