| Excerpts: Sprinkler systems are very important in | | | | adjustable arcs to rotate in all directions. So no |
| the field of irrigation to get crop maturity with | | | | area will be left dry. |
| less amount of water. It is also used to minimize | | | | 2. Fire sprinkler systems: |
| the effect of fire in vast areas. | | | | Fire sprinkler system allows water flow under |
| Sprinkler system is mainly used for two purposes | | | | pressure to control fire. Previously they are used |
| for irrigation and for controlling the effect of fire. | | | | in factories and large industries. Now they are |
| 1. Sprinkler irrigation system: | | | | available in compact size to be used in small |
| Sprinkler irrigation system discharges water like | | | | business concerns, homes etc. There are different |
| rain fall. This is most effective as they cover the | | | | types of Fire sprinkler systems. Wet pipe system |
| entire lands. This is suitable for wheat, gram, | | | | has automatic sprinklers that will spray water |
| pulses, vegetables, tea, cotton and other types of | | | | under pressure through pipes connected to them. |
| crops. They spray water in small drops. They can | | | | They are suitable for controlling fire in vast area. |
| be used in connection with pipes. Here water is | | | | Dry pipe system uses air pressure to reduce fire. |
| allowed to flow by pumping. They are easy to | | | | It is mainly used in unheated buildings or |
| install and maintain. They are strong and thus | | | | refrigerated coolers. It can be used in small areas. |
| ensure long life. They are corrosion resistant. | | | | Deluge system has deluge valves to piping that |
| They are suitable for any type of soils. They may | | | | supply water. This is more useful where fire |
| be made up of stainless steel or plastic. This | | | | spreads rapidly. Pre action system combines all |
| system is the best one for irrigating lawns and | | | | the three systems. It is used in museums where |
| crops with considerably less amount of water. | | | | books, rare arts etc are kept. It has two sub |
| Sprinklers that spray in fixed patterns are known | | | | types. Single interlock and double interlock. Single |
| as sprays and they can be used under low | | | | interlock is just like dry pipe system and double |
| pressure. High pressure sprinklers have impact | | | | interlock is similar to Deluge system. Foam |
| mechanism. They can rotate in half or full circle. | | | | sprinkler uses the mixture of water and foam |
| Floppy sprinklers are unique sprinkler system that | | | | that will result in foam spray from the sprinklers. |
| does not have any moving parts. They are | | | | This can be used in highly inflammable areas, air |
| suitable for irrigating closely spaced crops. Full | | | | ports etc. |
| circle and part circle impact sprinklers are made | | | | Muna wa Wanjiru is an Agricultural Engineer and |
| up of stainless steel material and they ensure | | | | Has Been Researching and Reporting on Irrigation |
| uniform rotation. Part circle sprinklers have | | | | for Years. |