Brand: K-Rain SKU: RPS75I
Product Overview
The K-Rain RPS75I is a 4-inch gear-driven rotor with Intelligent Flow Technology, allowing the installer to reduce watering distance while simultaneously and proportionately reducing flow. Unlike a conventional radius screw that disrupts the stream, the dedicated flow control can adjust performance by up to approximately 50% and can shut off water at the rotor head. This gives contractors a dry adjustment point and helps preserve more even application when a zone contains different required radii.
Current K-Rain literature lists an approximate 26- to 48-foot radius, 0.9- to 9.7-GPM flow range, 20- to 70-PSI pressure range, and adjustable arc from 40° to 360°. The rotor includes eight standard and four low-angle nozzles and uses a 3/4-inch female NPT inlet. Its universal riser assembly fits compatible Hunter PGP and PGP Ultra cans, supporting certain retrofit projects without replacing the buried outer body.
The RPS75I can simplify field balancing, but it does not replace hydraulic design. Available dynamic pressure and total zone flow must still support every operating head. Use the correct nozzle first, then use Intelligent Flow adjustment for the required final radius and flow. K-Rain's “five free check valves per box” statement applies to manufacturer box quantities and should not be interpreted as five check valves included with one individual rotor.
Key Features
- Intelligent Flow Technology adjusts radius and flow proportionately
- Up to approximately 50% flow-and-distance reduction
- Full shutoff control at the rotor head
- 40°-360° adjustable arc
- Approximate 26- to 48-foot radius
- Approximate 0.9- to 9.7-GPM flow range
- 20- to 70-PSI operating range
- Eight standard and four low-angle nozzles
- Universal riser fits compatible Hunter PGP and PGP Ultra cans
Common Uses
- Residential and light-commercial turf zones with varied radius requirements
- Reducing overspray without severely disrupting the stream
- Balancing retrofit zones within available hydraulic limits
- Replacing a compatible 3/4-inch rotor where head-level shutoff is useful
Compatibility and Installation Notes
Confirm the zone's available pressure and flow, choose the correct nozzle, and then make proportional flow-and-distance adjustments from the head. Use matched precipitation and head-to-head spacing throughout the zone. When installing the riser in an existing can, verify Hunter PGP or PGP Ultra compatibility and inspect the body and seal surfaces.
Frequently Asked Questions
What are the current RPS75I performance ranges?
K-Rain currently lists approximately 26-48 feet, 0.9-9.7 GPM, and 20-70 PSI.
Can the flow be shut off at the rotor?
Yes. Intelligent Flow Technology provides full on/off control at the head.
Are five check valves included with one rotor?
No. K-Rain describes five check-valve assemblies per manufacturer box or case, not per individual rotor.
Why Buy the K-Rain RPS75I from Big Frog Supply?
The RPS75I provides a specific solution for zones needing proportional radius and flow adjustment rather than a generic rotor with only a stream-disrupting radius screw. Big Frog Supply also carries the standard RPS75, reclaimed-water versions, check-valve components, nozzles, and adjustment tools for choosing the correct level of control.
