The S.S. Fixed Chemical Injector M-M Connector is a key accessory in high-pressure cleaners and is widely used in various cleaning and disinfection operations. In combination with a high-pressure water flow, the syringe can accurately suck in detergents, chemical liquids or disinfectants and mix them with the water flow to form an efficient cleaning mixture to enhance decontamination capabilities or perform disinfection operations. The syringe is usually installed at the outlet end of the pump and is designed with a small-aperture nozzle inside. When the device is connected to a chemical nozzle with a larger aperture, the difference in aperture between the two will produce a pressure difference, which will trigger the siphon effect, open the one-way valve of the syringe, smoothly suck the required liquid into the system, and ensure that it is fully mixed with the water flow, and finally evenly spray out the detergent or disinfectant. This design allows the syringe to maintain a stable suction volume without manual adjustment, ensuring the balance and consistency of the cleaning effect.