Walchem Corporation is a leading manufacturer and supplier of on-line analytical instruments and electronic metering pumps. Walchem Pump Products include: solenoid metering pumps, direct-drive diaphragm pumps, mechanically actuated diaphragm metering pumps. Walchem offers analytical controllers for a wide variety of water treatment applications. To complete your system, Walchem provides high quality accessories for cooling tower, boiler, potable water and wastewater applications. The chemical feed and pump accessories include: Level switches to monitor tank levels, PosiFlow sensors to verify metering pump performance, Mounting brackets for metering pumps, Polyethylene storage tanks, Agitators, anti-syphon valves, back pressure valve, pressure relief valves, Paddlewheel/multi-jet inline flow meters for proportional chemical feed, calibration columns and solenoid valves for cooling tower and boiler applications. Walchem sensor line offers: WDS Differencial pH/ORP Sensors, WEL pH/ORP Electrodes, Electrodeless (Toroidal) Conductivity Sensors, Copper/Nickel Sensors, Disinfection Senors, Free Chlorine/Bromine, Chlorine Dioxide, Peracetic Acid and Ozone.