A flow of water, even in small quantities, drives the drive piston, which in turn drives the metering piston. The metering piston takes in the care product and pumps it into the water in the line. The injected product is always dosed in proportion to the volume of water regardless of fluctuations in throughput or pressure. This system prevents materials being wasted as is often caused by manual pre-mixing.

- Maximum operating temperature: 40°C
- Suction hose length: 120 cm
- Dimensions: Diameter 11 x H 49 cm
- Including wall mounting -
Dosage adjustable from the outside
- Solution injected at the outlet
- Self-priming effect up to 4 m
- Connection: 3/4", BSP-NPT diameter 19 mm
- Water flow rate: 10 l/h to 3000 l/h
- Pressure: 0.30 bar to 6 bar
- Dosage: 0.2% to 2%
- Ratio: 1:500–1:50
- Intended purpose: For dosing chemicals

- Place of use: Wash tunnels, truck prewashing

Other models, such as D3RE25IE (5–25%), and alternative options, such as specific seals etc., available on request