E. Equipment
1. All pumps within the systems are submersible (with the exception of the discharge pump to a filter from the ozone chamber). Motors are constructed with open windings and operate in clean dielectric oil for cooling windings and lubricating motor bearings. Motor shafts are sealed with ceramic shaft seals. Integral motor and pump shaft corrosion protected.
2. All pump motors operate on 115v, 60-Hz, single phase power (230V or 430V optional).
3. Pump and motor housings are cast iron, bronze, or stainless steel. No suction strainers or screens of any type are used. All fasteners are stainless steel or fiberglass construction.
4. Multiple pumps are employed to facilitate interchange and minimize the number of variable pump sizes within a single plant. The effluent pump is selected to satisfy discharge head requirements.
5. No valve or similar volume-limiting devices are installed on the liquid suction or discharge sides of any pump.
6. A custom-designed electrical control system is housed in an approved NEMA electrical box.
7. The control panels include PLC circuit breakers for motor protection, control relays, and power relays. Electrical control equipment is suitable for operation at 115V, 60 Hz, single phase. Electrical control equipment operating on 120V, 50 Hz, single phase is available on special order as well as 208/115V, 3-phase. Control panels are UL-listed and approved for industrial application and use.
8. The electrical control panel contains an alarm circuit so that an alarm powered by a rechargeable battery system or independent power supply can be provided as optional equipment.
7. An ozonization unit and/or a dilute-type, on-line injector chlorinator (gas injection optional) provide disinfection.
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