Brand: K-Rain SKU: 6404
Product Overview
The K-Rain 6404 is a four-outlet 6000 Series distributing valve with a factory four-zone cam. It advances sequentially through all four outlets as the upstream pump or control valve cycles off and back on, providing full use of the four-outlet body.
The 6000 Series is built for higher-flow and higher-pressure service than K-Rain's lighter 4000 Series. A die-cast metal upper housing supports the indexing mechanism, while the outlet body uses high-strength ABS polymer. The valve accepts a 1½-inch male NPT supply connection and provides four 1½-inch slip outlets. K-Rain lists a 15- to 150-GPM flow range and a 25- to 150-PSI pressure rating.
Because the valve operates hydraulically, the upstream control must stop water completely between zone changes. The built-in atmospheric vacuum breaker helps the assembly release vacuum and reset, but local regulations may require separate backflow protection. Install the valve vertically, keep the internal mechanism clean, and design each of the four laterals within the available pressure and flow.
Key Features
- Four-outlet body with four-zone cam
- Uses all four outlets sequentially
- Die-cast metal upper housing
- High-strength ABS polymer outlet body
- 1½-inch NPT inlet and 1½-inch slip outlets
- 15- to 150-GPM flow range
- 25- to 150-PSI pressure range
- Built-in atmospheric vacuum breaker
- Seven-year current manufacturer warranty
Common Uses
- Four-zone pump-fed irrigation
- High-flow city-water landscape systems
- Commercial and large residential distribution
- Approved wastewater or effluent applications
Compatibility and Installation Notes
Connect all four outlets in the intended sequence and follow the current installation orientation. Use approved solvent-weld materials and allow full cure time. Verify that each zone receives at least the flow needed for dependable indexing and that the supply shuts off fully between cycles.
Frequently Asked Questions
Does the 6404 use every physical outlet?
Yes. The four-zone cam advances through all four outlets.
Can the valve be reduced to fewer zones?
Yes. Install the compatible two- or three-zone cam and revise the outlet connections.
What is the minimum listed flow?
The 6000 Series requires approximately 15 GPM for operation.
Why Buy the K-Rain 6404 from Big Frog Supply?
The 6404 is the complete four-zone configuration for customers who need all four 1½-inch outlets in the higher-capacity 6000 platform. Big Frog Supply also carries the complete repair-part family for maintaining the valve over its service life.
Product Type Heavy-duty water-operated indexing valve
Manufacturer Part Number 6404
Series K-Rain 6000 Series
Installed Cam 4-zone cam
Operating Zones 4
Physical Outlets 4
Upper Housing Die-cast metal
Outlet Body High-strength ABS polymer
Flow Range 15-150 GPM
Pressure Range 25-150 PSI
Built-In Vacuum Breaker Atmospheric type
Electrical Zone Solenoids Required No
Manufacturer Warranty 7 years
