Liquid Feed Overview
Liquid Chemical Feed Systems & Solutions
USFilter's Wallace & Tiernan Products continues to be the leader in disinfection and chemical feed systems for potable water, wastewater and industrial process applications. When it comes to the use of liquid chemicals for virtually any application, USFilter has the widest variety of liquid feed technology available from any single manufacturer
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Encore® 100 Diaphragm Metering Pumps
This new class of metering pumps combines the robustness of hydraulic diaphragm drives with the simplicity and serviceability of mechanical diaphragm ends. Handles capacities up to 48 gph and backpressure to 150 psi. Available with standard induction and variable-speed motors. Double-simplex capability. Premium composite diaphragm, Teflon® facing and nylon reinforcement bonded to a pre-formed elastomeric support Precision-guided ball-and-seat clear PVC cartridge valves Optional electro-optic diaphragm leak-detection system
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Encore® 700 Diaphragm Metering Pumps
A rugged, heavy-duty mechanical diaphragm metering pump available with six diaphragm sizes and double simplex capability to handle capacities up to 634 gph and backpressure to 175 psi.
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CHEM-AD® Metering Pumps
A new class of mechanically actuated diaphragm metering pumps with built-in microprocessor based speed controls. Available in manual or fully automatic version with various input options of 0/4-20mA, Pulse controls, batching, remote on/off, multiplication/division, tank level pre-warning, tank empty signals, with fault / stroke outputs. Integral degassing options on low capacity models Capacities range from 0.06 to 238 GPH & pressures up to 120 PSI Turndown capabilities 100:1 with microprocessor controls Corrosion resistant plastic enclosure with metal inserts & lining Long lasting Teflon faced composite diaphragms & high precision double ball valve arrangements with degassing options on low capacities.
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PREMIA® 75 Solenoid Metering Pumps
A six-model line of solenoid pumps, available from single-mode control to microprocessor control, with capacities to 21 gph and backpressures to 300 psi.
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Chemtube® 2000 Metering Pumps
A high-capacity, hydraulic tubular diaphragm metering pump with capacities up to 528 gph and backpressures to 200 psi. A double-simplex configuration is available to provide higher capacity.
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Chemtube® 200 Metering Pumps
This low- to medium-capacity, tubular hydraulic diaphragm-metering pump has capacities up to 60 gph and backpressures to 390 psi. A second independently controlled pump head can be added to the gearbox to double capacity or meter a second chemical.
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CHEMTUBE® PPS
The Wallace & Tiernan Products Chemtube PPS is a positive displacement peristaltic pump system designed for han-dling a wide range of chemicals and fluids from sodium hypochlorite to heavy slurries to sludge.
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Skid Packages
Chemical Metering Pump skid is designed to meet the needs of virtually any industrial or municipal liquid chemical feed application. It is a completely assembled system, offering the features and flexibility required for accurate chemical metering with the benefit of easy installation, start-up, operation, and maintenance. Factory tested, economical to install, the feed system is laid out on an easily accessible and opened frame design. It takes up less than five square feet of floor space. A variety of pump controls are available, such as Manual or remote manual control with start stop control, Flow proportional control, Residual compound loop control. For feed rate control via stroking speed, SCR or VFD drive is provided to vary the speed of the motor. Stroke frequency is regulated manually by a panel-mounted potentiometer, or automatically via a 4-20 mA process variable input signal. A standard NEMA 4X control panel is provided for variable speed control of the metering pump including several standard features necessary for automatic feed controls
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Control Panels VFD & SCR
Metering Pump Control Panel is specifically engineered and designed for control of Encore and Chemtube metering pumps. The panel utilizes a variable speed controller, which controls the speed of the pump's motor, and uses state-of-the-art technology. The enclosure is NEMA 4X with a continuous-hinged, gasketed door. It includes indication of pump status via pilot lights and a digital motor speed indicator, as well as normally closed contact for remote indication of pump run or failure. A standard disconnect switch is provided. It has the capability of local or remote control with the use of a built-in Hand-Off-Auto switch. A 4-20mA output signal is provided for as standard.
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Series 47-050 Saturator
This is an up-flow type saturator designed to provide up to 840 gph of a saturated 4% solution of sodium fluoride or a 1% solution of potassium permanganate automatically.
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LVN-2000
The LVN 2000 liquid chemical feed system can handle the majority of chemicals used in the water or wastewater processes. It is ideal for solutions of sodium hypochlorite that have a tendency to out-gas, resulting in loss of feed with conventional metering pumps. The LVN 2000 uses a vacuum source such as an injector to draw chemical from the supply tank to the point of application. Utilizing the Wallace&Tiernan V-Notch control valve, reliable feedrates can be maintained with either manual or automatic control schemes. a flow meter provides accurate indication of feed rate.
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Liquid Chemical-Feed Accessories
Wallace & Tiernan relief valves protect metering pumps from damage due to excessive pressure in a system. This could be caused by an accidental or valve closure. Mounts directly in the line Built-in reprime valve Convenient to install
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