Amiad Fertiliser Injector 4-02 Gravity Type For Auto Operation Includes 4-05 NC Valve.

Gravity feed type injector, suction head is connected to a bottom of an elevated chemicals tank. Manual cut-out. Injector control: By a built-in normally closed hydraulic valve, to be controlled remotely.

The Amiad 4-02 Fertiliser Injector is a gravity-feed hydraulic dosing system designed for efficient and reliable fertigation. Powered by the hydraulic pressure of the irrigation system, it requires no external power supply and delivers an adjustable injection rate of 10–320 LPH.

This model is fitted with a hydraulic “normally closed” cut-out valve, which automatically stops operation when irrigation flow is interrupted or when the system shuts down. It is designed for use with large fertiliser tanks that include a bottom outlet, making it ideal for growers with high-volume fertigation needs.

Built from high-grade engineering plastics with Viton and Nitrile seals, the 4-02 is resistant to nearly all agricultural and horticultural chemicals including fertilisers, acids, herbicides, fungicides, insecticides, and trace elements. A built-in air-release valve ensures smooth start-up and operation.

APPLICATIONS

• Fertiliser injection in drip, micro-sprinkler, and sprinkler irrigation
• Acids for dripline descaling and cleaning
• Nutrient solutions, trace elements, and soil additives
• Chemical dosing in water treatment and industrial processes

FEATURES

• Hydraulic, water-driven injector — no power required
• Gravity-feed system for large fertiliser tanks with bottom outlet
• Adjustable injection flow: 10–320 LPH (2.4–70 US gph)
• Operates with irrigation line pressures of 0.5–8 bar
• Automatic cut-out with NC hydraulic valve for safe operation
• Chemical resistant to most agricultural solutions
• Easy installation, lightweight and portable design
• Optional flow regulators available for precise dosing
  

SPECIFICATIONS

• Model: 4-02 Gravity Feed Fertiliser Injector
• Injection Rate: 10–320 LPH (2.4–70 US gph)
• Operating Pressure Range: 0.5–8 bar (7–112 psi)
• Water Consumption: ~3× the injected chemical volume
• Cut-Out System: Hydraulic NC valve (automatically stops when irrigation flow ceases)
• Drive Source: Hydraulic pressure from irrigation line
• Tank Requirement: Fertiliser tank with bottom outlet
• Construction Materials: High-grade engineering plastics
• Seals: Viton, Nitrile, Polyurethane

CHEMICAL INJECTION RATE FORMULA

• Metric Count the number of pulses in 30 seconds and multiply by 4. This will
  give the rate of injection liters/hour.
  Ex: 42 pulses in 30 seconds x 4 = 168 liters/hr