The Xylem Flojet AD4/90 multi-chamber diaphragm positive displacement pump is designed for transfer, demand/delivery, filtration, high flow booster, carbonation, beverage dispense and continuous reverse osmosis applications. Its maximum flow rate is 3L/min. New multi-chamber technology with patented valve design overcomes vibration and hydraulic pulsation.

AD4/90 continues to running in closed valve conditions liquid being recirculated via an internal bypass valve. AD500 ceases to running in closed valve conditions as it is fitted with a pressure switch

The supply voltage rating is 230V
Input power is 55W
Maximum working pressure is 20bar
Maximum Fluid temperature is 77°C
Specific gravity is 30 maximum
Self-priming up to 2m head
Quiet and energy efficient
Alternative bypass pressures
Optional mounting orientation
Dry running without damage
Compatible with standard fittings
Corrosion and chemical resistant versions

IP44 rated