K-Rain RPS75 Gear Drive Rotor: Specifications and Performance Data

Product Overview

Visual Description: The K-Rain RPS75 rotor is depicted, showing its main body, riser, and nozzle area. It is a compact, durable-looking sprinkler head.

The K-Rain RPS75 gear drive rotor is designed for basic residential and light commercial applications. It serves as a direct replacement for Hunter PGP rotors. A key feature is its reversing mechanism, a K-Rain patented technology that is the same mechanism used in the Hunter PGP (K-Rain currently licenses this patent to Hunter). The RPS75, combined with K-Rain's wide selection of standard and low-angle nozzles, ensures even water distribution.

Models

RPS75
RPS 75 Rotor

Other Options (Add to Part Number)

-CV: Check Valve
-NN: No Nozzle
-RCW: Reclaimed Water Use

Features and Benefits

Direct replacement for Hunter® PGP.
Right Position Start: Rotor rotates counterclockwise from a fixed right start position.
Riser fits in existing Hunter PGP cans: Simply unscrew the existing riser from the PGP can and replace with the RPS75 riser.
Top adjustment: No training necessary, the RPS75 has the same adjustment procedure as the Hunter PGP.
Full and Part circle rotation: Provides a full range of adjustment from 40° to 360°.
Non-flushing wiper seal: Reduces leaks caused by debris trapped under the seal.
3/4" Inlet: Replaces all standard rotors.
Ideal for low flow applications.
Universal adjustment tool: Compatible with existing Hunter® products.
Rubber Cover: Seals out dirt and increases product durability.
Wide Selection of Nozzles: Including standard and low angle, provides flexibility in system design.
Five Year Limited Warranty.

Visual Description: An image shows a well-maintained lawn with several K-Rain RPS75 sprinklers in operation, demonstrating their coverage pattern.

Specifications

Inlet: 3/4" Threaded NPT
Arc Adjustment Range: 40° to 360°
Flow Range: 0.75 – 8.2 GPM
Pressure Rating: 30 - 70 PSI
Precipitation Rate: 0.12 to 1.16 Inches Per Hour
Overall Height (Popped Down): 7 3/8"
Recommended Spacing: 25' to 45'
Radius: 22' to 51'
Nozzle Trajectory: 25°
Low Angle Nozzle Trajectory: 11°
Nozzles Included: 8 Standard and 4 Low Angle Nozzles
Riser Height: 4"

How to Specify

The K-Rain RPS75 rotor can be specified using its model number and optional features.

Model Number - Description

RPS75
RPS75-RCW (for Reclaimed Water Use)

Visual Description: The "How to Specify" section includes a visual example demonstrating the model number format, showing "RPS75" and "-RCW" under "Model Number", with "Description" as a placeholder.

Easy Arc Setting

The RPS75 features an intuitive top-adjustment mechanism for setting the spray arc.

Arc Selection: 40° to 360°
Adjustment: Adjust from the right start position.

Visual Description: The "Easy Arc Setting" section illustrates the arc adjustment process, showing the range from 40° to 360° and indicating that adjustments are made from the right start position.

Performance Data

The following tables provide performance data for various nozzles under different pressure conditions.

Standard Nozzles Performance

Nozzle	Pressure PSI	Radius FT.	Flow GPM
#0.75	30	29'	.7
#0.75	40	30'	.8
#0.75	50	30'	.9
#0.75	60	31'	1.0
#1	30	30'	0.9
#1	40	31'	1.0
#1	50	31'	1.2
#1	60	32'	1.3
#1.5	30	32'	1.2
#1.5	40	33'	1.4
#1.5	50	34'	1.6
#1.5	60	34'	1.8
#2	30	34'	1.6
#2	40	36'	1.8
#2	50	38'	2.0
#2	60	38'	2.2
#3 PRE-INSTALLED	30	36'	2.0
#3 PRE-INSTALLED	40	38'	2.4
#3 PRE-INSTALLED	50	40'	2.7
#3 PRE-INSTALLED	60	40'	2.9
#4	30	36'	2.6
#4	40	40'	3.0
#4	50	42'	3.4
#4	60	42'	3.7
#6	40	38′	4.2
#6	50	43'	4.9
#6	60	46'	5.5
#6	70	47'	6.0
#8	40	45'	6.0
#8	50	48'	6.8
#8	60	49'	7.6
#8	70	51'	8.2

Standard Nozzles Performance (Metric)

Nozzle	Pressure kPa	Pressure BARS	Radius METERS	Flow RATE L/M	Flow RATE M³/H
#0.75	206	2.1	8.8	2.6	.16
#0.75	275	2.8	9.1	3.0	.18
#0.75	344	3.4	9.1	3.4	.20
#0.75	413	4.1	9.4	3.8	.23
#1	206	2.1	9.1	3.4	.20
#1	275	2.8	9.4	3.8	.23
#1	344	3.4	9.4	4.5	.27
#1	413	4.1	9.8	4.9	.30
#1.5	206	2.1	9.8	4.5	.27
#1.5	275	2.8	10.1	5.3	.32
#1.5	344	3.4	10.4	6.1	.36
#1.5	413	4.1	10.4	6.8	.41
#2	206	2.1	10.4	6.1	.36
#2	275	2.8	11.0	6.8	.41
#2	344	3.4	11.6	7.6	.45
#2	413	4.1	11.6	8.3	.50
#3 PRE-INSTALLED	206	2.1	11.0	7.6	.45
#3 PRE-INSTALLED	275	2.8	11.6	9.1	.55
#3 PRE-INSTALLED	344	3.4	12.2	10.2	.61
#3 PRE-INSTALLED	413	4.1	12.2	11.0	.66
#4	206	2.1	11.0	9.8	.59
#4	275	2.8	12.2	11.4	.68
#4	344	3.4	12.8	12.9	.77
#4	413	4.1	12.8	14.0	.84
#6	206	2.1	11.6	15.9	.91
#6	275	2.8	13.1	18.5	1.11
#6	344	3.4	14.0	20.8	1.25
#6	413	4.1	14.3	22.7	1.36
#8	275	2.8	13.7	22.7	1.36
#8	344	3.4	14.6	25.7	1.54
#8	413	4.1	14.9	28.8	1.73
#8	482	4.8	15.5	31.0	1.86

Low Angle Nozzles Performance

Nozzle	Pressure PSI	Radius FT.	Flow GPM
#1	30	22'	1.2
#1	40	24'	1.7
#1	50	26'	1.8
#1	60	28'	2.0
#3	30	29'	3.0
#3	40	32'	3.1
#3	50	35'	3.5
#3	60	37'	3.8
#4	30	31'	3.4
#4	40	34'	3.9
#4	50	37'	4.4
#4	60	38'	4.7
#6	40	38′	6.5
#6	50	40'	7.3
#6	60	42'	8.0
#6	70	44'	8.6

Low Angle Nozzles Performance (Metric)

Nozzle	Pressure kPa	Pressure BARS	Radius METERS	Flow RATE L/M	Flow RATE M³/H
#1	207	2.0	6.7	4.5	.34
#1	275	3.0	7.3	6.4	.39
#1	344	3.5	7.9	6.8	.41
#1	413	4.0	8.5	7.6	.46
#3	207	2.0	8.8	11.4	.68
#3	275	3.0	9.8	11.7	.71
#3	344	3.5	10.7	13.2	.80
#3	413	4.0	11.3	14.4	.87
#4	207	2.0	9.4	12.9	.78
#4	275	3.0	10.4	14.8	.89
#4	344	3.5	11.3	16.7	1.00
#4	413	4.0	11.6	17.8	1.07
#6	275	3.0	11.6	24.6	1.68
#6	344	3.5	12.2	27.6	1.66
#6	413	4.0	12.8	30.3	1.82
#6	482	5.0	13.4	32.6	1.96

Note: Data represents test results in zero wind. Radius may be influenced by nozzle retention screw.

Contact Information

Irrigation-Mart

We SAVVY irrigation

Phone: 800-SAY-RAIN | Website: www.irrigation-mart.com

Location 1:

200 South Service Road East | Ruston, LA 71270-3442

Phone: 318-255-1832 | Fax: 318-255-7572 | Email: info@irrigation-mart.com

Location 2:

13799 Airline Highway | Baton Rouge, LA 70817-5924

Phone: 225-755-3447 | Fax: 225-755-1240

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