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Mazzei Fertilizer Injector

The Mazzei injector is a basic venturi style injector, facilitated by back pressure to create suction. It requires no moving parts, but rather harnesses a simple law of physics and water hydraulics. Ideal for orchard situations where concentration precision is not necessary, its best application is when fertilizer is measured based on volume/weight per acre.

We usually mount these in a bypass manifold inserted directly into the mainline of the system, so when fertigation is desired its a simple flip of some valves and water is rerouted through injector.

Mainline Size Unit Size Bypass Assembly Unit + Suction Only
1/2″ 1/2″ $145 $90
3/4″ 1/2″ $145 $90
1″ 1/2″ $170 $90
1″ 3/4″ $230 $105
1-1/2″ 3/4″ $240 $105
1-1/2″ 1″ $315 $202
2″ 1-1/2″ $325 $225
2” 2” $368 $265
3” 2” $525 $265

Description

Mazzei is a basic venturi style fertilizer injector, using Bernoulli’s principal to increase velocity to create a negative pressure zone creating suction.

  • Requires a bypass manifold to work.
  • Bypass is designed so the lower half is the same size as your diameter of pipe, preventing bottlenecking.
  • Mazzei unit is chosen based on the flow rate in your mainline, see chart below.
  • We offer both a pre-built bypass or just the units.
Model Unit Size Flow rate
283 1/2” (Low Flow) .17-.54 GPM
287 1/2” .3-1 GPM
484 1/2” (High Flow) 1.2-4.1 GPM
584 3/4” 2.1-7.8 GPM
878-03 1” 3.6-13.3 GPM
1078-03 1” (High Flow) 5.5-20.5 GPM
1583 1-1/2” 10.7-40.1 GPM
2081 2” 32.4-121 GPM
3090 3” 76.4-265 GPM

 

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