How a Mazzei Venturi Injector Works
When pressurised water enters the injector inlet, it is constricted toward the injection chamber and changes into a high-velocity jet stream. The increase in velocity through the injection chamber decreases absolute pressure, creating a vacuum that draws a liquid or gas additive through the suction port and mixes it thoroughly into the water stream. As the jet stream is diffused toward the injector outlet, its velocity is reduced and resumes its flow in a thoroughly mixed state with slightly lower energy than when it entered the injector.
Performance
Mazzei Venturi injectors operate over a wide range of pressures and require only a minimal pressure differential between the inlet and outlet sides to initiate a vacuum at the suction port. The injectors’ internal mixing vanes create thousands of microbubbles, significantly increasing the surface area of gas (air, oxygen, ozone, etc.) in contact with the liquid. Several microbubbles have a greater surface area than one large bubble of the same volume. Higher surface area facilitates greater solubility.
Features
- Body – Polypropylene for resistance to acids and other chemicals.
- Maximum working pressure 785kPa
- Minimum working pressure on pressurized systems must be 98kPa.
- When using on bypass pressure differential between the inlet and outlet must be at least 70kPa.
- Venturi should always be installed on level plain.
- These injectors should not be used from a town mains supply.
