K-Rain 6403 4-Outlet 6000 Series Valve for 3-Zone Operation

K-Rain 6403 4-Outlet 6000 Series Valve for 3-Zone Operation

Brand: K-Rain | SKU: 6403

Product Overview

The K-Rain 6403 is a 4-outlet 6000 Series indexing valve configured for 3-zone operation. The installed cam advances through 3 selected outlets and leaves 1 physical outlet outside the operating sequence as the upstream pump or control valve shuts off and restarts.

This heavy-duty indexing valve is used for pump systems, high-flow city-water irrigation, and approved onsite wastewater or effluent systems where three downstream zones are served from one controlled source.

Before ordering, confirm the outlet count, zone sequence, inlet and outlet sizes, available flow, operating pressure, and whether the installation requires separate backflow protection. Indexing valves depend on a complete interruption of water flow between cycles so the internal stem-and-disc assembly can reset and advance.

Key Features

• 4-outlet body with 3-zone operating cam
• Water-operated indexing between downstream zones
• 1½-inch female NPT inlet
• Four 1½-inch slip outlets
• 15- to 150-GPM flow range
• 25- to 150-PSI operating range
• Die-cast metal upper housing with high-strength ABS polymer outlet body
• Built-in atmospheric vacuum breaker
• Current manufacturer warranty listed as seven years

Common Uses

• Three-zone pump-fed irrigation
• High-flow residential or commercial landscape systems
• Replacing a compatible 6403 distributing valve
• Approved three-zone wastewater or effluent distribution

Technical Specifications

• Series: 6000 Series
• Valve configuration: 4 physical outlets / 3 operating zones
• Inlet connection: 1½-inch female NPT inlet
• Outlet connection: Four 1½-inch slip outlets
• Flow range: 15- to 150-GPM flow range
• Pressure range: 25- to 150-PSI operating range
• Body construction: Die-cast metal upper housing with high-strength ABS polymer outlet body

Compatibility & Installation Notes

Identify the three active outlets before solvent-welding laterals. Install upright, maintain the required flow and pressure, and provide a complete shutdown between cycles. Follow current K-Rain instructions for cam orientation, drainage, and startup.

Frequently Asked Questions

What happens to the fourth outlet?
The three-zone cam leaves one physical outlet outside the sequence.

Can it be converted to four zones?
Yes. Install the compatible four-zone cam and connect the remaining outlet.

Does it require three controller wires?
No. Downstream selection is hydraulic; only the upstream water source must be cycled.

Why Buy the K-Rain 6403 from Big Frog Supply?

Big Frog Supply lists the 6403 with its exact three-zone cam, four-outlet 6000 Series body, high-flow operating range, and installation notes so contractors and maintenance teams can confirm the correct valve before ordering.