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
1/2″	1/2″	$170
3/4″	1/2″	$190
1″	1/2″	$210
1″	3/4″	$235
1-1/2″	3/4″	$275
1-1/2″	1″	$345
2″	1-1/2″	$420
2”	2”	$800
3”	2”	$1085

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	Unit Price	Suction Price
283	1/2” (Low Flow)	.17-.54 GPM	$62	$55
287	1/2”	.3-1 GPM	$62	$55
484	1/2” (High Flow)	1.2-4.1 GPM	$62	$55
584	3/4”	2.1-7.8 GPM	$89	$55
878-03	1”	3.6-13.3 GPM	$147	$65
1078-03	1” (High Flow)	5.5-20.5 GPM	$147	$65
1583	1-1/2”	10.7-40.1 GPM	$184	$65
2081	2”	32.4-121 GPM	$583	$45
3090	3”	76.4-265 GPM	Call	$45