Unpowered Measured Irrigation Valve | measuredirrigation

Any irrigation system with a conventional irrigation controller can be upgraded to an unpowered system where each solenoid valve is replaced by an Unpowered Irrigation Valve. The conventional irrigation controller and the associated wiring become redundant.

The Unpowered Measured Irrigation Valve (UMIV) uses on-site weather conditions to control irrigation scheduling rather than the static timer intervals in conventional devices.

After irrigation and as water evaporates from the soil, water also evaporates from the valve’s bucket. The water in the bucket eventually reaches a low level corresponding to the soil drying out. The valve opens and irrigation begins. A dripper attached to the irrigation system refills the bucket while the irrigation system ‘refills’ the soil. When the water in the bucket reaches a high level corresponding to the required watering of the soil, the valve shuts off and the cycle restarts.

Once correctly calibrated, the UMIV only sends water when plants need it and does not overwater. It responds to the same local weather conditions as the soil. Deep or shallow watering, frequent or delayed watering – all can be accommodated. You don’t have to ‘turn it off’ over winter as rain and cooler temperatures keep the bucket from drying out. You can leave your irrigation system unattended for weeks on end.

The UMIV has a standard 25 mm inlet and outlet. The operating pressure range is 70 -1034 kPa. The maximum flow rate is 6800 L/H.

A 40 mm and 50 mm version of the UMIV is also available. This means that any drip or sprinkler irrigation application can be installed without using solenoid valves and without using a conventional irrigation controller. By using UMIV’s, the irrigation control is completely unpowered.

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Taxonomy

• Drip Irrigation
• Water Efficiency
• Irrigation