Use PGJ on the Same Zone with Other Rotors
Now, when landscapes require smaller areas to be irrigated together with larger areas, the
PGJ and PGP rotors can be combined on one zone! As shown in this design, one valve can
control both the smaller area and the larger area and provide a uniform precipitation rate
over the entire landscape. Normally, two valves would have to be installed: one for a spray
zone and one for a rotor zone. So, less valves, piping, wire, and stations on the controller are
required!
20' (6.1 m)
20'
(6.1 m)
40'
(12.2 m)
40' (12.2 m)
#1
Zone #1=20.8 GPM
.....PGJ-04 #1.0 nozzle 1.0 GPM (0.23 m
3
/hr; 3.8 l/min)
.....PGP-ADJ #8 nozzle 4.23 GPM (0.96 m
3
/hr; 16.0 l/min)
34560 x 1.0 gpm
90° x 20' x 20'
= .98"/hr with PGJ set at 90° arc
34560 x 4.23 gpm
90° x 40' x 40'
= .99"/hr with PGP set at 90° arc
PGJ Precipitation Rate:
(Sprinkler Spacing Method)
PGP Precipitation Rate:
(Sprinkler Spacing Method)
3.8 l/min x 21600
90° x 6.1m x 6.1m
= 24 mm/hr with PGJ set at 90° arc
0.23 m
3
/hr x 360000
90° x 6.1m x 6.1m
= 24 mm/hr with PGJ set at 90° arc
16.0 l/min x 21600
90° x 12.2m x 12.2m
= 26 mm/hr with PGP set at 90° arc
0.96 m
3
/hr x 360000
90° x 12.2m x 12.2m
= 26 mm/hr with PGP set at 90° arc
11
PGJ Rotors
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