FLEX800
TM
 Series Sprinklers 
FLX55-6 – 24-Position TruJectory
TM
 
October, 2014 
 
 
Specifications 
 Radius:  52’–100’ (15,8–30,5m) 
 Flow rate: 13.9–61.1 GPM (52,6-231 
LPM) 
 Arc:  Bidirectional, part circle rotation, 
adjustable from 40-330, and true 
unidirectional 360 full-Circle rotation. 
 Pilot Valve-selectable at 50, 65, 80 or 100 
psi (3,5, 4,5, 5,5 and 6,9 Bar) 
 Recommended operating pressure range: 
65–100 psi (4,5–6,9 Bar) 
 Maximum pressure:  150 psi (10,3 Bar) 
 Minimum pressure:  40 psi (2,8 Bar) 
 Activation types – Electric Valve-in-Head: 
- Standard Solenoid: 
 24 VAC, 50/60 Hz 
 Inrush:  0.30 A 
 Holding 0.20 A 
- Spike Guard Solenoid: 
 24 VAC, 50/60 Hz 
 Inrush:  0.12 A 
 Holding 0.10 A 
- Nickel-Plated Spike Guard Solenoid: 
 24 VAC, 50/60 Hz 
 Inrush:  0.12 A 
 Holding 0.10 A 
- DC Latching Solenoid (DCLS): 
 Momentary low voltage  pulse 
- Integrated GDC Module w/DCLS: 
 Momentary low voltage pulse 
 Stator variations:  3 
 Inlet size: 1.5” (40mm) ACME 
 Body height:  11 5/8” (295mm)  
 Body flange diameter: 7
5
/
8 
” (194mm) 
 Pop-up height to nozzle:  3¼” (83mm) 
 Pop-up height (overall): 4
3
/
16
” (106mm) 
 Weight:   
  3.61 lbs. (1,6 kg) 
  4.30 lbs. (2,0 kg) Integrated GDC 
Module 
 Three inline nozzles; rotating stream 
pattern 
 Precipitation rates: 
 Minimum:  0.50”/hr. (12,7mm/hr.) 
 Maximum:  1.00”/hr. (25,4mm/hr.) 
 Main nozzles:  9 (51, 52, 53, 54, 55, 56, 57, 
58 and 59) 
 Trajectory: Adjustable from 7–30 in 1 
increments (24 positions) 
  Apex and Radius: 
15
25
65psi(4,5Bar)
51
6’(1,8m)@51’(15,5m) 13’(4m)@54’(16,4m)
52
6’(1,8m)@51’(15,5m) 11’(3,4m)@64’(19,5m)
53
7’(2,1m)@59’(18m) 13’(4m)@68’(16,5m)
54
8’(2,4m)@63’(19m) 15’(4,6m)@74’(22,6m)
55
9’(2,7m)@66’(20m) 15’(4,6m)@76’(23m)
80psi(5,5Bar)
56
8’(2,4m)@75’(22,9m) 18’(5,5m)@83’(25,3m)
57
9’(2,7m)@74’(22,5m) 19’(5,8m)@82’(25m)
58 18’(5,5m)@45’(13,7m)
59 21’(6,4m)@49’(14,9m)
 
Bidding Specifications 
 
The sprinkler shall be capable of full-and 
part–circle operation and be a gear-driven 
rotary type.  The sprinkler shall include a 
ratcheting riser feature that allows the user to 
adjust the position of the riser in the body 
without disassembly.  The arc of the 
sprinkler shall be adjustable by the use of an 
adjustment band located between the nozzle 
base and riser.  The left terminus of the arc 
shall be fixed, with the right position 
adjustable from a 40 arc minimum up to a 
360 arc maximum.  When the 360 arc 
adjustment position is reached, the sprinkler 
will rotate uni-directionally in the clockwise 
direction.  The sprinkler shall be adjustable 
wet or dry, by hand, using no tools.  The arc 
adjustment band shall identify the 90, 180, 
270 and 360 arc positions. The end-of-arc 
dwell time shall not exceed 2 seconds and 
will generally be less than 1 second. 
 Rotation shall be accomplished by a water-
lubricated compound cluster gear drive with 
balanced reversing gear plate.  The drive 
assembly shall be driven by a spring-loaded, 
poppet-type, variable stator, sized to provide 
3-minute, full-circle rotation speeds 
throughout the pressure range.  The drive 
and stator assemblies shall be constructed of 
corrosion-proof plastic and stainless-steel 
components. 
 
 The sprinkler shall include a nozzle base 
clutching feature that allows the user to 
rotate the nozzle base in either direction, wet 
or dry, and hold it in one position during 
operation to allow for spot watering.   
 
Water distribution shall be via three nozzles 
mounted in a 2¼”-diameter (57mm) plastic 
nozzle turret.  The three nozzles shall be 
oriented in the same direction and elevate 
3¼” (83mm) above the body when in 
operation.  All nozzles shall be of a thread-in 
type accessible from the front with no other 
disassembly required.  All nozzles are color-
coded for easy identification of radius and 
gallonage performance capabilities, and shall 
be designed to allow any particle capable of 
passing through the riser screen to pass 
through the nozzle.  The sprinkler shall be 
capable of accepting a fourth nozzle that can 
be installed 180 from the main nozzle to 
provide coverage behind the sprinkler.    
This back nozzle position shall be 
manufactured with a factory-installed plug 
that can be removed to accept over 50 
different inner and intermediate nozzle 
combinations.  The sprinkler shall be capable 
of accepting 9 different color-coded main