FLEX800
TM
 Series Sprinklers 
FLX55-6 – 24-Position TruJectory
TM
 
October, 2014 
nozzles and a main nozzle adapter, and 10 
different color-coded inner/intermediate 
nozzles.  The main nozzle shall incorporate a 
trajectory adjustment that provides a main 
nozzle discharge angle from 7 to 30 in 1 
increments.  Trajectory adjustment shall be 
capable while the sprinkler is in operation or 
not.  The sprinkler shall identify the 
trajectory adjustment setting from the top of 
the sprinkler.  Close-in watering distribution 
shall be achieved by an inner nozzle capable 
of adjusting the distribution profile to 
optimize uniformity.  The cap shall identify 
the installed main nozzle and the date of 
manufacture. 
 
The pilot valve assembly shall incorporate 
one of five electrical activation types 
(described below) to control the ON-OFF 
operation of the sprinkler.  It shall provide 
four pressure-point selections (50, 65, 80 and 
100 psi; 3,5, 4,5, 5,5 and 6,9 Bar), with a 
vandal-resistant locking feature that ensures 
the desired setting is maintained.  The 
pressure points shall be graphically illustrated 
in psi and kg/cm2.  The pilot valve assembly 
shall include a pressure-regulation feature 
that continuously monitors the operating 
pressure inside the sprinkler body, making 
the necessary adjustments to ensure the 
desired and set regulation pressure is 
maintained.  The pilot valve assembly shall 
incorporate a manual control feature that is 
accessible from the top and allows the 
sprinkler to be manually selected “ON”, 
“OFF” or placed in the “AUTO” position 
awaiting commands from the control device.  
The manual selector shall be red in color for 
enhanced visibility.  The pilot valve assembly 
shall be stamped with the manufactured 
date. 
 
The sprinkler shall incorporate an electrical 
solenoid for activation of the integrated 
control valve in one of five activation types 
as described below.   
 
 
Standard Solenoid 
 The Standard solenoid shall be suitable for 
24 VAC, 50/60 Hz service with an inrush 
current of 0.30 A @ 50/60 Hz, and holding 
current of 0.20 A @ 50/60 Hz and shall be 
capable of withstanding a voltage surge of up 
to 9k volts in the common and normal 
modes without failure. 
Spike Guard Solenoid 
 The Spike Guard solenoid shall be suitable 
for 24 VAC, 50/60 Hz service with an 
inrush current of 0.12 A @ 50/60 Hz, and 
holding current of 0.10 A @ 50/60 Hz.  and 
shall be capable of withstanding a voltage 
surge of up to 20k volts in the common and 
normal modes without failure. 
 
Nickel-Plated Spike Guard Solenoid 
  The Nickel-Plated Spike Guard solenoid 
shall be suitable for 24 VAC, 50/60 Hz 
service with inrush current of 0.12 A @ 
50/60 Hz, and holding current of 0.10 A @ 
50/60 Hz. and shall be capable of 
withstanding a voltage surge of up to 20k 
volts in the common and normal modes 
without failure.  It shall also have a nickel-
plated core to provide additional corrosion-
resistance in potable and non-potable water 
applications. 
 
DC Latching Solenoid 
 The DC latching solenoid shall be activated 
by a momentary low-voltage pulse that 
moves the plunger from the “OFF” to the 
“ON” position where it is maintained by a 
permanent magnet in the solenoid.  To 
deactivate, a second momentary low-volt 
pulse is applied to move the plunger from 
the “ON” position to the “OFF” position.  
This activation type is generally used with a 
GDC module that is remotely located. 
 
Integrated GDC Module 
  The  Integrated  GDC  Module  activation 
type incorporates the GDC module attached 
to the outside of the sprinkler body and 
includes a DC latching solenoid for 
activation of the control valve.  The DC 
latching solenoid shall be activated by the 
Integrated GDC module with a momentary 
low voltage pulse that moves the plunger 
from the “OFF” position to the “ON” 
position where it is maintained by a 
permanent magnet in the solenoid.  To 
deactivate, a second momentary low-volt 
pulse is applied to move the plunger from 
the “ON” position to the “OFF” position. 
 
 
 The internal valve assembly shall be a 
piston-type that vents to the atmosphere, 
providing valve friction loss of less than 5 
psi (0,34 Bar).  The sprinkler shall be 
designed to provide smooth valve closure in 
excess of two seconds to minimize damage 
resulting from surges and water hammer.  All 
valve seals shall be constructed of natural 
rubber.  The valve seat seal shall be 
constructed of fabric-reinforced natural 
rubber.  The electric valve assembly shall 
incorporate a 100-mesh stainless-steel screen 
for the control water, preventing entry of 
foreign materials into the pilot valve 
assembly. 
 
  The sprinkler body and cap shall be 
injection-molded from ABS – a corrosion-
proof, impact-resistant, UV-resistant, heavy-
duty, engineering-grade plastic material.  The 
cap and nozzle base shall incorporate a pull-
up feature that provides improved 
serviceability of nozzles and riser.  The 
sprinkler shall have two plastic filter screens 
– a top-serviceable coarse rock screen in the 
body inlet sized to prevent entry of larger 
foreign material from entering the body, and 
a finer screen threaded into the riser, sized to 
prevent foreign material from clogging the 
nozzle. 
 
  The sprinkler shall have a riser/body seal 
assembly that regulates flushing during pop-
up and retraction to clear any debris from 
around the riser, and a heavy-duty, stainless-
steel spring to ensure positive retraction.  
The riser is sealed by a durable, over-molded 
urethane ring on the seal retainer.  Sprinkler 
flush rate shall not exceed 5 GPM (18,9 
LPM). 
 
  The sprinkler shall be capable of identifying 
the use of effluent water via a lavender-
colored marking.  The sprinkler cap shall 
indicate model designation, nozzle number 
and manufacturing date code. 
 
The sprinkler shall be of a pop-up design 
with an overall height of 11 5/8” (295mm), a 
body flange diameter of 7
5
/
8 
” (194mm), a 
cap diameter of 3
5
/
8 
” (92mm) and a pop-up 
stroke of 4 
3/16” (106mm).   The sprinkler 
shall have a 1½” (40mm) ACME female-
threaded inlet.  The sprinkler shall be capable 
of covering ___ feet radius at ___ pounds 
per square inch pressure with a discharge 
rate of ___ gallons per minute. 
 
  The sprinkler shall be developed and 
manufactured by an ISO 9001-certified 
facility.  The sprinkler shall be model 
number __________ and shall be 
manufactured by The Toro Company, 
Irrigation Division.