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Permanent Pressure Pipe Plug&Rain®

Permanent pressure pipe Plug&Rain® - Under pressure

High Density Polyethylene (HDPE) piping is the right choice as a particularly pressure resistant main line in an underground irrigation system. It is durable, easy to install and excellent value for money. Before the first solenoid valve of your irrigation system, i.e. in the area of permanent pressure, the pressure resistance of the supply line should be at least PN10 (corresponds to a pressure resistance of 10 bar at 20°C). In this area our clamp connectors are used; they are designed for permanently applied pressure of up to 16 bar. As a rule, pipes with an outer diameter of 25 mm (3/4" PE pipe) and 32 mm (1" PE pipe) are in use.

Important parameters to be considered when buying a permanent pressure pipe made of HDPE

Apart from the required length of the piping material pay special attention to the following Parameters:

  • diameter (25 mm or 32 mm)
  • pressure resistance (PN10 to PN16)
  • UV resistance (only use black PE pipe for above-ground Installation)

Which pipe for which amount of water? How much water will fit through the pipe?

Generally, a 25 mm (3/4") PE pipe is sufficient for your garden irrigation to keep the pressure drop sufficiently low. However, if your water supply is significantly above 1.8 m³/h, and if this flow rate is required by one irrigation circuit, or if the distance between the water supply and the furthest sprinkler is significantly above 60 m, then you should use 32 mm (1") PE pipe for your irrigation system.

A 32 mm PE pipe can be used for irrigation systems up to 3 cubic meters of water per hour. This means that the pressure losses in the pipe can be kept low even at higher flow rates. You can calculate the pressure losses using the tool www.pressure-drop.com.

Planning your garden irrigation with the Plug&Rain® irrigation system from DVS Beregnung

With the free planning software, the DVS Irrigation Planner, you can plan your garden irrigation yourself in just a few steps. You can then order the material for the installation of your irrigation system from DVS Beregnung. Water sockets can also be integrated into the permanent pressure pipe so that you can install manual water outlets at various locations in your garden. This option can easily be included in the DVS Irrigation Planner.