Product Overview

The ST-168 Bypass Injector is a premium stainless-steel chemical injector equipped with a compressed air module and metering valve for precise foam generation and chemical dosing. Engineered for professional cleaning systems, the ST-168 delivers exceptional foam quality without requiring a separate air-intake foam lance.

Highly popular within the food washdown and agricultural cleaning industries, this injector can remain permanently installed in the high-pressure line without affecting cleaning performance. Its bypass design ensures full water flow during rinsing, while air and chemical injection can be activated instantly for foaming.

Field of Application

• Food washdown cleaning systems – hygienic cleaning of production areas, walls, and equipment

• Agricultural facilities – piggery, poultry, and cattle housing sanitation

• Vehicle and equipment cleaning – including food transport and refrigerated vehicles

• Ideal for use with DN12 food-grade hoses such as Blufood or Hygiene Ultra

Key Features

✅ Injector Size: 1.3mm – precise chemical dosing and efficient foam generation
✅ Construction: 100% stainless steel – durable, corrosion-resistant, and hygienic
✅ Bypass Function: Dual 50 mm² openings allow unrestricted rinsing flow with no pressure loss
✅ Operating Pressure: From 5 bar up to 350 bar (low to medium pressure systems)
✅ Compressed Air Module: Feeds air directly into the injector for instant foam production – no air-intake lance required
✅ Metering Valve: Adjustable for accurate detergent control
✅ Chemical Suction Hose Connector: 9 mm diameter for high-viscosity detergents
✅ Integrated Check Valve: Prevents backflow and maintains consistent chemical draw
✅ Flow Direction Marked: For simple and secure installation
✅ Recommended Accessories: ST-2720, ST-2725, ST-3100, or ST-3225 spray guns with suitable lances and DN12 Blufood or Hygiene Ultra hoses

Why Choose This Product?

The ST-168 Bypass Injector is trusted throughout the food and hygiene industries for its ability to produce dense, consistent foam without compromising rinse performance. Its stainless-steel body ensures long-term reliability even in harsh chemical environments. Designed for permanent installation and easy operation, it’s the perfect choice for professionals who need a durable, low-maintenance injector for both foaming and rinsing modes.