3" Hydrocyclone Sand Separator – 220 GPM, Flange Connection

RKHC350 – 3" Hydrocyclone Sand Separator, 220 GPM

The RKHC350 is a 3" hydrocyclone sand separator that uses centrifugal force to remove sand, gravel, and heavy particulate from irrigation water. Water enters tangentially, creating a vortex that flings heavy particles to the outer wall and down into the collection tank. Clean water exits from the top. No screens or media to clog — maintenance is limited to periodically flushing the collection tank through the drain port.

Key Features & Benefits

• Centrifugal separation — removes sand and gravel without screens or filter media; nothing to clog or replace
• Reinforced plastic body — durable, corrosion-resistant construction designed for outdoor agricultural use
• Hydrodynamic design — engineered for maximum centrifugal action at 155–230 GPM flow rates
• Easy flushing — flush debris through the drain port without shutting down; collector cover opens for full chamber cleaning
• Factory-fit slip-on flanges — 3" Flange for straightforward installation

How Sand Separators Work

Water enters the separator tangentially at high velocity, creating a spinning vortex inside the conical chamber. Centrifugal force pushes heavier particles (sand, gravel, sediment) to the outer wall, where they spiral downward into the collection tank. The lighter, cleaner water reverses direction in the center and exits through the top outlet. Some fine particles may still pass through — install a disc or screen filter downstream for complete protection of drip emitters and sprinkler nozzles.

Download Specification Sheet

Dimensions - Inches

Dimensions - Millimeters

Spare Parts Available:

• Male x Female 1" straight thread ball valve: RK1BV1-S
• RKHC350-CAP Main cap for separator tank: RKHC350-CAP

Spare Parts Available:

• RKHC350-CAP Main cap for separator tank: RKHC350-CAP