CrystalClean Separator – Twin Vault

Please refer to the product overview for details of operation. The maximum flows shown are usually the 10-year or 25-year flows taken from the pipe system design chart. Water Quality flows are typically 20 to 30% of this flow. Our designs analyze and can accept the largest expected storm flows, but center their efficiency around the water quality storms. Your local regulations may allow slightly higher than maximum flows, or may require slightly lower flow limits. The chart under "Technical Details" is to get you started. Please visit our Links & Downloads section to get a CrystalStream Design Sheet or complete our Online Design Form to get a design specific to your area.

  • Model Number: i. e. Model 2466

In twin vault systems, the trash screening basket and two of the three baffles are in the front vault. A third baffle, the spill protection reservoir, and the coconut fiber filter are in the second vault. Flows enter the device from the endwall, top, or either side wall of the front vault, pass through the treatment elements in that vault, and then cross over to the second vault via a connector pipe. The flows then pass through the remaining elements in the second vault, and exit out the back of that vault through the endwall, or either side wall. The two vaults can be parallel, as shown in the sketch above, or in line. They also can be set up in other arrangements to accommodate your storm drain design. You may want to look at the sketches in the “Array” section of products to see other possible arrangements. The sizes of our twin vault devices are shown in the Technical Details tab. In some areas, other sizes may be available.

Model Vault Dimensions (L x W x H) Total Flow Path Maximum Flow File Name
1246 6' x 4' x 6' (Uses 2 Vaults) 12' 12 cfs 1246-3-View.pdf
1856 9' x 5' x 6' (Uses 2 Vaults) 18' 20 cfs 1856-3-View.pdf
2056 10' x 5' x 6' (Uses 2 Vaults) 20' 25 cfs 2056-3-View.pdf
2466 12' x 6' x 6' (Uses 2 Vaults) 24' 36 cfs 2466-3-View.pdf