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Dripline Fittings and Accessories

A professional drip irrigation system for your garden or nursery requires quality fittings to complete the picture. Dural Irrigation can provide everything you need in commercial-grade quality fittings and accessories.


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A flush valve acts as an additional preventative from having blocked emitters in your drip line pipe.  It should be installed at the lowest point of the system; this is to allow any rubbish that may have made its way into the system to be flushed out. The flush valve lets approximately 2 litres of water out each time the system is turned on and is a must have for any drip system.

If you are coming off a mains water supply you must use a Pressure Reduction Valve (PRV). Dripline is intentionally made from weak walled poly pipe so that is extremely flexible for ease of installation. A PRV will reduce the pressure inside the dripline which needs to be between 10 - 30 psi. The PRV should be installed after a filter and/or solenoid valve in an automatic system.

The best way to prevent root intrusion within your emitters is to use a Techline Disc filter or use sub-surface XR rated drip line.  The Techfilter introduces minute traces of trifluralin into the system as water passes through to prevent root intrusion.  Sub-surface dripline has been designed and manufactured by incorporating Copper Oxide in the mould of the diaphragm cover of each emiiter and is used as a chemical-free root intrusion barrier.

These flags are plugged somewhere into your drip system main (feeder) line or poly pipe and are used to indicate when your drip system is turned on. The orange flag will stand up as a visual indication. In most cases drip line is not visible due to it being covered by mulch or dirt and therefore hard to tell if your system is turned on or operating efficiently.

In a typical drip line system you would install directly after your tap backflow prevention device, followed by a filter and then your pressure reducing valve.  The air release valve should be installed at the highest point of your main (feeder) line and the flush valve to be installed at the lowest point or at the end of your drip line.

No matter your irrigation system we always recommend installing a filter.  Even mains water can carry particles that can eventually clog your system.  We recommend using a disc filter with at least 120 mesh. Consider it an insurance product for your system.

Most local Governments require a back flow device to be installed before any connections to their water and recycled water pipes. Backflow prevention containment devices stop potentially contaminated water from flowing back into the mains water pipes. These devices are important as they protect our water quality - and the health of people using it.

An air valve is positioned at the highest elevation point in the system mainline. As air usually rises to the top, the vacuum breaker or air valve pops up to release any air bubbles to eliminate uneven watering in your dripline. A flush valve is positioned at the lowest elevation point in your mainline system, usually connected to a female threaded elbow, and will close off your poly pipe mainline. This flush valve will open up when the system first turns on and will flush out the first 2 litres of water, which will include the water that has been sitting in the mainline and dripline since the last time the system was turned on. This will flush any debris, creepy crawlies, bio-matter such as dog poo and insects so as to avoid any blockages in the emitters for the dripline to perform at its very best.

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