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About pressure compensating dripline

Pressure compensating dripline is a drip hose that contains pressure compensating drippers inserted into the extruded interior wall at specified intervals. Each of the drippers consists of a cylinder with a labyrinthine water passage and a diaphragm. The diaphragm inside the pressure compensating inline dripper continuously adjusts to varying water pressure, ensuring a constant flow rate. It also allows particles to pass through the dripper without harming it, providing reliable performance and a longer life. This method of dripper design with a wider flow path allows the dripper to operate at optimal flow rates under extreme conditions.

Most of the PC dripline available today is self flushing, and some have a better resistance to plugging then others.

In some of the dripline the dripper is cylindrical to reduce friction loss. In others it is flat and welded to the drip tubing.

Both the tubing and the drippers are manufactured from quality resins using hi-tech equipment to form a product that withstands the various chemicals and fertilizers used in agriculture and landscaping.

The average pressure range for the pressure compensating dripline is from 10 to 50 PSI depending on the manufacturer.

Pressure compensating dripline is available in flow rates of .5 to 1 GPH and in lengths of 100', 500' and 1000'. It can be used with compression or barb fittings. Pressure compensating dripline can be used below or above the ground and if used in landscape areas above the ground can be covered with mulch.

Pressure compensating dripline is commonly used to provide a continuous wetting pattern along a row or line.

The use of pressure compensating dripline can simplify the design of the entire irrigation system.

    Applications:
  • Agriculture, commercial and residential
  • Subsurface or surface irrigation
  • High traffic areas
  • Windy areas
  • Reclaimed water
  • Narrow and odd shaped areas

With pressure compensating dripline water can be applied uniformly on long rows and on uneven terrain. Pressure compensating dripline is commonly used in orchards, grape vines, nurseries, landscaping, and gardens. Much of today's agriculture uses this type of system.

 

Figure 1 Pressure compensating dripline provides uniform water application on long laterals and uneven slopes.

Recommended spacing of pressure compensating dripline in turf applications:

 

  Turf Applications Groundcover & Shrubs
  Sand Loam Clay Sand Loam Clay
Dripper Flow 1 GPH 5 GPH 5 GPH 1 GPH .5 GPH .5 GPH
Dripper Spacing 12" 12" 18" 12" 18" 18"
Drip-line Spacing 12" - 16" 18" - 22" 18" - 22" 16" - 20" 18" - 24" 18" - 24"
Burial Depth On-surface, or bury evenly throughout the zone or area to a maximum of 6" or 8"

Major manufacturers of pressure compensating dripline include Bowsmith, Netafim, Agrifim, Toro, DIG, Eurodrip, Rainbird, Point source and Plastro irrigation