Liquid Chemical Feed Systems- Brochure

Series LFLiquid Chemical Feed SystemsSwitching from a gas system?Switching from a gas system couldn’t be easier. The existing booster pump and control set-up is kept in place. The operation principle is almost identical to gas feed systems. Please consult the factory for assistance in feed rate calculations.The Series LF Liquid Chemical Feeders are a family of fully vacuum operated, chemical solution feed systems, consisting of the following components: a Metering Assembly, Venturi Nozzle and Backflow Prevention Device.Hydro Instruments’ innovatively designed Liquid Feed Systems allow for easy metering and adjustment of dosage by simply moving the control valve to the desired position. Unlike metering pumps, this system provides a visual indication of chemical feed rate.AVAILABLEFOR FEED RATESUP TO10 GPM / 600 GPH INSTRUMENTS 600 Emlen Way, Telford, PA 18969 • Telephone: (215) 799-0980 • Fax: (215) 799-0984BULLETIN LF Rev. 6/10 Toll Free in the U.S.: 1 (888) 38-HYDRO • www.hydroinstruments.com • sales@hydroinstruments.comPROUDLYMADE IN USAOperationWater flow supplied to the venturi nozzle in the Hydro Ejector creates a vacuum which draws the chemical from the storage drum. Solution feed rate is visually monitored with a rotameter and controlled with a manual rate valve. Automatic control is available. Presence of vacuum is required to open the spring loaded, normally closed check valve in the Hydro Ejector. This prevents backflow of water into the storage drum. A secondary check valve is recommended for additional protection.Smart DesignHydro Instruments’ Liquid Feed Systems offer an all-vacuum design for the injec-tion of liquid Chlorine solutions and a vari-ety of other chemical solutions. Traditional metering pumps pressurize the chemical solution prior to injection, which presents the risk of a pressurized chemical leak. The Hydro LF Series draws the solution through the lines under vacuum; therefore breakage of the tubing or connections will not cause a chemical leak.DurabilityThe component parts of this equipment have been proven in the field for more than 25 years. Solid machined parts are precision made of only the highest quality and most chemical resistant materials for maximum durability and safety. The purely mechanical design and a minimal number of rugged, machined parts (and no moving parts during operation) guarantee simple operation, maximum durability and mini-mal maintenance.SimplicityFeed rate is clearly indicated on the rotameter tube and controlled by adjusting the manual, variable orifice rate valve. Unlike chemical feed pumps, this system operates over the full range from 5% to 100% capacity.Remote Meter with Rate Control Valve HYDRO INSTRUMENTS SERIES LF Chemical Storage Drum Weighted Strainer Assembly Booster Pump Vacuum Tubing Secondary Check Valve Hydro Ejector Main Remote Meter with Rate Control Valve HYDRO INSTRUMENTS SERIES LF Chemical Storage Drum Weighted Strainer Assembly Booster Pump Vacuum Tubing Secondary Check Valve Hydro Ejector Main Omni-Valve INSTRUMENTS 600 Emlen Way, Telford, PA 18969 • Telephone: (215) 799-0980 • Fax: (215) 799-0984BULLETIN LF Rev. 6/10 Toll Free in the U.S.: 1 (888) 38-HYDRO • www.hydroinstruments.com • sales@hydroinstruments.comPROUDLYMADE IN USA