New EW Series Electronic Dosing Pumps

Iwaki have recently introduced the EW series electronically controlled solenoid driven metering pumps. This series offers standard features such as pulse or manual flow control, stop via level control and pulse retransmit for slave driving of another pump or for use as an extra output. In addition:

- The EW series has been designed to cope with the often arduous operating conditions experienced in Australia. These include a highly weather resistant IP65 enclosure with one-piece control fascia, LCD stroke display to eliminate the need for a potentiometer, robust and well-sealed transparent control panel cover and IP68 weatherproof DIN plugs for external signal and stop cables. The solenoid drive unit is mounted separately in the main housing for additional weather and shock resistance.

- The pump head incorporates a high compression ratio and 180spm stroke rate for excellent self priming, especially on gassing liquids such as sodium hypochlorite. A built-in air vent valve is fitted as standard.

- Head materials are presently PVC and GFRPP with 316 s/steel and PVdF to be released shortly.

- Capacities range from 0.6 to 24.0 litres/hour with discharge pressures up to 10 bar.

- Tubular diaphragm and high viscosity models will be released shortly.

New MDM Series Magnetic Drive Pumps

The MDM series replace the previous MDF-M and larger MDF-L models, which have provide excellent service for more than 15 years. The MDM offers many significant new features including:

- Dry-run capability for up to 1 hour with carbon bearings using Iwaki's non-contact thrust system.

- Virgin materials in ETFE, PFA or PVdF for use with high purity chemicals.

- PFA for liquid temperatures up to 120°C, with ETFE & PVdF up to 100°C.

- 10 bar rated casing pressure is now standard for all models, with dual containment rear casing.

- High strength rare-earth magnets are now used for all models, allowing much smaller components and overall pump size with excellent performance / cost ratio.

- Silicon carbide or alumina ceramic wear parts are standard for a wide range of chemical applications.

- Back pull-out construction with flanged motors are used on all models for ease of maintenance.

- Modular construction with a wide range of impeller sizes allows an extremely large range of duties to be handled with maximum parts interchangeability.

- ANSI 150 suction / delivery flanges are standard.