BIP/Accu-Tab Gravity Feed Chlorination Unit
The Gravity Return System represents the ultimate in reliability with negligible capital costs. Nothing moves but the water. All that’s required is the PVC chlorinator, a rotameter, a few valves and some PVC pipe.
As illustrated, a gravity return installation routes a sidestream of the main water flow through a simple rotameter and valve used to adjust the flow of the chlorinator. The chlorinator must be in an elevated position so that its effluent drains by gravity (to ensure that the chlorinator never fills with water). The specific chlorinator model, rotameter and piping size necessary will vary, depending on the chlorine dosage required.
Being calcium hypochlorite-based, the Accu-Tab system is not required to have a separate entry building or room, as is the case with chlorine gas, and takes up a fraction of the space required for a similar bleach system. As a result, the system can often be installed in smaller, more convenient locations, increasing both operational efficiency and reducing chemical delivery problems. Since the chlorine effluent is never pressurized, the potential of a chlorinated solution spraying out of a corroded or broken pipe is eliminated.
The system is easily adaptable for automatic control with the addition of an actuated control valve to adjust incoming water flow and an ORP or residual chlorine analyzer.
Benefits of the Gravity Return System
- Safer – no leaks or spills
- Simple – nothing moves except the water
- Low capital costs – negligible by comparison
- Convenient – located right at the addition point
- Minimal training required
These units can easily be customized to your individual requirements. For information on optional equipment and/or specialized unit configurations, contact us.