i-90 Rotor
I-90 Family

I-90

The robust I-90 Rotor is built for long-distance natural turf applications in large parks, open spaces, and sports fields.
Radius 73' to 103'
Flow 29.5 to 83.8 GPM
Inlet Size 1½" NPT
  • Accurate: Exclusive PressurePort™ Technology maximizes distribution uniformity
  • Reliable: Advanced triple nozzles ensure consistent coverage
  • Efficient: Drain check valve saves water by preventing low-head drainage

Models

Model Description Add to List
I-90-ADV I-90 Rotor, 3" pop-up, adjustable from 40° to 360°, 1½" inlet, check valve, with eight nozzles included (25–73) +
I-90-ARV I-90 Rotor, 3" pop-up, adjustable from 40° to 360°, 1½" inlet, check valve, reclaimed ID, with eight nozzles included (25–73) +
I-90-36V I-90 Rotor, 3" pop-up, full-circle, 1½" inlet, check valve, opposing nozzles, with eight nozzles included (25–73) +
I-90-3RV I-90 Rotor, 3" pop-up, full-circle, 1½" inlet, check valve, opposing nozzles, reclaimed ID, with eight nozzles included (25–73) +

Choose: user-installed options

Model Description Add to List
467955

Sod Cup Kit for I90

+
234200

Rubber Cover Kit (0711 date code and after)

+
Model Description Add to List
HSJ-3-3-2-2-12

HSJ Swing Joint, 1½" heavy-duty swing joint, 1½" male NPT inlet, 1½" male NPT outlet, single top-out, 12" lay arm

+
HSJ-3-3-2-2-18

HSJ Swing Joint, 1½" heavy-duty swing joint, 1½" male NPT inlet, 1½" male NPT outlet, single top-out, 18" lay arm

+
HSJ-3-3-2-4-12

HSJ Swing Joint, 1½" heavy-duty swing joint, 1½" male NPT inlet, 1½" male NPT outlet, triple top-out, 18" lay arm

+
HSJ-3-3-2-4-18

HSJ Swing Joint, 1½" heavy-duty swing joint, 1½" male NPT inlet, 1½" male NPT outlet, triple top-out, 12" lay arm

+
I-90
I-90
I-90
User installed options

Contact your local distributor for product availability and ordering.

Specifications

Operating Specifications

  • Nozzle trajectory: 22.5º
  • I-90 nozzle choices: 8
  • Radius I-90 ADV: 66' to 97'
  • Radius I-90 36V: 73' to 103'
  • Flow I-90 ADV: 29.5 to 83.8 GPM
  • Flow I-90 36V: 30.5 to 83.3 GPM
  • Recommended pressure range: 80 to 120 PSI
  • Operating pressure range: 80 to 120 PSI
  • Precipitation rate: 0.75 in/hr approximately
  • Warranty period: 5 years

Factory-Installed Options

  • Reclaimed water ID

User-Installed Options 

  • Prefabricated PVC HSJ Swing Joints
  • Upper Snap Ring Assembly P/N 450105
  • Rubber Cover Kit  P/N 959300SP
  • Turf Cup Kit P/N 959400SP
    • No-dig servicing
    • No-dig arc adjustments
    • Quick-release turf cup assembly
    • Threads in cup lock/retain the turf

Videos

Hunter I-Series Rotors Product Guide

Learn about recent product improvements that raise the bar for durability and performance, and why there is no better commercial sprinkler than Hunte

All Product Videos

Features

The I-90 is Hunter’s longest-distance rotor specifically designed for natural turf, parks, sports fields, and public areas. With a radius of up to 101', the I-90 boasts the longest throw capability of all natural turf rotors. Yet its reduced-size diameter and cushioned rubber cover make it the perfect choice for parks and wide-open lawn areas, as well as perimeter watering of athletic fields and horse arenas. The rotor is also easy to service, with a “jar-top” body cap that allows quick access to the filter screen and check valve with no extra pieces, parts, or tools required. The I-90 is offered in two models: a full-circle opposing-nozzle model and an adjustable arc model, each with color-coded nozzles that can be field-changed to match the specific needs of any large site.

Key Benefits

Exclusive PressurePort™ Technology creates exceptional nozzle uniformity
Forward-facing triple nozzles (I-90) or opposing triple nozzles (I-90-ON) create uniform nozzle profiles in part- and full-circle applications
QuickCheck™ Arc Mechanism for fast arc adjustment and review of the arc setting
Part- and full-circle in one model provides flexible installation options and decreases inventory (I-90)
Drain Check Valve prevents low-head drainage (up to 7' of elevation)

Advanced Features

The opposing nozzle design offers excellent water distribution. With primary and secondary nozzles on opposing sides of the turret, streams arc in opposite directions as the sprinkler rotates for outstanding mid-range and close-in watering.

Advanced Feature - Opposing Nozzle 360 Model

All I-90 Series rotors have color-coded nozzles for easy identification and, the nozzle numbers approximate the flow in gallons per minute. Choose from the eight standard 22.5 degree trajectory nozzles or the eight 15 degree nozzles for low-angle applications.

Standard 22.5 degree trajectory nozzles

Low-angle 15 degree trajectory nozzles

Purple logo caps indicate the use of non-potable irrigation. They are available as a factory installed-option or as a replacement part.
I-90 Reclaimed Cap

As air in the system piping can cause long-term damage to rotors and plumbing, the drain check valve keeps lines from draining when the system is shut off. This saves water, reduces liability, and increases system life.

I-90 Sprinkler Assembly

Charts

 
I-90-ADV Nozzle Performance Data
Nozzle Pressure Radius Flow Precip in/hr
  PSI ft GPM
25 
Lt. Blue
80 66 29.5 1.30 1.51
90 67 31.5 1.35 1.56
100 68 33.2 1.38 1.60
110 69 35.6 1.44 1.66
33 
Gray
80 68 36.2 1.51 1.74
90 69 38.2 1.54 1.78
100 70 40.4 1.59 1.83
110 71 42.6 1.63 1.88
38 
Red
80 72 40.6 1.51 1.74
90 73 43.0 1.55 1.79
100 75 45.4 1.55 1.79
110 76 47.6 1.59 1.83
43 
Dk. Brown
80 74 46.1 1.62 1.87
90 74 48.5 1.70 1.97
100 75 50.7 1.74 2.00
110 77 53.4 1.73 2.00
48 
Dk. Green
80 77 50.2 1.63 1.88
90 79 52.6 1.62 1.87
100 81 55.1 1.62 1.87
110 82 57.5 1.65 1.90
53 
Dk. Blue*
80 81 54.9 1.61 1.86
90 84 57.2 1.56 1.80
100 86 59.5 1.55 1.79
110 87 62.1 1.58 1.82
120 88 64.4 1.60 1.85
63 
Black
80 86 62.3 1.62 1.87
90 88 65.5 1.63 1.88
100 90 69.0 1.64 1.89
110 91 71.9 1.67 1.93
120 92 74.7 1.70 1.96
73 
Orange
80 89 72.7 1.77 2.04
90 91 75.4 1.75 2.02
100 93 78.1 1.74 2.01
110 95 80.9 1.73 1.99
120 97 83.8 1.71 1.98

* Factory installed nozzle

Notes:
All precipitation rates calculated for 180 degree operation. For the precipitation rate for a 360 degree sprinkler, divide by 2.

 
I-90-36V Nozzle Performance Data
Nozzle Pressure Radius Flow Precip in/hr
  PSI ft GPM
25 
Lt. Blue
80 73 30.5 0.55 0.64
90 75 32.4 0.55 0.64
100 76 34.3 0.57 0.66
110 78 36.5 0.58 0.67
33 
Grey
80 77 36.3 0.59 0.68
90 78 38.4 0.61 0.7
100 80 40.6 0.61 0.71
110 81 42.7 0.63 0.72
38 
Red
80 80 40.6 0.61 0.71
90 82 42.9 0.61 0.71
100 83 45.3 0.63 0.73
110 85 47.7 0.64 0.73
43 
Dk. Brown
80 83 46.2 0.65 0.75
90 84 48.6 0.66 0.77
100 85 50.9 0.68 0.78
110 86 53.4 0.69 0.8
48 
Dk. Green
80 86 49.6 0.65 0.75
90 89 52.5 0.64 0.74
100 90 54.8 0.65 0.75
110 91 57.3 0.67 0.77
53 
Dk. Blue*
80 89 54.2 0.66 0.76
90 90 56.7 0.67 0.78
100 92 59.2 0.67 0.78
110 93 61.7 0.69 0.79
120 94 64.2 0.7 0.81
63 
Black
80 92 63.2 0.72 0.83
90 94 65.9 0.72 0.83
100 96 69.4 0.72 0.84
110 97 72 0.74 0.85
120 98 74.9 0.75 0.87
73 
Orange
80 96 72.1 0.75 0.87
90 98 75 0.75 0.87
100 99 77.8 0.76 0.88
110 102 80.5 0.74 0.86
120 103 83.3 0.76 0.87

* Factory installed nozzle.

Notes:
Precipitation rates for 36V models are calculated for 360-degree operation. All triangular rates are equilateral. For low angle nozzle performance, reduce radius by 15%. Complies to ASAE standard.

Documents

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Training

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