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Football Pitches |
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Requirement: To apply specific and variable amounts of water, evenly, to the whole of the pitch at any given time, in a safe manner, with minimal manual input and avoiding damage to the turf, soil structure and existing drainage or heating pipe work.
Concept: To accept water into a storage tank and using an automatic pumping system pressurise the water sufficiently to operate the sprinkler system. Install distribution mains pipe work and low voltage control cable around the pitch to pop-up sprinkler and remote sprinkler connection positions. Install a fully programmable controller to operate all the sprinklers at user defined times and for user defined periods. Sprinklers are installed in fixed positions around the pitch perimeter but, to avoid the risk of player injury, mobile sprinklers are employed for the centre positions.
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System: Designed with versatility and flexibility in mind the system can be readily adapted to suit the various sizes of pitch found across the UK. The system is installed with the minimum of disturbance to the playing surface.
Water, from a storage tank of sufficient capacity, is pumped by a suitable three-phase vertical multistage pump around a ring main buried in the perimeter of the pitch.
Part circle pop-up sprinklers with integral solenoid controlled valves are positioned around the perimeter of the pitch and connected to the ring main with flexible and adjustable connections. Full circle sprinklers, on the long axis of the pitch, on stands with flexible hoses are connected remotely to the ring main and solenoid controlled valves before the irrigation cycle commences.
An irrigation controller is connected by a series of wires, installed along with the water ring main, to each sprinkler and solenoid controlled valve. At a user defined time an irrigation programme is initiated by the controller and each of the sprinklers is operated in turn for a specific period allowing for the differing sector angles each has to irrigate and the water application required.
Water is applied gently and evenly ensuring uniformity of growing and playing conditions.
Generally an application rate of 4mm can be applied over a 2 hour irrigation cycle.
Dependent on water mains input and water storage capacity the irrigation cycle can be repeated on a regular basis throughout the day. |
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Typical Specification: · Electricity supply - 3 phase, 415 volts, 30amps · Water mains supply - 50mm diameter and float valve · Water storage tank - above ground 4.6m diameter, 2.3m high, 37.5m³ capacity · Pump performance - 10 m³/h @ 7 bars · Pump motor size - 5.5kW, 2900 rpm, 3 phase, IP55 protection · Valves and fittings - typically 2” diameter 16 bar working pressure · Underground mains - black MDPE typically 63mm diameter and 12 bar working pressure · Pipe jointing - electro-fusion and compression couplings |
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· Pop-up sprinklers - RainBird 950E adjustable part-circle, electric valve-in-head, top serviceable, pressure regulated to 5 bars, water jet 25 metre radius, 8.95 m³/h@5 bars
· Above ground sprinklers - S400 full circle sprinkler on stand with 2” diameter hose and quick action couplings · Sprinkler control cable - 1mm² PVC coated with numbered cores · Irrigation controller - Programmable for up to 16 remote stations, 3 fully adjustable programmes, 8 programme start times per day per programme, station run times individually adjustable from 1 minute to 12 hours, global percentage adjustment of run times, manual start of individual stations |
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Typical sprinkler layout |
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After sales - Prime Irrigation offer a full after sales package including Service Contracts, system Winterisation, spares, repairs and general maintenance. |
