ST-168 WITH COMPRESSED AIR
The R+M Suttner ST-168 chemical injector is designed for foam systems that use a separate compressed-air supply. Match the injector to the water flow, injector nozzle and downstream foam equipment, including a suitable lance without its own air intake.
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List of products
R+M Suttner ST-168 chemical injector with a compressed-air connection. A 9 mm hose tail for chemical suction. Chemical dosing is adjusted using 10 interchangeable metering...
R+M Suttner ST-168 chemical injector with an ST-161 metering valve and a separate compressed-air connection for foam applications. Features 9 mm hose connections for chemical...
Listing controls
Choose the ST-168 compressed-air injector for your system
The injector’s operating lever selects the cleaning or rinsing flow path. In the rinsing position, the bypass passages allow water to pass through the unit without routing the full flow through the injection section. Correct operation depends on the selected version and the connected equipment.
Water flow, dosing and downstream equipment
- Choose the injector nozzle size for the available water pressure and flow.
- Confirm whether the selected version uses dosing inserts or an adjustable ST-161 metering unit.
- Match the chemical suction connection, hose and check-valve arrangement.
- Provide the required compressed-air supply and a foam lance designed for air supplied at the injector.
Check the exact product listing for supplied components and operating limits. When replacing an injector, send the current model, nozzle size, water parameters and downstream gun and lance details.
Compare all chemical and foam injectors, including the ST-167 without compressed air. These two systems require different downstream arrangements and should not be treated as direct substitutes.
