SRM

The Low Precipitation, Low Flow Rotor for Close-Range Applications

The SRM is Hunter’s shortest-range rotor, and was designed to offer a convenient and efficient alternative to spray heads. It is capable of working in tandem with larger rotors to combine big and small areas in a single zone. Utilizing the SRM where appropriate results in fewer sprinklers performing more efficient work at a more economical price. The SRM features a rack of six water-efficient nozzles—all of which can be easily identified by its flow rates and installed and changed quickly and easily. This versatile rotor also includes a radius adjustment feature that fine-tunes the spray to keep water off driveways, walks, and other non-landscaped surfaces.

Product Tabs

Features

Model: 4"
Arc setting: 40 to 360 degrees
Nozzle choices: 6
Nozzle range: 0.50 to 3.0
Standard factory installed nozzle: 3.0 only
Through-the-top arc adjustment
Quick check arc mechanism
Water lubricated gear-drive
Warranty period: 1 year

Models

SRM Model Chart

	SRM-04
Overall Height	6-5/8"
Pop-up Height	4"
Exposed Diameter	1-1/8"
Inlet Size	1/2" Female NPT

SPECIFICATION BUILDER

MODEL	STANDARD FEATURE
SRM-04 = 4" Pop-up	Adjustable arc, 6 standard nozzles

EXAMPLE

SRM-04

4" pop-up, adjustable arc

1/2" and 3/4" Inlet Rotor Comparison Chart

View 1" and 1.5" Inlet Rotors >> [1]

A Standard that Has Yet to be Matched Hunter made its reputation on the quality, reliability and innovative features found in its rotary sprinkler line and continues to set the benchmark by which other manufacturer’s rotors are judged.	[2]	[3]	[4]	[5]	[6]
	SRM [2]	PGJ [3]	PGP-ADJ [4]	PGP Ultra^® [5]	I-20 [6]
QUICK SPECS
Radius	15' - 30'	15' - 37'	22' - 52'	17' - 46'	17' - 46'
Flow Rate (GPM)	0.42 - 3.4	0.64 - 5.3	0.5 - 14.1	0.36 - 14.8	0.36 - 14.8
Inlet Size	1/2"	1/2"	3/4"	3/4"	3/4"
FEATURES
Nozzle Options	6	8	27	22	22
Precipitation Rate (in/hr)	0.45	0.6	0.4	0.4	0.4
Recommended Pressure Range (PSI)	30 - 50	30 - 50	25 - 70	25 - 70	25 - 70
Operating Pressure Range (PSI)	20 - 100	20 - 100	20 - 100	20 - 100	20 - 100
Check Valves	Available	Factory Option	Available	Factory Option	Pre-Installed
Specialty Nozzles	N/A	N/A	N/A	Factory Option	Pre-Installed
Check Height (ft.)	7'	7'	4'	10'	10'
Factory-Installed Check Valve		Optional		Optional	10'
Warranty	1 Year	2 Years	2 Years	5 Years	5 Years
ADVANCED FEATURES
Low Angle Nozzle Choices
Automatic Arc Return
Non-Strippable Drive
Part and Full Circle in One Model
Headed & Slotted Set Screw
Reclaimed Water ID
Available Short Radius Nozzles
Available Factory Installed Check Valve with up to 10' Elevation Change
FloStop Control
Stainless Steel Riser Option
Applications
Residential
Commercial/Municipalities
Athletic Fields
High Vandalism Areas
Low Pressure Areas
Riser-Mounted Sprinklers
Ground Cover and/or Shrubs
Reclaimed Water

Specifications

Operating Specifications

Radius: 15' to 30'
Flow rate: 0.42 to 3.4 GPM
Recommended pressure range: 30 to 50 PSI
Operating pressure range: 20 to 100 PSI
Precipitation rates: 0.45 in/hr approx.
Nozzle trajectory: 18 degrees approx.

SRM Nozzle Performance Data

SRM Nozzle Rack SRM Nozzle Performance Data
Nozzle	Pressure (PSI)	Radius (ft.)	Flow (GPM)	Precip in/hr
Nozzle	Pressure (PSI)	Radius (ft.)	Flow (GPM)
.50	30	15	0.42	0.36	0.41
	40	16	0.50	0.38	0.43
	50	17	0.58	0.39	0.45
.75	30	15	0.42	0.36	0.41
	40	16	0.50	0.38	0.43
	50	17	0.58	0.39	0.45
1.0	30	19	0.85	0.45	0.52
	40	20	1.0	0.48	0.56
	50	20	1.1	0.53	0.61
1.5	30	23	1.3	0.47	0.55
	40	24	1.5	0.50	0.58
	50	25	1.7	0.52	0.60
2.0	30	25	1.7	0.52	0.60
	40	26	2.0	0.57	0.66
	50	27	2.3	0.61	0.70
3.0	30	28	2.5	0.61	0.71
	40	30	3.0	0.64	0.74
	50	30	3.4	0.73	0.84

SRM DIMENSIONS CHART

	SRM-04
Overall Height	6-5/8"
Pop-up Height	4"
Exposed Diameter	1-1/8"
Inlet Size	1/2" Female NPT

Resources

Manuals

[7]

USA

[7]

Français

[8]

Português

[9]

[10]

SRM Installation Card [7]

Photos

[11]

USA

[11]

[10]

SRM Photos [11]

Specifications

[12]

USA

[12]

[10]

SRM Written Specification [12]

Support

Topic	Title [13]	Rating [14]
FAQs, Troubleshooting, Video	Why is there a wet area around my sprinkler or rotor? >> Read More [15]	3.5
Troubleshooting, Video	Why has my rotor stopped rotating? >> Read More [16]	3.8
FAQs	What is the purpose of the little hole that leaks water on the side of my rotor's stem? >> Read More [17]	4.3

SRM

SRM

The Low Precipitation, Low Flow Rotor for Close-Range Applications

Product Tabs

SRM Model Chart

SPECIFICATION BUILDER

EXAMPLE

1/2" and 3/4" Inlet Rotor Comparison Chart

SRM Nozzle Performance Data

SRM Nozzle Performance Data

.50

.75

1.0

1.5

2.0

3.0

SRM DIMENSIONS CHART

Manuals

Photos

Specifications