Glossary

GLOSSARY FOR THE AUTOMATIC IRRIGATION SYSTEM

A B C D E F G H I J K L M N O P R S T U V X Y Z

  • – an electronic control unit to ensure the automatic operation of the irrigation system. According to the water demand of the plants, it opens and closes the magnet valves to provide the adequate water supply of the system. It has several types depending on the user’s purposes and the number of irrigated areas. It is available in interior and exterior design.
  • Flow through water – the water flowing through the irrigation system (pipe, sprinkler etc.) during a certain period of time. It is measured with l/min or m3/h.
  • Drip irrigation pipe – an LDPE pipe, which provides the water supply of perennial plants and bushes. The water comes through the built-in drip irrigation and only irrigates the roots. In decorative gardens the most frequent pipes’ diameter is 16 and 20 mm.
  • Drip irrigation – an element built in the drip irrigation pipe that provides holes on every 33 cm for the irrigation water. The water flow is usually 2, 4 or 8 l/h. It is available in basic design and with press control.
  • – An automatic element, which closes for pressure, and opens in normal state. It is designed to let the water flow down after the irrigation program (into the gravel drainage if professionally installed).
  • – One of the principles in garden irrigation is to install the sprinklers according to water pressure. The even distribution of water can be provided.
  • – Part of the pipe, which connects the water source with the magnet valves. Usually it is under constant pressure, unless the relay switches on the pump or a magnet valve is installed.
  • Ball valvea closing piece, in which a drilled ball can be spun with a lever. The valve closes or opens according to the ball’s position.
  • – a possible accessory of the pumps. It can store up to 100 liters. It is recommended to use 24-50 liter tanks in backyards. Its main purpose is to supply small amount of water without pumps, reducing the number of starts. Usually equipped with pushbutton switch.
  • Quick-release screw ringafter installation it provides flexibility without changing the pipe’s length due to a gasket. It is recommended to use in fix pipelines to provide easy later maintenance or repair of certain parts.
  • – see also Drain
  • Compressor – helps to drain the irrigation system. The high-pressured (4-6 bar) air produced by the compressor can drain the whole system by connecting it to the drain tap. Only this method guarantees 100 % success.
  • Circle – see also Zone
  • HDPE pipe – High-density polyethylene pipe with 6 or 10 bar pressure. Can be used in main and lateral lines as well. General sizes: 25 mm (3/4”), 32 mm (1”), 40 mm (1 1/4”), 50 mm (1 1/2”), 63 mm (2”) … Can be installed with quick connectors.
  • – a special check valve. Used at surface pumps. Installed to the end of the induction pipe to avoid leaking from the pipe, therefore providing a quick start.
  • LDPE pipe – Low-density polyethylene pipe, usually with 16, 20 or 25 mm diameter. It can be used up to 3-4 bar pressure, therefore it can only be used as a zone line. It can be used with HDPE quick connectors, but it is recommended to use the cheaper, conic parts designed especially for this purpose (available in ribbed or quick grip design).
  • – it opens or closes after the automatic sign, providing the programmed operation of the certain irrigation.
  • Manometersee also Pressure-gauge
  • Control valvea magnet valve installed in the beginning of the system. When the program starts, the automatic technology opens, then closes the control valve. This way the main line only becomes under pressure while the irrigation program operates. Damages due to burst pipe can be prevented.
  • Micro spreaderused for the irrigation of smaller areas like rock gardens or truck gardens. A built-in simple spreader on a pole. Installed to the system through a 7 mm pipe. Available only in 180 and 360° designs, with an irrigation circle of about 0,5 – 2,5 m.
  • – It switches on / off the pump at a certain low / high pressure. Generally equipped with hydrophor tank.

  • Pressure-gaugeto measure water pressure. Usually between 0-10 bar.
  • Pressure lossthe water loses pressure in the pipeline. The adequate size of the pipe must be chosen according to the water supply and the distance, as the water pressure will decrease by the time it gets to the sprinkler.
  • – The operation time of the irrigation zone. Generally you can set it by minutes, or depending on the types, by seconds.

  • Irrigation daydue to automatic programs, we can set ahead the day of the certain irrigation programs.
  • – irrigates the area with a water curtain. The irrigation distance is usually 6-30 m, depending on the type. Low water yield.
  • –Sprinklers providing rain-like watering. Usually surface or sometimes fix sprinklers. An installed nozzle on the top defines the irrigation pattern and radius (generally between 2,0-5,5 m). High water yield.

  • Starting timethe timing of the irrigation. According to the type of the automatic technique, more starting time can be programmed.
  • Valves – used at the installation of the magnet valves. Available in straight, T, 3-, 4-, 5- quick release screw ring, elbow or cross valve designs.
  • Pump relay switch – an A.C. relay, which switches the power in the direction of the pump, when the automatic irrigation program starts, producing 24 V. The relay does not provide safety for the pump in case of run dry.
  • Irrigation radius – the distance covered by the irrigation water. Depending on the type, from a few cm up to 30 meters.
  • Irrigation pattern – the shape of the area irrigated by the sprinkler. A section or whole circle (fix or adjustable) or rectangular pattern.
  • Sprinkler – a device to provide irrigation. In backyards, surface gun sprinklers, rotary or micro spreader sprinklers are recommended.
  • – see also Drain
  • – a regular ball valve (1/2”). The system can be drained by connecting to the compressor before winter. This process is called drain.
  • – see also Automatic
  • Check valve – it only lets water flow in one direction. Check valves can be equipped only with spring or also with plastic swing. Its main function is to impede the water in the irrigation system to flow back to the municipal water supply lines. It also tries to block overflow at the sprinklers on lower areas. A special type is the double-check valve.
  • Water resource – the water resource of the irrigation system. It can be any dug or drilled well, cistern or garden tap etc.
  • Water yield – the amount of water flowing through a certain pipeline during a defined period of time. It is either measured with l/min or m3/h. Water yield also means the available water resource, and the amount of water flowing through the sprinklers or the magnet valves.
  • Fluid hammer – the result of the incapacity of the water flowing through the pipelines. In case of fast flowing it might overload the fittings and the pipelines.
  • Water connector – a device connected to the pipelines under constant pressure. By connecting a “key” we create a new water nozzle. It is hidden in the ground, and the cover protects the device against pollution.
  • Drain – preparation for the cold winter months. A compressor, through high-pressured air drains the water from the irrigation system.
  • – all the irrigation system accessories connected to the same magnet valve. It is called spray, rotary or drip etc. zone.
  • Lateral lines – pipelines after the magnet valves, through which water flows into the rest of the pipelines. It is under pressure only during the irrigation program.

A B C D E F G H I J K L M N O P R S T U V X Y Z