Robert Marvel
     Plastic Mulch  

Phone 717-838-0976
Toll free 1-800-478-2214


               Your source for all your plastic mulch and drip irrigation needs!

"Not only do we sell these fine products we also use them. We are farmers too! We know these products perform!"

Fertilizer Injectors
 

Venturi Fertilizer Injectors
 

APPLICATION OF CHEMICALS BY MICRO-IRRIGATION
Benefits of this technology  
  • Delivers Plant nutrients directly into the wetted zone
    (where root development is intensive)
  • Uniform application of fertilizers
  • Higher crop yields due to precise application of fertilizer
  • Labor machinery and fuel savings.
  • Reduce soil compaction less equipment runs in the field
  • Reduce crop damage less equipment runs in the field
  • Can be used with a large variety of chemicals
Venturi devices. Simple and low cost systems. They do not require an external power source; but they generate a significant head loss which tends to limit their use to small to medium irrigation systems.

Some Definitions A venturi is a device which creates a vacuum when fluid flows through it. The fluid which creates the vacuum is know as the motive fluid. The motive fluid for irrigation injectors is the irrigation water itself. Vacuum created by the venturi sucks fertilizer or chemical into motive water

How to work a Venturi Our Venturi are water driven, ie they are driven by the pressure of the main irrigation pipeline. The energy to run these devices reduces the irrigation water pressure of the water line.

What to inject with a Venturi Liquid fertilizers (Nitrogen, Potassium, Phosphorus, ect...) Pesticide injection, acid injection, for example to unblock dripper or distribution orifices.


 

Venturi Injectors Prices

Minimum flow rate must be EXCEEDED to function
Size FPT Max Injection Flow Rate Price
1.5” 316 GPH 17-51 GPM $35.00
2” 696 GPH 46-130 GPM $45.00


 

Mazzei Fertilizer Injectors
 
Mazzei’s are a venturi type injector which are very simple to operate. A pressure difference between the inlet and outlet of the injector creates a vacuum inside the body which results in suction. The suction can then be used to inject fertilizer into your drip irrigation system. These injectors are a very inexpensive and reliable way to deliver fertilizer to your crops. Easy installation. Mazzei’s are recommended for consistent flow rates.


INJECTOR COMES WITH CHECK VALVE, GATE VALVE & FLOW METER

 
 

Mazzei Injector Prices

Minimum flow rate must be EXCEEDED to function
SIZE MAX INJECTION RATE FLOW RATE PRICE
3/4" MODEL 384 10 GPH      2-8 GPM $110.00
1" MODEL 484 18 GPH    3-12 GPM $141.00
1.5" MODEL 584 30 GPH    9-50 GPM $175.00
2" MODEL 584 30 GPH    9-80 GPM $195
3" MODEL 1078 75 GPH 16-180 GPM $345

 

 

© Robert Marvel Plastic Mulch LLC, 2002 - Present All rights reserved


Website design and hosting by Harrisburg Websites  E-Net