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Controller Wiring Guide

In the diagram below, you see a clear example of the wiring for a four valve controller system.

1 - The "P" wire

  • The wire connecting to the master valve

2 - The Master Valve

  • The master valve is an isolating valve that is an additional feature on certain controllers. A master valve will isolate your irrigation system and minimize water leaks.

3 - The Common Wire

  • The common wire needs to connect to every valve that will be communicating with the controller.

4 - The Station Wires

  • Depending on the size of the controller, you will have number station zones. In this example of 8 zone controller and stations, 1 to 4 are currently in use in the diagram. Each valve needs its individual station wire, 1 zone cannot control two valves.

Brass Tap Kit

The brass tap kit is our collection of products to provide an easy and effective solution to set up an irrigation system and still have access to your house tap. Using a combination of thread tape and sealant you can tightly secure your brass tap kit to a watertight position.

The Brass Ball valve allows you to isolate the irrigation system while still being able to run the garden tap.

The Backflow Prevention Kit is available and depending on your location the council may require you to use one. Backflow preventers stop the risk of your irrigation water contaminating the main water supply line if backflow occurs

Installing the tap kit involves two to three wraps of thread tape and cover with Weld-On Sealant. This allows for a watertight connection. For connecting to a home tap, you may need to be cautious of how many rotations needed to tighten the setup and whether one more rotation will align straight. We like to connect the Tee, Ball valve and Tap before connecting to the house, you can use the setup for leverage in small spaces and help you align straight. Thread tape and sealant is not required after the ball valve as this is where the water pressure is held.

Brass-Tap-Kit-3
Brass-Tap-Kit-backflo-3

The Wingback/Wall Pates and Bracket elbows are the alternative options in connection the Brass Tap Kits. The Plasson Wingback and Jimten Wall Plates allow you to connect directly into medium density pipe e.g. mains water pipe. The MD connection works the same as the retrospective brands and may need tightening with a tool.

The Low-Density Bracket Elbow from Hansen allows you to use one fitting to connect to Low-Density pipe

LD-Tap-Kit-3
MD-Tap-Kit-3

Canopy Drip irrigation

Drip Irrigation

Drip Irrigation is the use of emitters of water at a lower rate of application. These emitters apply water directly to the source/plant. The benefits of drip irrigation is less water wastage in comparison to sprinklers with more water used directly to the root zone of the plant.

Drip Irrigation is widely used overseas but not as common in New Zeland orchards. The rainfall in New Zealand expands the natural root growth of the plant. Sprinklers can effectively water the more extensive root growth, where drippers are watering the select area.

A sprinkler system is the most common system recommended for large root areas such as Apples, Pears, Stone fruit, Kiwifruit, Truffles, Passionfruit, Avocadoes, and Olives. Drip systems are commonly used in crops such as Strawberries, Blueberries, Vineyards, and smaller orchard trees.

Under Canopy Graphic

Which Dripper?

Drippers come in a variety of flow rates and applications. Standard flow rates for drippers are 2, 4 and 8 L/Hr, but can go much higher.  The example system we are showing is using 2 x 2 L/hr drippers spaced either side of the plant. Benefits to having one dripper as the water area would be less, not covering the growth of the roots.

It's advised to have the drippers away from the plant trunk, so the water drops to the canopy floor. Having the water always on the plants trunk can make it susceptible to disease.

Drippers come as a take-apart or button dripper. The Take-Apart drippers have a top that can be unscrewed for cleaning and unclogging in case any debris got into the line—saving time and money.

Pressure compensated drippers are recommended as you can ensure the distribution of water is even between the drippers. They are allowing for a precise calculation of flows per plant. The pressure compensated drippers also usually have a diaphragm inside the dripper to manage the flow. This diaphragm helps with alternating the clearance width. Helps to prevent blockage from debris.

Aquadrip Dripper 2 Litre per Hour
Drip Irrigation for Under Canopy
Drip Irrigation for Under Canopy Close Up

If you would like to talk to one of our experts on what would suit your orchard, please phone on 0800 130 905, or fill out the form below to email.

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Low-Density Fitting Guides

Low Density Fittings

Used for:

  • Low-Density Pipe
    • SKU: 300-(ID Pipe Size)-(Coil Size)
    • e.g 300-25-100 (25mm = ID Size, 100 = Coil Length)

Tips:

  • Low-density pipe is referred to by its inside diameter (ID)
  • The low-density fitting barbs go inside the pipe
  • The LD screw nut tightens overtop of the LD pipe.
  • Hand tightened
LD-Pipe-Fitting
LD-Pipe-Fitting
LD Poly Cut Section
  1. Before installing the fitting onto the pipe, always ensure the nut is wound back to the centre (body) of the fitting as far as possible.
  2. In cold conditions you may need to heat the pipe or run a large phillips screwdriver around the inside of the pipe to open up the pipe end, or a combination of the two for insertion onto the fitting hose tail. Some ways to soften the pipe are;
    • Dip the pipe into hot water in a thermos flask.
    • A gas torch, the larger the pipe bore the larger the flame required, but be careful not to over heat the pipe.
    • A vehicle exhaust but again be careful not to damage the pipe.
  3. Insert the pipe fitting into the pipe and force the pipe well up into the nut. You can use a rubber head mallet (not a steel hammer) if available to knock the fitting all the way onto the pipe. The pipe needs to go as far up into the nut as possible.
  4. Screw the nut back down over the pipe, you should feel the nut engaging the pipe within a couple of turns, if not back the nut off and force the pipe further onto the fitting.
  5. Screw the nut down over the pipe by hand until tight and then using poly grips, screw the nut down another 1 to 2 turns ensuring you hold the pipe with your free hand not the fitting.

When the nut is tight you should see no more than 4 to 5 threads at the back of the nut, if anymore again you have not forced the pipe onto the fitting far enough and need to back the nut off and go back to step 3

1 - Cut the pipe with pipe cutters, a knife or saw. Ensure a square cut of pipe ends. Clean burs off pipe. When making a repair in a burst pipe make sure the length of the cut away matches the length of the replacement fitting between the screwed on nuts.

LD fitting step 1

2 - Ensure the nut is fully wound back onto the body of the fitting. Push the pipe onto the fitting and as far as possible into the nut.

LD fitting step 2

3 - Wind the nut onto the pipe a few turns. Tighten with spanner or pipe grips.

LD fitting step 3

Medium Density Fittings

Used for:

  • Medium Density Pipe
    • Blueline
      • SKU: 2500-(OD Pipe Size)PN12-5-(Coil Length)
      • e.g 2500-25PN12-5-100 (25mm = OD size, PN12.5 = Bar, 100 = Coil Length)
    • Redline
      • SKU: 360-(OD Pipe Size)PN(Bar Rate)-(Coil Length)
      • e.g 360-63PN9-100 (63mm = OD size, PN9 = Bar, 100 = Coil Length)
    • Greenline
      • SKU: 370-(OD Pipe Size)PN(Bar Rate)-(Coil Length)
      • e.g 370-32PN8-100 (32mm = OD size, PN8 = Bar, 100 = Coil Length)

Tips:

  • Medium-density pipe is referred to by its outside diameter (OD)
  • Medium Density Fittings go overtop of MD Pipe
  • The pipe needs to be pushed past the o-ring in the MD fitting to seal
  • If the MD pipe is scratched or gouged, it may not create a seal on the o-ring and leak.
  • Use tools to tighten
MD-Pipe-Fitting
MD-Pipe-Fitting
MD Pipe fitting cut out

Lateral Fittings

Used for:

  • Lateral Pipe
    • SKU: 350-(ID Pipe Size)-(Coil Size)
    • e.g 350-25-100 (25mm = ID Size, 100 = Coil Length)

Tips:

  • Lateral pipe is referred to by its inside diameter (ID)
  • Lateral fittings are inserted inside the lateral pipe
  • Ratchet Clips are required for lateral fittings
  • Lateral fittings have a single barb
  • To assist in installation, use boiling/hot water to soften the pipe
Lateral-Pipe-Fitting
Lateral-Pipe-Fitting

Lateral Fittings vs Dripline Fittings

A confusing area around dripline is the size and correct fittings to use. The industry standard for most dripline is 16mm OD and 14mm ID. These use the dripline double barbed fittings. Even though they say 16mm, they're made for 14mm ID dripline.

The dripline we are recommending is 13mm ID, meaning you can use either the standard 13mm Lateral fittings or the 16/14mm dripline fittings. The benefits of using the 16mm dripline fittings, you won't have to use the Ratchet Clips, as you do for the Lateral Fittings because of the double barbs. The cons of using the dripline fittings are they are harder to push in.

Lateral Fitting - Single Barb
lateral-fitting-with-clip

Pros:

  • Easier to insert into the tube, due to being 13mm

Cons:

  • Needs Ratchet Clips to secure correctly
Dripline Fitting - Double barbed
double-barbed

Pros:

  • No need for Ratchet Clips with double barbed fittings
  • Less spending due to no Clips needed

Cons:

  • Harder to insert into the tube, due to being 14mm

Tip: Hot/boiling water will loosen the tube for easier insertion.

 

Which Pipe Fittings To Use

Medium Density Fittings

Used for:

  • Medium Density Pipe
    • Blueline
      • SKU: 2500-(OD Pipe Size)PN12-5-(Coil Length)
      • e.g 2500-25PN12-5-100 (25mm = OD size, PN12.5 = Bar, 100 = Coil Length)
    • Redline
      • SKU: 360-(OD Pipe Size)PN(Bar Rate)-(Coil Length)
      • e.g 360-63PN9-100 (63mm = OD size, PN9 = Bar, 100 = Coil Length)
    • Greenline
      • SKU: 370-(OD Pipe Size)PN(Bar Rate)-(Coil Length)
      • e.g 370-32PN8-100 (32mm = OD size, PN8 = Bar, 100 = Coil Length)

Tips:

  • Medium-density pipe is referred to by its outside diameter (OD)
  • Medium Density Fittings go overtop of MD Pipe
  • The pipe needs to be pushed past the o-ring in the MD fitting to seal
  • If the MD pipe is scratched or gouged, it may not create a seal on the o-ring and leak.
  • Use tools to tighten
MD-Pipe-Fitting
MD-Pipe-Fitting

Low Density Fittings

Used for:

  • Low-Density Pipe
    • SKU: 300-(ID Pipe Size)-(Coil Size)
    • e.g 300-25-100 (25mm = ID Size, 100 = Coil Length)

Tips:

  • Low-density pipe is referred to by its inside diameter (ID)
  • The low-density fitting barbs go inside the pipe
  • The LD screw nut tightens overtop of the LD pipe.
  • Hand tightened
LD-Pipe-Fitting
LD-Pipe-Fitting

Lateral Fittings

Used for:

  • Lateral Pipe
    • SKU: 350-(ID Pipe Size)-(Coil Size)
    • e.g 350-25-100 (25mm = ID Size, 100 = Coil Length)

Tips:

  • Lateral pipe is referred to by its inside diameter (ID)
  • Lateral fittings are inserted inside the lateral pipe
  • Ratchet Clips are required for lateral fittings
  • Lateral fittings have a single barb
  • To assist in installation, use boiling/hot water to soften the pipe
Lateral-Pipe-Fitting
Lateral-Pipe-Fitting

Dripline Fittings

Used for:

  • Dripline
  • Effluent Line

Tips:

  • Dripline is 16mm Outside Diameter (OD) and 14mm Inside DIameter (ID)
  • Dripline fittings are 14mm and inserted inside the dripline pipe
  • Dripline fittings are referred to by the outside diameter.
  • Ratchet Clips are not required for dripline fittings
  • Dripline fittings have a 2 or more barbs
  • To assist in installation, use boiling/hot water to soften the pipe. Use up and down movements
Dripline-Pipe-Fitting
Dripline-Pipe-Fitting

Driptape Fittings

Used for:

  • Driptape

Tips:

  • Driptape is a thin-walled tube
  • hand tighten the nut over top of the tape
Driptape-Pipe-Fitting
Driptape-Pipe-Fitting

PVC Fittings

Used for:

  • PVC Pipe
    • SKU: 800-(ID Pipe Size)-PN(Bar Rating)(Length)
    • e.g 800-25-PN125.8 (25mm = ID Size, PN12.5 = Bar Rating)(5.8 = Length)

Tips:

  • PVC Pipe is referred to by its inside diameter (ID)
  • Use Primer to clean the fitting and pipe before installation
  • Apply Solvent Cement on both the PVC pipe and fitting
  • Secure the fitting and hold to dry for 30 seconds
  • PVC Spigot fittings are male and go inside the female PVC Socket fittings or pipe
PVC-Pipe-Fitting
PVC-Pipe-Fitting