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Intended use
▪ The bypass injector is designed for admixture of detergents to water and for straightforward rinsing with water.
▪ Only Pressure Equipment Directive (PED) Group 2 liquids may be used as media. In case of doubt contact the
equipment manufacturer.
▪ The unit may only be used with a suitable pressure generator.
▪ The unit is not designed for use with persons (children included) with restricted sensory and mental capabilities
due to lack of experience and/or lack of knowledge unless they are supervised by a person responsible for their
safety or if they have received instruction from that person in use of the equipment.
▪ In general children are forbidden to use this equipment.
Connection lines used and the ST-164 injector unit itself must be flushed clear for 20 seconds prior to any change
of
detergent. In the case of very powerful detergents please contact the manufacturer who can then assess wither
operation with this unit is possible. Any form of operation of the ST-164 injector unit over and above is deemed
impermissible.
Qualified personnel
The bypass injector may only be installed by qualified personnel able to operate the bypass injector
properly.
Qualified personnel are persons familiar with installation, commissioning and decommissioning, operation,
maintenance and repair and who hold a qualification appropriate to their work.
Mode of operation
The selector lever switches between two modes of operation:
injector mode and rinse mode.
For "injector" mode turn the selector lever to the "injector" position. Note: always turn the lever to the end stop in
order to
ensure correct operation. In the injector mode the detergent/foaming agent intake and dosage is via the injector.
Dosage is via dosage nozzles or alternatively via the ST-161 dosage valve. Depending on use the chemical/water
mixture can be sprayed or foamed via a suitable lance. For foaming with the MS Greenline mini a foam lance with
an air injector (ST-72, ST-74 and ST-75) is used or alternatively with the ST-168 air can be fed via the additional
compressed air connector provided in order to foam the detergent.
Troubleshooting
MS Greenline mini
Injector does not suck in foaming agent or detergent from the container or no foam is generated:
▪ Dosage nozzle blocked - clear nozzle with thin wire as necessary. If strongly scaled select new dosage nozzle.
▪ Selector lever in wrong position
▪ No dosage nozzle in foaming agent intake hose
▪ Intake hose damaged
▪ Intake hose not immersed in foaming agent
▪ Wrong lance – MS Greenline mini needs a foam lance with air injector
ST-168
Injector does not suck in foaming agent or detergent from the container or no foam is generated:
▪ Dosage nozzle blocked - clear nozzle with thin wire as necessary. If strongly scaled select new dosage nozzle.
▪ Selector lever in wrong position
▪ No dosage nozzle in foaming agent intake hose
▪ Intake hose damaged
▪ Intake hose not immersed in foaming agent
▪ Wrong spraygun – ST-168 needs a foam gun with large cross-sections.
▪ Air connection not correct or not connected in the first place
▪ Compressed air line shut-off valve closed
▪ Recommended is connection of a pressure reducer in the compressed air line (2 – 6 bar)
