Makro/ 5 Diaphragm Metering pump

Areas of application

• The addition of chemicals based on measured values, e.g. acid and alkali dosing for pH neutralisation in wastewater treatment
• Dosing of treatment agents in industrial production technology
• Time-controlled dosing of chemicals for ion exchange regeneration

Features

• The drive unit is designed for operating two liquid ends with an output of 2 x 4,000 l/h
• Can be increased to 20,000 l/h by adding up to three add-on pumps, and with reduced back pressure up to four add-on pumps (the use of an installation frame is necessary).
• Back pressure 4 bar
• Push-pull operation of the liquid ends with dual head designs
• Standard drive: Spur gear motor 3 kW (optional 5.5 KW), 230/400 V, 50/60 Hz, enclosure class rated IP 55 (optional ATEX-T3/T4), insulation class F
• Stroke displacement 0-20 mm
• Stroke length setting: manual (optional with variable speed drive)
• Optional electronic frequency converter for speed control, enclosure class rated IP54, with monitor for monitoring the temperature of the motor
• Optional stroke sensor with NAMUR signal for exact recording of each dosing stroke, suitable for batch dosing or proportional dosing
• Gear housing: Cast iron, resistant to seawater, acrylic resin lacquer finish
• Liquid end materials: Polypropylene, PVC, PTFE with carbon, stainless steel 1.4571/1/4404
• Reproducibility of dosing better under defined conditions and correct installation ± 2 % (stroke length 30-100%)
• Suction lift varies with density and viscosity of the medium as well as the connecting tubing and the number of strokes

Technical Data for the Main Pump

Materials in touch with medium at liquid end version

* The valve spring is coated with CTFE (similar to PTFE)

Other types available on request