K-Rain 4403 4-Outlet Indexing Valve for 3-Zone Operation

K-Rain 4403 4-Outlet Indexing Valve for 3-Zone Operation

Brand: K-Rain | SKU: 4403

Product Overview

The K-Rain 4403 is a 4-outlet 4000 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 model is used where one controlled water source needs to serve three laterals without a separate downstream solenoid and control wire for each zone.

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
• 1¼-inch slip inlet
• Four 1¼-inch slip outlets
• Approximate 10-GPM minimum flow
• 25- to 75-PSI operating range
• ABS polymer body
• Serviceable cam and moving assembly

Common Uses

• Three-zone residential irrigation
• Small-commercial sprinkler systems
• Pump-fed systems controlled from one water source
• Approved three-zone wastewater or effluent distribution

Technical Specifications

• Series: 4000 Series
• Valve configuration: 4 physical outlets / 3 operating zones
• Inlet connection: 1¼-inch slip inlet
• Outlet connection: Four 1¼-inch slip outlets
• Flow range: Approximate 10-GPM minimum flow
• Pressure range: 25- to 75-PSI operating range
• Body construction: ABS polymer body

Compatibility & Installation Notes

Install the valve upright and identify the three active outlets before solvent-welding laterals. Allow the system to depressurize fully between cycles, and check that each downstream zone stays within the valve’s flow and pressure requirements.

Frequently Asked Questions

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

Can it be converted to four zones?
Yes. Install the compatible four-zone cam and revise the outlet piping as required.

Is a separate control wire needed for every zone?
No. Zone selection is handled hydraulically by cycling the upstream water supply.

Why Buy the K-Rain 4403 from Big Frog Supply?

Big Frog Supply identifies the 4403 as the three-zone version of the four-outlet 4000 platform and lays out the operating range, connection sizes, and cam relationship so buyers can choose it instead of a two- or four-zone version with confidence.