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Dual Pit Diversion System

OVERVIEW

MAK Water’s Clearmake™ diversion systems allow wash down, first-flush, and other contaminant fluids to be captured from un-roofed hard-stand areas for disposal, or pre-treatment (prior to discharge to sewer). During a rain event, diversion systems allow clean rainwater to be harvested or discharged to the storm water system.

Systems are compliant with DEHP, DAFF & OH&S regulations. Clearmake™ storm water diversion systems are also Level 2 Watermarked to comply with your local council discharge requirements.

Where required, control systems are PLC driven, customisable, and can be designed to meet intrinsically safe circuit requirements for hazardous areas.

APPLICATIONS:

  • Vehicle wash down bays
  • Un-roofed hardstand areas
  • External storage areas
  • External bunded storage areas
  • Fuel or chemical storage areas
  • Service stations
  • Storm water and rainwater harvesting applications
  • Mining and heavy equipment workshops
  • Airplane wash down bays
  • Airport taxi/runway

 PROCESS DESCRIPTION:

Demand Driven

MAK Water’s Demand Driven diversion systems are a simple system using only a hydraulic demand valve without a controller. Located in the washer feed line, the demand valve uses hydraulic pressure to open the diversion valve when the washer feed line is opened and a wash down is occurring. When the wash down activity has stopped, the diversion valve will close allowing rainwater falling on the designated area to divert to the storm water system.

First Flush

MAK Water’s First Flush diversion systems use a PLC controller in conjunction with a first flush manifold located in the washer feed line to open/close the diversion valve. Further to this basic function, this system is designed to take a 10mm first flush from the wash pad area at the beginning of a rain event. The first flush is captured in a holding tank for treatment prior to release to the sewer system. Once the first flush has been taken, the diversion valve will close allowing all subsequent rainwater falling on the designated area to divert to the storm water system.

Wash-Down Shutdown

MAK Water’s Wash-Down Shutdown diversion systems incorporate the same features of the first flush system with the addition of a shutdown feature in a rain event. A rain sensor is used to signal a rain event to the controller, which then shuts off supply to the washer for the duration of the rain event. This feature stops any cross contamination between the sewer and storm water connections and is a requirement in some localities.

STANDARD INCLUSIONS + OPTIONS

✓= Standard Supply o = Optional Supply - = Not Applicable

Equipment CM-DIVDD CM-DIVFF CM-DIVWDSD
600x600mm Pit w/- Valve & Checker Plate Lid
600x600mm Pit w/- Silt Tray & Grate
Proprietary Diaphragm Diversion Valve w/ 100mm PE connection
25mm Demand Valve    
First Flush Manifold w/ 1” BSP inlet/outlet connections    
> 1/2” 24v NC Solenoid Valve
> 1” Demand Valve
> 1” Flow Switch
WDSD Manifold w/ 1” BSP inlet/outlet connections    
> 1/2” 24v NC Solenoid Valve
> 1” Demand Valve
> 1” Flow Switch
> 1” 24v NO shutdown solenoid valve
Rain Sensor   o
240v PLC Control System  

 

Disclaimer: MAK Water is continuously updating and improving its products and services, so please contact us for more detailed information or to confirm specifications. MAK Water takes no responsibility for any errors resulting from the use of information contained within this document .

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