Bypass separators fully treat all flows generated by rainfall rates of up to 6.5mm/hr. These separators are used when it is considered an acceptable risk not to provide full treatment for high flows, for example where only small spillages occur and the risk of spillage is small such as on short stay car parks.
Features & Benefits
• Fully compliant to the Environment Agency’s PPG3 guidelines
• Major installed cost savings
• Fully tested and verified with a range from CNSB 3 to CNSB 1000 (class 1)
• Full BSI certification
• Exceeds industry standards
• An Environment Agency verified manufacturer
• Easy to service
• Car parks
• Roadways & major trunk roads
• Light industrial & goods yards
• Discharge to sensitive environment
Area Drained: 1667 sq/m
Length Incl.Silt: 1,400mm
Silt Capacity: 300L
Oil Storage Capacity: 45mm
Process and Performance
The Conder range of Bypass separators are designed to treat all of the flow up to the designed nominal size. Any flow in excess of the nominal size is allowed to bypass the separation chamber thus keeping the separated and trapped oil safe. During the early part of a rain storm which is a time of high oil contamination, all of the contaminated waterflow passes through a sediment collection chamber and enters the separation chamber through a patented oil skimming and filter device. This ensures that all of the oil proceeds to the separation chamber where it is separated to the Class 1 standard of 5 mg/l and safely trapped. As the rain storm builds up to its maximum and the level of oil contamination reduces significantly, the nominal size flow continues to pass through the separation chamber and any excess flow of virtually clean water is allowed to bypass directly to the outlet.
Please note that the Environment Agency insists that all separators are without exception, legally required to be fitted with a robust alarm device to provide visual and audible warning when the level of oil reaches 90 per cent of the oil storage volume under static level conditions. This automatic warning device indicates that the separator is in need of immediate emptying in order for it to continue to work effectively.
Standard pipework on bypass separators will be 150mm, 225mm or 300mm. Please advise of the size of pipework for your separator at point of order.
Orientation for separator pipework is set at a standard 12 o’clock for the inlet and 6 o’clock for the outlet.
Please note all separators should be installed with a concrete surround.
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For more information, installation instructions and prices, please call 01773 767611.