Toro FLX35, FLX55 User Manual
FLX35 & FLX55 Series Rotary Sprinklers
Installation and Service Instructions
Introduction
The FLX35 and FLX55 series full and part circle rotary sprinklers
are designed specifically for golf course applications.
Manufactured from durable, high-strength engineering plastic and
stainless-steel components, these sprinklers incorporate many
innovative and time-proven features for lasting, maintenance-free
operation.
Prior to installing the sprinkler, read through the recommended
installation and start-up procedures. Please observe all Warnings
and Cautions when installing and operating this equipment.
Features
• Adjustable Part circle (40°-330°) and true uni-directional full circle (360°) arc coverage
• Arc adjustment in 5° increments
• Dual trajectory main nozzle adjustment – 25° standard or 15° low angle
• Ratcheting riser in 2° increments
• Nozzle base clutching
• Two back nozzle positions
• Industry’s largest precision nozzle selection
• All nozzles are color coded, debris tolerant and threaded in from the front
• Five electric and two hydraulic activation types
o Electric – Satellite systems – Standard 24 VAC solenoid; SPIKEGUARD 24VAC solenoid; Nickel plated
SPIKEGUARD 24VAC solenoid
o Electric – 2-wire systems – DC Latching solenoid; Integrated GDC module w/DC latching solenoid
o Hydraulic – Normally Open valve in head; Check-O-Matic (requires remote valve)
• Constant velocity drive and variable stator provide consistent rotation speeds
• Manual control at the sprinkler ON-OFF-AUTO (electric models only)
• Selectable/lockable pressure regulation settings; 50 psi (3,4 bar), 65 psi (4,5 bar), 80 psi (5,5 bar) or 100 psi (6,9 bar)
• Indestructable stainless steel valve seat and valve communication tube
• Body inlet rock screen serviceable from the top
• All internal components are serviceable from the top of the sprinkler
Specifications and Performance/Application Data
FLX35 Series
• Radius: 43'–83' (13,1–25,3 m)
• Flow Rate: 8.2–47.3 GPM (31–179 LPM)
• Trajectory: Selectable 15° or 25°
• Arc: Full Circle (360°) or adjustable part circle (40°–330°)
• Recommended Operating Pressure:
65–100 PSI (4,5–6,9 Bar)
• Minimum Pressure: 40 PSI (2,8 Bar)
• Maximum Pressure: 150 PSI (10,3 Bar)
• Precipitation Rate:
Minimum: 0.43"/hr (10,9 mm/hr)
Maximum: 0.76"/hr (19,3 mm/hr)
• Body Height: 10" (254 mm)
• Pop-Up Height to Nozzle: 4 3/16" (106 mm)
• Inlet Size: 1" (25 mm) NPT, BSP or ACME
• Five electric activation types:
Standard Solenoid - 24 VAC, 50/60 Hz,
0.30 Amps Inrush, 0.20 Amps Holding
SPIKEGUARD Solenoid - 24 VAC, 50/60 Hz,
0.12 Amp Inrush, 0.10 Amp Holding
Nickel Plated SPIKEGUARD Solenoid - 24 VAC, 50/60 Hz,
0.12 Amp Inrush, 0.10 Amp Holding
DC Latching Solenoid - Momentary Low Voltage Pulse
Integrated GDC Module w/ DC Latching Solenoid -
Momentary Low Voltage Pulse
• Manual Control (Electric only): On-Off-Auto
• Check-O-Matic Model checks up to 37' (11,2 m) of elevation
• Eight Nozzle Variations
FLX55 Series
• Radius: 55'–92' (16,8–28 m)
• Flow Rate: 14.1–61.3 GPM (53,4–232 LPM)
• Trajectory: Selectable 15° or 25°
• Arc: Full Circle (360°) or adjustable part circle (40°–330°)
• Recommended Operating Pressure:
65–100 PSI (4,5–6,9 Bar)
• Minimum Pressure: 40 PSI (2,8 Bar)
• Maximum Pressure: 150 PSI (10,3 Bar)
• Precipitation Rate:
Minimum: 0.45"/hr (11,4 mm/hr)
Maximum: 0.94"/hr (23,9 mm/hr)
• Body Height: 11" (289 mm)
• Pop-Up Height to Nozzle: 4 3/16" (106 mm)
• Inlet Size: 1.5" (40 mm) NPT, BSP or ACME
• Five electric activation types:
Standard Solenoid - 24 VAC, 50/60 Hz,
0.30 Amps Inrush, 0.20 Amps Holding
SPIKEGUARD Solenoid - 24 VAC, 50/60 Hz,
0.12 Amp Inrush, 0.10 Amp Holding
Nickel Plated SPIKEGUARD Solenoid - 24 VAC, 50/60 Hz,
0.12 Amp Inrush, 0.10 Amp Holding
DC Latching Solenoid - Momentary Low Voltage Pulse
Integrated GDC Module w/ DC Latching Solenoid -
Momentary Low Voltage Pulse
• Manual Control (Electric only): On-Off-Auto
• Check-O-Matic Model checks up to 37' (11,2 m) of elevation
• Nine Nozzle Variations
Nozzle Performance Chart
FLX35 Series Performance Chart—25°
Nozzle Set 30
Nozzle Set 31
Nozzle Set 32
Nozzle Set 33
Nozzle Set 34
Nozzle Set 35
Nozzle Set 36
Nozzle Set 37
Front
Nozzle
Positions
Back
Nozzle
Positions
(White Plug)
102-2208 102-6906 102-0726 102-6907 102-0728 102-6955 102-6935 102-6936
Yellow Biege Yellow Brown Yellow Yellow Yellow Yellow Yellow Yellow Yellow Green Green Green Green Green
102-5670 102-6942 102-5670 102-5671 102-5670 102-6884 102-5670 102-6884 102-5670 102-6884 102-5670 102-6885 102-6531 102-6885 102-6531 102-6885
Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug
102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335
PSI Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM
50 43 8.2 53 13.8 56 18.3 61 21.7 65 25.3 — — — — — —
65 45 10.0 53 15.5 59 20.5 64 24.4 68 28.2 72 34.1 — — — —
80 46 11.5 57 17.3 62 22.7 67 27.1 71 31.1 75 37.8 78 40.3 80 44.0
100 47 13.4 59 19.1 65 24.9 70 29.8 74 34.1 79 40.9 81 43.8 83 47.3
(Yellow)
(Blue)
(Brown)
(Orange)
(Green)
(Gray)
(Black)
FLX35 Series Performance Chart—15°
PSI
Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM
50 43 8.2 52 13.6 58 18.1 61 21.5 62 25.6 — — — — — —
65 45 10.0 54 15.3 60 20.3 64 24.2 65 27.3 69 33.1 — — — —
80 46 11.5 58 17.2 64 22.6 69 26.8 69 30.2 75 36.8 76 39.7 76 42.9
100 47 13.4 60 19.0 66 24.7 71 29.5 72 32.9 78 39.5 82 42.6 82 46.1
Stator 102-6929 Blue 102-1939 Yellow 102-1940 White
Conversions FLX35-3134 FLX35-3537
■
Toro recommends the use of a 1
1
⁄4" swing joint at flows over 25-GPM (95-LPM). Sprinkler radius data collected in Toro’s zero wind test facility per ASAE standard S398.1.
All sprinklers are equipped with the selectable pilot valve that allows settings at 50, 65, 80 and 100 PSI.
Actual site conditions must be considered when selecting the appropriate nozzle.
Not recommended at these pressures. Radius shown in feet.
FLX55 Series Performance Chart—25°
Nozzle Set 51
Nozzle Set 52
Nozzle Set 53
Nozzle Set 54
Nozzle Set 55
Nozzle Set 56
Nozzle Set 57
Nozzle Set 58
Nozzle Set 59
Front
Nozzle
Positions
Back
Nozzle
Positions
PSI Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM
50 55 14.1 57 18.5 62 22.3 66 25.8 — — — — — — — — — —
65 57 15.8 60 20.9 65 25.1 69 28.7 73 35.9 — — — — — — — —
80 59 17.5 61 23.1 68 27.8 72 31.7 76 39.7 80 43.1 83 48.2 85 50.0 89 57.5
100 61 19.3 63 25.3 71 30.3 75 34.5 80 43.5 83 49.0 88 51.5 90 53.9 92 61.3
(Yellow)
102-6906 102-0726 102-6907 102-0728 102-6955 102-6935 102-6936 102-6909 102-4259
Yellow Brown Yellow Yellow Yellow Yellow Yellow Yellow Yellow Green Green Green Green Green Green Green Green Green
102-5670 102-5671 102-5670 102-6884 102-5670 102-6884 102-5670 102-6884 102-5670 102-6885 102-6531 102-6885 102-6531 102-6885 102-6531 102-6885 102-6531 102-6885
Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug Red Plug
102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335 102-4335
(Blue)
(Brown)
(Orange)
(Green)
(Gray)
(Black)
(Red)
(Beige)
FLX55 Series Performance Chart—15°
PSI
Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM
50 55 14.0 59 16.5 62 22.2 63 25.6 — — — — — — — — — —
65 56 15.6 62 20.7 65 25.0 66 28.5 75 35.3 — — — — — — — —
80 59 17.4 66 23.0 69 27.7 70 31.5 78 39.0 78 42.4 79 46.9 79 49.5 82 57.2
100 60 19.2 68 25.1 71 30.2 72 34.3 80 41.9 81 47.2 83 52.1 83 53.4 85 60.8
Stator 102-1939 Yellow 102-1940 White
Conver-
sions
Toro recommends the use of a 1
FLX55-5154 FLX55-5558
■
1
⁄4" swing joint at flows over 25-GPM (95-LPM). Sprinkler radius data collected in Toro’s zero wind test facility per ASAE standard S398.1.
All sprinklers are equipped with the selectable pilot valve that allows settings at 50, 65, 80 and 100 PSI.
Actual site conditions must be considered when selecting the appropriate nozzle.
Not recommended at these pressures. Radius shown in feet.
102-1941 White
FLX55-59
Sprinkler Spacing Guidelines
Precipitation Rate Formulas
• Square Spacing
No wind - 55% of diameter
4 mph wind - 50% of diameter
8 mph wind - 45% of diameter
• Triangular Spacing
No wind - 60% of diameter
4 mph wind - 55% of diameter
8 mph wind - 50% of diameter
• Single-Row Spacing
No wind - 50% of diameter
4 mph wind - 50% of diameter
8 mph wind - 45% of diameter
Note: Designing for zero (0) mph
wind conditions is not recommended.
Design for worst wind conditions.
For additional information, refer to
Toro Technical Data Manual,
form number 490-1737.
• Square-spaced sprinklers in pattern:
GPM of full circle x 96.3
(Spacing)
2
• Triangular-spaced sprinklers in
pattern:
GPM of full circle x 96.3
(Spacing)2 (0.866)
• Area and flow:
Total GPM of zone x 96.3
Total irrigated
Square feet of zone
• Single row:
GPM of full circle x 96.3
(Spacing) (Scallop)
Toro Swing Joints
Use Toro swing joints to connect the sprinklers to the lateral/main line pipe.
Toro swing joints provide swivel joints that allow the sprinkler body to be easily positioned
to finished grade and prevents pipe breakage by providing the flexibility to allow downward
movement if the sprinkler is run over by heavy equipment.
For installation using pipe thread connections (NPT or BSP), use PTFE tape only to seal
all threaded connections.
CAUTION: Use PTFE tape only for sealing pipe thread connections. Use of pipe dope or
other paste sealants can cause deterioration of the sprinkler body threads.
Tape should be applied to the male threaded fitting in compliance with the tape manufacturer
recommendations. Thread the fitting into the mating female threaded fitting in the sprinkler
body and service tee and tighten securely.
For installation using ACME thread connections, do not apply additional sealant.
CAUTION: ACME fittings incorporate an o-ring seal that requires no additional sealant.
Sprinkler fitting installation - Thread the ACME fitting into the sprinkler body and hand tighten until it stops. No
additional tightening or loosening is required.
CAUTION: Loosening beyond 270° will result in a thread leak.
Lateral/Mainline pipe installation - Thread the ACME fitting into the lateral/main line service tee and hand tighten until
it stops, then loosen up to one full turn to ensure flexible movement of the swing joint.
Figure 1
Wire Splices
CAUTION: Communication cable or station wire connections will deteriorate when exposed to moisture and earth
ground causing shorts or open circuits resulting in improper system operation.
All direct burial wire connections must be done with approved waterproof connections installed in compliance with the
manufacturer specifications. Contact your Toro Golf Distributor for approved waterproof connectors.
Always provide a wire service loop for each splice to ensure sufficient wire is available should future servicing be
required.
Connecting Hydraulic Control Tubing
Step 1 – Route control tubing from the controller to the sprinkler location(s).
Note: Leave an 18" (45.7 cm) service loop of tubing at each sprinkler to facilitate movement of sprinkler and
service operations. Refer to Hydraulic Control Systems Table for tubing run length and sprinkler elevation
information.
Step 2
Step 3 – Remove the tube retainer and poly cap from the tubing adapter at the base of the sprinkler.
Step 4 – Slide the tube retainer over the end of the control tubing and attach tubing to adapter.
Step 5 – Slide tube retainer over the adapter area to secure tubing.
– Flush tubing thoroughly to remove all air and debris.
Hydraulic Control Systems Table
Maximum Distance
Type of System* From Controller Elevation Restrictions
Normally Open (01) Valve elevation should not exceed
with 3/16" Control Tubing 500' 25' above controller elevation or
70' below controller elevation.
Normally Open (01) Valve elevation should not exceed
with 1/4" Control Tubing 1000' 25' above controller elevation or
70' below controller elevation
* - All hydraulic connections on Toro valves are 1/4" insert type.
- Control line pressure must be equal to or greater than mainline pressure.
- Control line pressure range is 40 to 150 PSI.
System Start Up
WARNING! Never stand or lean over the sprinkler while the irrigation system is being filled, during manual or
automatic operation or when performing sprinkler service procedures. Direct contact with irrigation spray, a failed
or improperly installed sprinkler connection or sprinkler components forcibly ejected upward under pressure can cause
serious injury.
The following is a recommended procedure that will protect system components during system start-up. The procedure
is based on a velocity fill rate of less than 2' (.61 m) per second. See Table 3 below.
Step 1 – Use a jockey pump only to fill the system at a velocity fill rate of less than 2' (0.61 m) per second.
CAUTION: Failure to comply with recommended fill rate will increase line pressure resulting in a water
hammer effect that could damage sprinklers and piping components. See Warning above.
Step 2 – Use quick coupler keys at all tees and greens with quick coupler valves to bleed air from the system
lines during the filling process. For best results, do not compress air and then relieve it – bleed the air
continuously while filling the system.
Step 3 – After water has filled all lines and all air is removed, remove the quick coupler keys.
Recommended System Fill Rate
Pipe Size Flow Velocity Pipe Size Flow Velocity
in. cm GPM LPM ft/sec m/sec in. cm GPM LPM ft/sec m/sec
1/2 1.3 2 7.6 1.60 0.49 3 7.6 45 170.3 1.86 0.57
3/4 1.9 3 11.4 1.92 0.59 4 10.1 75 283.9 1.87 0.57
1 2.5 5 18.9 1.50 0.46 6 15.2 150 567.8 1.73 0.53
1-1/4 3.1 10 37.9 1.86 0.57 8 20.2 250 946.3 1.70 0.52
1-1/2 3.8 10 37.9 1.41 0.43 10 25.4 450 1703.0 1.97 0.60
2 5.0 20 75.7 1.80 0.55 12 30.5 500 1893.0 1.55 0.47
2-1/2 6.4 30 113.6 1.84 0.56
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