Industrial Catalog
Hydraulic Accessories
Specialized components and accessories for hydraulic and fertigation systems.
Hydraulic Accessories
Hydraulic Accessories · Technical Overview
JOVAL stocks in Portugal fertiliser injectors in AISI 304 stainless steel (1.4301) rated to a maximum pressure of 6 bar, in 60 L and 100 L capacities. Fully stainless construction resists corrosion from the nitrate, phosphate and potassium salts used in agricultural fertigation, and allows the same vessel to be used for chlorine and other water treatment dosing. Each unit comes with inlet, outlet and bleed valves, a pressure gauge and a screw-in lid for opening and refilling.
In practice, a fertiliser injector is combined with a submersible borehole pump or a solar photovoltaic pump from the EOS range for off-grid solar irrigation installations. Sizing depends on the volume irrigated per cycle and the target fertiliser concentration — as a rule of thumb, 60 L covers small plots and greenhouses, 100 L covers medium holdings. Larger installations can run multiple units in parallel.
Frequently asked questions
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What is a fertiliser injector and how does it work on an irrigation line?
It is a sealed stainless-steel vessel connected to the irrigation network that mixes soluble fertiliser with water under pressure. A fraction of the main flow is diverted through the tank, picks up the dissolved fertiliser and returns it to the line, delivering nutrients to the plant root zone without an external metering pump.
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Why is the fertiliser injector made of stainless steel?
Because liquid and soluble fertilisers — nitrates, phosphates, sulphates and chlorides — are chemically aggressive and rapidly corrode carbon steel or plastic vessels. AISI 304 withstands the corrosion of these salts over many years of continuous operation.
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What capacity should I choose for my farm?
As a rule of thumb, 60 L covers small plots and greenhouses, and 100 L covers medium holdings. The exact sizing depends on the volume irrigated per cycle and the target fertiliser concentration. For larger installations, the injectors can be installed in parallel.
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Can it be used for water treatment beyond fertilisation?
Yes. Stainless construction allows dosing of disinfection products (hypochlorite, peroxide) and pH correctors in agricultural water treatment systems. The exact application should be verified on a case-by-case basis against the materials of the seals and connection fittings.
Can't find what you need?
Our technical team can help select the right equipment for your installation. Contact us with your project details — borehole depth, required flow rate and application.