Description
The dosing pumps of the G™ Series are electric motor-driven pumps with mechanical diaphragm liquid ends. Simple, economical and rugged, they offer great flexibility and a wide selection of liquid ends compatible with most chemicals. With a corrosion-resistant plastic or aluminium housing, depending on the model, they are based on two technologies previously only used for intensive-use industrial pumps: variable eccentric drive and stroke adjustment.
The G series is made up of three dosing pump models, covering a very wide flow range (up to 1,200 l/h) at an excellent quality-price ratio.
GM: Most robust configuration
The GM series has the most robust and versatile configuration in the G series.
TECHNICAL SPECIFICATIONS
- Flow rate up to 500 l/h
- Pressure up to 12 bar
- Mechanically actuated PTFE diaphragm
- Stroke adjustment by variable eccentric minimising pulsation and shock
- Maximum temperature of pumped liquid: 40 °C
- Adjustment of flow rate while running or stopped: from 0 to 100%
- Stroke adjustment lock
- Accuracy: ± 2% of rated flow from 10 to 100% stroke
- Suction lift: up to 4 m water
- High vacuum suction lift option: 9 m water (consult us)
- Maximum suction pressure: 2 bar
- Aluminium alloy housing
- Life lubrication
- Options: double diaphragm, VARIPULSE® controller for automatic adjustment and control of flow rate, stroke counter, electronic servomotor
- Homogeneous or heterogeneous multiplexing capabilities
- Integrable into an EH&S protection enclosure
APPLICATIONS
- Municipal and industrial water treatment: Coagulation/flocculation (injection of ferric chloride, aluminium sulphate, WAC, etc.), slurry treatment (injection of polymers), activated carbon preparation (damping with sulphuric acid), pH regulation (injection of acids and alkalis), etc.
- Air treatment: Scrubber tower (injection of sodium hydroxide, sulphuric acid, bleach)
- Surface treatment: Pickling (injection of hydrochloric, sulphuric, nitric, phosphoric or hydrofluoric acid), Neutralisation (injection of acids or alkalis), waste treatment (injection of sodium bisulphite, bleach, sodium hydroxide, etc.)
- pH adjustment: Injection of sodium hydroxide and acids
- Desalination: Cleaning and maintenance of reverse osmosis membranes (injection of hydrochloric acid, sodium hydroxide, anti-scaling agents and anti-fouling agents)
- Agriculture: Fertiliser injection (pivots)
- Food industry: Cleaning in place (injection of sodium hydroxide and nitric acid)
- Distillery: Cleaning in place (Injection of soda lye)
