Brand: K-Rain SKU: P7005509
Product Overview
The K-Rain P7005509 is the light stem-and-disc replacement assembly for compatible K-Rain 4000 Series indexing valves. It uses the 0.025-inch light-blue spring configuration and is intended for lower-flow systems providing approximately 6 GPM or more.
A lighter spring allows the moving assembly to respond under lower available flow than the standard P7005507 version. The assembly still requires adequate pressure, correct valve installation, and a complete off-cycle so the valve can drain and advance. It should not be selected solely because an indexing valve is malfunctioning; restricted piping, a damaged cam, debris, seals, or insufficient pressure may also cause poor performance.
Key Features
- Light stem-and-disc assembly
- 0.025-inch light-blue spring
- For compatible 4000 Series indexing valves
- Recommended for approximately 6 GPM or greater
- Lower-flow alternative to the standard white-spring assembly
Common Uses
- Replacing a matching light stem-and-disc assembly
- Servicing lower-flow 4000 Series valve systems
- Correcting a worn moving assembly after hydraulic requirements are verified
Compatibility and Installation Notes
Confirm the available system flow and use K-Rain's current selection guidance. Shut down and relieve pressure, keep internal components clean, and inspect the cam, top, body seals, and vacuum-release path before reassembly.
Frequently Asked Questions
What does “.025 blue” identify?
It identifies the lighter 0.025-inch spring and its blue color designation.
What is the recommended minimum flow?
K-Rain identifies the light assembly for approximately 6 GPM or greater.
Why Buy the K-Rain P7005509 from Big Frog Supply?
This listing separates the low-flow blue-spring assembly from the standard white-spring version and states the approximate flow threshold. Big Frog Supply also carries the related valve tops, cams, O-rings, and complete 4000 Series valves.
