Specifications

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Micro-Irrigation

Chemical Injection

azzei

njectors

Mazzei injectors offer an economical highly efficient means of injecting

gases and liquids, such as chlorine, fertilizers, and other agricultural

chemicals into a pressurized water system. Mazzei injectors use differential

pressure to create a low-pressure zone which draws the chemicals into a

pressurized water line.

Operation:

Mazzei injectors are venturi-type injectors:

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).

Application:

• Agricultural irrigation systems using drip and/or sprinkler irrigation,

or any pressurized water system where a gas or liquid needs to be injected

Features and Benefits:

• Saves labor

• Safe to use as the chemicals are under vacuum, not pressure

• Ensures even distribution of chemicals

• No external power source is required in most systems

• Low maintenance - no moving parts

• Chemicals cannot be injected when the irrigation system is off

• Available in Polypropylene or PVDF (Kynar

) - Kynar is extremely

resistant to most chemicals, including acids

• Available with NPT or BSPT threads

Why PVDF (Kynar)?

Kynar is extremely resistant to most agricultural chemicals: Sulfuric acid,

Nitric acid, Chlorine, and Gypsum (Gypsum is very abrasive). Polypropylene

is not recommended for the above materials.

Summary of content (12 pages)

PAGE 1
Chemical Injection Micro-Irrigation Mazzei® Injectors Mazzei injectors offer an economical highly efficient means of injecting gases and liquids, such as chlorine, fertilizers, and other agricultural chemicals into a pressurized water system. Mazzei injectors use differential pressure to create a low-pressure zone which draws the chemicals into a pressurized water line.
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Required Information for Liquid Injection Applications The following information and calculations are required to determine the proper size and model of Mazzei injector for liquid fertilizer injection. Below is a worksheet. 1. Determine total water flow (gpm or lpm): ______ 2. Determine rate of injection required in (gph or l/min): ______ 3. Determine pressure differential across injector: a. System, or pump pressure at inlet to injector in (psi or Kg/cm2) ______ b.
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x x x x x x x BSPT Polypropylene Green x x x x x x x x x x x x x x x x x x x x BSPT PVDF Blue 283 287 384 384X 484 584C 484A 484X 584 684 878-02 885X-02 1078-02 1583A 1585X 1587 2081A 2083X 3090 4091 NPT Polypropylene Black Injector Model Numbers NPT PVDF Black Injector Product Range x x x x x x x x x x x x x x x x x x x x x x x x x x x x Injector Models and Kit Assemblies Injector Size In/Out MNPT or BSPT 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 3/4" 3/4" 3/4" 3/4" 1.0" 1.0" 1.0" 1.5" 1.5" 1.5" 2.0" 2.
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Typical Installations Bypass installation Injector installed around a point of restriction such as a regulator valve or gate valve which creates a differential pressure, thereby allowing the injector to produce a vacuum.
PAGE 5
Typical Installations Bypass with reduced pressure differental requirement. Chemical injection can be turned on or off with a controller. Booster pump installation Injector installed across the differential pressure created by an existing booster or supply pump in the system. It is plumbed from the discharge side to the intake side of the pump.
PAGE 6
Performance Table Injector Performance Table Water Suction Capacity • Injector Inlet Pressure 5-50 PSIG Operating Pressure PSIG Injector Inlet 5 10 15 20 25 30 35 40 45 50 Injector Outlet 0 1 2 3 4 0 2 5 7 8 0 5 7 10 12 0 5 10 12 15 0 5 10 15 20 0 5 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 30 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 40 Model 283 1/2" Threads Motive Water Flow Suction GPM GPH 0.17 3.2 2.0 1.1 (3.5) 0.24 (26.0) 0.43 (37.0) 0.65 0.70 (27.0) 0.75 (31.0) 6.0 6.
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Performance Table Injector Performance Table Water Suction Capacity • Injector Inlet Pressure 5-50 PSIG Operating Pressure PSIG Injector Inlet 5 10 15 20 25 30 35 40 45 50 Injector Outlet 0 1 2 3 4 0 2 5 7 8 0 5 7 10 12 0 5 10 12 15 0 5 10 15 20 0 5 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 30 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 40 Model 584 1/2" & 3/4" Threads Motive Water Flow Suction GPM GPH 2.1 (4.4) 3.0 (9.0) 3.6 (13.5) 4.2 (18.0) 4.7 (22.0) 5.1 (27.0) 5.5 (31.5) 5.
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Performance Table Injector Performance Table Water Suction Capacity • Injector Inlet Pressure 5-50 PSIG Operating Pressure PSIG Injector Inlet 5 10 15 20 25 30 35 40 45 50 Injector Outlet 0 1 2 3 4 0 2 5 7 8 0 5 7 10 12 0 5 10 12 15 0 5 10 15 20 0 5 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 30 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 40 Model 1585X 1.5" Threads Motive Water Flow Suction GPM GPH 10.7 123.5 74.8 26.3 (3.5) 15.2 (32.4) 46.8 50.0 (33.2) 326.0 324.1 318.1 287.2 210.
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Performance Table – metric Injector Performance Table Operating Pressure Kg/cm2 Injector Inlet 0.35 0.70 1.05 1.41 1.76 2.11 2.46 2.81 3.16 3.52 Injector Outlet 0.00 0.07 0.14 0.21 0.28 0.00 0.14 0.35 0.49 0.56 0.00 0.35 0.49 0.70 0.84 0.00 0.35 0.70 0.84 1.05 0.00 0.35 0.70 1.05 1.41 0.00 0.35 0.70 1.05 1.41 1.76 0.00 0.35 0.70 1.05 1.41 1.76 0.00 0.35 0.70 1.05 1.41 1.76 2.11 0.00 0.35 0.70 1.05 1.41 1.76 2.11 2.46 0.00 0.35 0.70 1.05 1.41 1.76 2.11 2.46 2.
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Performance Table – metric Injector Performance Table Operating Pressure Kg/cm2 Injector Inlet 0.35 0.70 1.05 1.41 1.76 2.11 2.46 2.81 3.16 3.52 Injector Outlet 0.00 0.07 0.14 0.21 0.28 0.00 0.14 0.35 0.49 0.56 0.00 0.35 0.49 0.70 0.84 0.00 0.35 0.70 0.84 1.05 0.00 0.35 0.70 1.05 1.41 0.00 0.35 0.70 1.05 1.41 1.76 0.00 0.35 0.70 1.05 1.41 1.76 0.00 0.35 0.70 1.05 1.41 1.76 2.11 0.00 0.35 0.70 1.05 1.41 1.76 2.11 2.46 0.00 0.35 0.70 1.05 1.41 1.76 2.11 2.46 2.
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Performance Table – metric Injector Performance Table Water Suction Capacity • Injector Inlet Pressure 0.35-3.52 Kg/cm2 Operating Pressure Kg/cm2 Injector Inlet 0.35 0.70 1.05 1.41 1.76 2.11 2.46 2.81 3.16 3.52 Injector Outlet 0.00 0.07 0.14 0.21 0.28 0.00 0.14 0.35 0.49 0.56 0.00 0.35 0.49 0.70 0.84 0.00 0.35 0.70 0.84 1.05 0.00 0.35 0.70 1.05 1.41 0.00 0.35 0.70 1.05 1.41 1.76 0.00 0.35 0.70 1.05 1.41 1.76 0.00 0.35 0.70 1.05 1.41 1.76 2.11 0.00 0.35 0.70 1.05 1.41 1.76 2.11 2.46 0.00 0.35 0.
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Emission Devices Micro VI PC Emitters Aqua-Traxx PC Irrigation Controllers Jr Max MC E Total Control 600 Series Valve Sentinel Valve Control Valves 700 Series Valve ©2012 The Toro Company Micro-Irrigation Business 1588 N. Marshall Avenue, El Cajon, CA 92020-1523, USA Tel: +1 (800) 333-8125 or +1 (619) 562-2950 Fax: +1 (800) 892-1822 or +1 (619) 258-9973 toro.