De Nora Water Technologies developed the all-vacuum gas feeders which have become the worldwide standard. Model 480 gas chlorinators are designed for manual or semi-automatic gas regulation.
Easy to install, for indoor or outdoor installation, each Model 480 chlorinator is factory tested and needs no field adjustment prior to start-up. Five different fl owmeter capacities provide versatility in meeting gas fl ow requirements. Chlorinators mount directly on the gas valve of a cylinder utilizing a lead gasketed positive yoke clamp. Diaphragm ejectors are standard with a choice of diffuser outlets. As an option, a variety of different ejectors are available to meet your application needs.
A Model 480 chlorinator consists of a vacuum regulator, ejector or chemical induction unit and vacuum and vent tubing to make a complete system. If multiple feed points are required, remote meter panels and additional ejectors
are provided. A switchover module is offered to provide for uninterrupted service.
♦ Safe and reliable all-vacuum operation
♦ Worldwide standard for chlorinator technology
♦ Superior materials of construction for wet or
dry gas service
♦ Safe integral venting system
♦ Five capacities up to 100 PPD (2 kg/h)
♦ Solid silver rate and inlet valves
♦ Direct cylinder mounted
♦ Replaceable inlet capsule
♦ Remote metering available
♦ Optional switchover capability with automatic reset for uninterrupted service
Chemical Induction Units
De Nora Water Technologies CHLORA-VAC® Series 1420 chemical
induction units offer improved chlorination and dechlorination through the high-effi ciency mixing of gaseous chemical with process water. This translates into operating and chemical cost savings. CHLOR-A-VAC® units produce a vacuum when process water passes through water inlet ports and through a venturi. The high vacuum and recessed impeller create great turbulence and complete chemical
mixing.
A chemical induction unit in lieu of an ejector should be considered for the following applications: contact basins, headwater, return sludge processes, clarifi er inlets, collection basins, equalization tanks and clear
wells. (Refer to Bulletin 130.0001)
Design Features
♦ Sonic Flow: Gas flows at sonic velocity maintaining constant gas fl ow; additional pressure regulation is not required.
♦ Automatic Switchover: A separate, independent device that does not require manual reset. Flow indication is available at both vacuum regulators. Each vacuum regulator has a separate independent vent and an integral pressure relief device.
♦ Reliable: Over 35 years of experience with all vacuum operation, loss of chlorine supply indicator, integral venting system, doublethickness main regulating diaphragm, integral gas flow indicator.
♦ Ease of maintenance: Simplicity of design and modularized components; such as the replaceable inlet capsule for minimized maintenance.
♦ Superior materials of construction: Solid silver rate valve, corrosion resistant yoke assembly, tantalum springs.
Applications
For process water, waste treatment and water treatment in the municipal or industrial marketplace:
♦ Potable water disinfection, well water, surface water plants
♦ Slime and algae control: irrigation systems, cooling towers, rechlorination points, remote systems
♦ Wastewater disinfection: packaged plants, lagoons, industrial effl uents
♦ Process water: chemical and pharmaceutical manufacture, food (washdown, canning, bleaching, taste and odor control)
♦ Cyanide, chromium removal: metal finishing wastes
♦ Recreation water: swimming pools, fountains, spray ponds
