Venturi Fertilizer Injector with Suction Control Valve

An injector with intake adjustment

This Venturi fertilizer injector combines the water-flow body with a manual valve at the suction connection. Water passing through the injector creates suction when the available pressure difference is sufficient. The intake valve allows the operator to adjust or close the prepared fertilizer solution entering that connection.

Choose the assembly for your feeding branch

The pictured arrangement contains an injector body and suction-side control valve. Check the supplied configuration against the branch you intend to build. Confirm whether suction tubing, a strainer, additional fittings or mainline bypass plumbing are required separately. These components must be matched to the irrigation layout and the fertilizer supply container.

Keep pressure and intake control distinct

The valve on the intake controls the solution path. Water flow and the pressure difference across the injector still determine whether suction occurs. Select the exact injector using its operating information and the inlet and outlet conditions of the installation. Account for pressure losses while retaining enough pressure for the downstream irrigation equipment.

Fit and commission the assembly

Confirm water-port size, thread type, suction connection and installation direction before connecting the injector. Provide compatible seals and support for the pipework. Establish normal irrigation flow, then open the intake gradually and measure solution consumption. Verify the feeding rate with the actual fertilizer mixture and the intended watering zone.

Operate and clean between feeding cycles

Prepare a soluble fertilizer mixture compatible with the injector and downstream equipment. Close the intake after feeding and carry out the system flushing procedure. Depressurize before servicing the injector or valve. Check the intake path for deposits and confirm the system includes the filtration and backflow protection required for its water supply.