G-990

Model: Full-Circle

Radius: 22.3 to 31.4 m

Flow: 6.93 to 18.92 m³/hr

Flow: 115.2 to 315.3 l/min

Pressure: 5.5 to 8.3 bars

Pressure: 551 to 827 kPA

Covering 22.3 to 31.4 m, the G990 is the perfect combination of performance and reliability.

Product Tabs

Videos

Copy Link

Overview

Copy Link

Hunter G-900 Series golf rotors feature the perfect combination of durability, efficiency and user flexibility. Available in a variety of TTS and DIH configurations, they offer a solution for any long-range on-course watering need. Patented TTS technology allows for every serviceable element of the rotor to be accessed through the top. Mechanical and electrical, big and small, you can get to every component simply from the playing surface. That means there’s no more digging, and no more unsightly scars.

Key Benefits

Full circle water lubricated gear-drive
Exclusive PressurePort™ technology delivers uniform and consistent coverage
Closed-case design helps prevent sticking riser and leaking seals
Flexible performance with 16 nozzles to choose from

Advanced Features

TTS G900 Series Advanced Features

Hunter's revolutionary TTS (Total Top Servicing) design offers exclusive and unique features and benefits that are designed with serviceability and innovation in mind. Click here to see all the TTS Advanced Features and why a Hunter Golf system is the right choice for your course.

Large & Flexible Yardage Marker Options

Standard recessed area for
placard markers.

Optional raised marker for popular engraved and paint-filled markers.

Dual Trajectory Color-Coded Nozzles

All G900 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

Exclusive DIH Capability

Factory configured Decoder-In-Head (DIH) rotors are available for all 800 Series and 900 Series valve-in-head TTS rotors. All DIH rotors include Hunter's patented Total Top Programming technology. Whether on the workbench or after installation, the decoder station can be programmed without rotor dis-assembly.

Models

Copy Link

Order Information - Model Builder

Let us help configure the right product for you.

G-990 - Specification Builder: Order 1 + 2 + 3 + 4

1 Models

G-990 = Full Circle

2 Valve Options

Check-O-Matic (Converts to N.O. hydraulic valve-in-head)

Decoder valve-in-head

Two-station decoder valve-in-head (SSU configuration only)

Electric valve-in-head

3 Nozzle Options

4 Regulation

80 PSI; 5.5 bar; 550 kPa (nozzles 25 to 53)

100 PSI; 6.9 bar; 690 kPa (nozzles 53 to 73)

120 PSI; 8.3 bar; 830 kPa (nozzle 73)

Specs

Copy Link

G-990

Pop-up Height: 7.5 cm
Overall Height: 34 cm
Flange Diameter: 19 cm
Female inlet: 1½" Acme

MODEL SPECIFICATIONS

Full Circle

MODEL VARIATIONS

C = Check-O-Matic checks up to 8 m in elevation change and readily converts to Normally Open Hydraulic with through the top connections
D = Decoder Valve-In-Head with all "E" specifications below
DD = 2-Station Decoder Valve-In-Head with all "E" specifications below
E = Electric Valve-In-Head with adjustable pressure regulation, on-off-auto selector, 210mA (370mA inrush) solenoid with captive plunger and internal downstream bleed.

OPERATING SPECIFICATIONS

Discharge rate: 6.93 - 18.92 m³/hr, 115.2 - 315.3 l/min
Radius: 22.3 - 31.4 m
Pressure range: 5.5 - 8.3 Bar, 551 - 827 kPa
Pressure rating: 1000 kPa

G990 Dimensions

	G990
Overall Height	34 cm
Pop-up Height	8 cm
Flange Diameter	19 cm
Inlet Size	1-1/2" Female ACME

G990 Nozzle Performance Data*

Nozzle	Pressure		Radius	Flow		Precip mm/hr
	bar	kPa	m	m³/hr	l/min
25 • Lt. Blue	5.5	551	22.3	6.93	115.2	14.0	16.2
	6.2	620	22.9	7.36	122.6	14.1	16.3
	6.9	689	23.2	7.79	129.8	14.5	16.8
	7.6	758	23.8	8.29	138.2	14.7	16.9
	8.3	827	24.1	8.72	145.4	15.0	17.4
33 • Grey	5.5	551	23.5	8.25	137.4	15.0	17.3
	6.2	620	23.8	8.72	145.4	15.4	17.8
	6.9	689	24.4	9.22	153.7	15.5	17.9
	7.6	758	24.7	9.70	161.6	15.9	18.4
	8.3	827	25.0	10.20	170.0	16.3	18.9
38 • Red	5.5	551	24.4	9.22	153.7	15.5	17.9
	6.2	620	25.0	9.75	162.4	15.6	18.0
	6.9	689	25.3	10.29	171.4	16.1	18.6
	7.6	758	25.9	10.84	180.6	16.1	18.6
	8.3	827	26.2	11.40	190.0	16.6	19.2
43 • Dk. Brown	5.5	551	25.3	10.49	174.9	16.4	18.9
	6.2	620	25.6	11.04	184.0	16.8	19.4
	6.9	689	25.9	11.56	192.7	17.2	19.9
	7.6	758	26.2	12.13	202.1	17.7	20.4
	8.3	827	26.5	12.70	211.6	18.1	20.8
48 • Dk. Green	5.5	551	26.2	11.27	187.8	16.4	18.9
	6.2	620	27.1	11.93	198.7	16.2	18.7
	6.9	689	27.4	12.45	207.4	16.5	19.1
	7.6	758	27.7	13.02	216.9	16.9	19.5
	8.3	827	28.0	13.52	225.2	17.2	19.8
53 • Dk. Blue	5.5	551	27.1	12.31	205.2	16.7	19.3
	6.2	620	27.4	12.88	214.6	17.1	19.8
	6.9	689	28.0	13.45	224.1	17.1	19.7
	7.6	758	28.3	14.02	233.6	17.4	20.1
	8.3	827	28.7	14.58	243.0	17.8	20.5
63 • Black	5.5	551	28.0	14.36	23.92	18.3	21.1
	6.2	620	28.7	14.97	249.5	18.2	21.1
	6.9	689	29.3	15.76	265.7	18.4	21.3
	7.6	758	29.6	16.36	272.5	18.7	21.6
	8.3	827	29.9	17.01	283.5	19.1	22.0
73 • Orange	5.5	551	29.3	16.38	272.9	19.1	22.1
	6.2	620	29.9	17.04	283.9	19.1	22.0
	6.9	689	30.2	17.67	297.5	19.4	22.4
	7.6	758	31.1	18.29	304.7	18.9	21.8
	8.3	827	31.4	18.92	315.3	19.2	22.2
Note: Complies to ASAE standard. All precipitation rates calculated for 360° operation. All triangular rates are equilateral. * For low angle nozzle performance, reduce radius by 15

Documents

Copy Link

Catalogs

Hunter Golf Catalogue

Manuals

Literature

G-900 Series Product Cutsheet

Specification

USA

Metric

Golf Rotors Installation Details (DWG)

Photos

Copy Link

Studio

Photos Data Placeholder

G900 Series Comparison Chart

	G-990	G-995
FEATURES
ACME Threaded Inlet Size	1½"	1½"
Radius (m)	22.3 - 31.4	22.9 - 31.7
Flow Rate (m³/hr)	6.93 - 18.92	6.7 - 19.04
Flow Rate (l/min)	115.2 - 315.3	111.7 - 317.2
Recommended Pressure Range (Bar)	5.5 - 8.3	5.5 - 8.3
Recommended Pressure Range (kPa)	551 - 827	551 - 827
Precipitation Rate (mm/hr, 360°)	16.2 - 22.4	14.8 - 22.3
Dual Trajectory Capability	22.5º & 15º	22.5º & 15º
Check Height (m., C.O.M. Models)	8	8
Nozzle Options	16	16
Component Exchange Warranty	3 Years	3 Years
ADVANCED FEATURES
Contour "Back-Nozzle" Capability
Full-Circle Opposing Nozzles
Exclusive PressurePort™ Nozzle Technology
Yardage Marker Capable
Check-O-Matic Models
Electric Valve-In-Head Models
Exclusive - DIH Decoder-In-Head Models
Exclusive - TTS Total Top Serviceability
Exclusive - Made in The USA

Products

Irrigation Products

Golf Products

Product Resources

Professionals

Our Professionals

Tools & Services

Design Resources

Golf

Golf Innovations

Golf Products

Golf Resources

Golf Support

Homeowners

How?

Why?

Questions?

Support

Get Hunter

G-990

Covering 22.3 to 31.4 m, the G990 is the perfect combination of performance and reliability.

Product Tabs

Key Benefits

Advanced Features

TTS G900 Series Advanced Features

Large & Flexible Yardage Marker Options

Dual Trajectory Color-Coded Nozzles