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For best results with Absolute Ozone generators we recommend using AirSep® Oxygen concentrators.   AirSep® offers completely self-contained oxygen generators. Equipped with air compressors, these generators require no special installation. Simply connect the oxygen outlet to your oxygen distribution system and the power cord to a grounded electrical outlet. Turn the unit on and set your oxygen delivery pressure.

Mazzei® Injectors

Mazzei® venturis offer an efficient and reliable way to inject virtually any liquid or gas into water. Widely used for the injection of ozone. When installed properly, injectors can transfer ozone into water with efficiencies as high as 99 percent. These venturi injectors are made of PVDF Kynar® and are ozone compatible. All venturis include a 1/4" barbed ozone safe check valve. Maximum operating pressure is 400 psi.


Part No Name
VM384 Mazzei Venturi Injectors, 1/2" MNPT, 1 gpm, <1 chf
VM978 Mazzei Venturi Injectors, 1" MNPT, 7 gpm, 13 cfh
VM1584 Mazzei Venturi Injectors, 1-1/2" MNPT, 31 gpm, 90 cfh
VM514 Mazzei Venturi Injectors, 2" MNPT


Performance Tables – Click the Model number for a spec sheet.
Model Flow Range (lit/min) Flow Range (Lit/Hr) Flow @ 3.5 Bar
Thread Size
1.1 to 5.25
66 to 315
384.pdf 2.5 to 12.6 150 to 756 7.60 1/2"
484.pdf 3.2 to 23.5 192 to 1410 12.3
584.pdf 10.6 to 39.7 636 to 2382 22.8 3/4"
684.pdf 1 5.1 to 57.2 906 to 3432 38.6 3/4"
784.pdf 16.3 to 80.0 978 to 4800 51.6 3/4"
978.pdf 17.0 to 87.1 1020 to 5226 49.2 1"
1078.pdf 30.3 to 106.7 1818 to 6402 62.1 1"
1583.pdf 53.8 to 213 3228 to 12,780 123 11/2"
1584.pdf 74.9 to 367 4494 to 22,020 217 11/2"
2081.pdf 184 to 598 11,040 to 35,880 375 2"
3090.pdf 289 to 1238 17,340 to 74,280 876 3"
4091.pdf 497 to 1722 29,829 to 103,320 1572 4"

Thread Size


Guide To Install Mazzei Injectors

Injector Assemblies

These pre-assembled venturi injector assemblies are designed for ozone injection applications. They are compatible with both pressurized and nonpressurized ozone generators and use the flow of your water pump to create suction. The bypass design of the assembly provides flow control through the injector. Assemblies are made of Schedule 40 PVC and feature an ozone-resistant Mazzei venturi injector. Female slip inlet/outlets.


Part No



Injector Assemblies, 1 1/2" w/VM978


Injector Assemblies, 2" w/VM1584


Injector Assemblies, 2" w/VM978

*An unprotected or inadequately ventilated environment or improper control power may cause damage to the oxygen concentrator not covered under warranty.

How a Mazzei® Injector Works?

When pressurized 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 results in a decrease in pressure, thereby enabling an additive material to be drawn through the suction port and entrained into the water stream. As the jet stream is diffused toward the injector outlet, its velocity is reduced and it is reconverted into pressure energy (but at a pressure lower than injector inlet pressure).
Mazzei® Injectors are extremely efficient. They 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.

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