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Front view of Toro 640 pop-up rotor model 644-02-42 showing stainless-steel nozzle assembly, rubber cover and 2-3/8" riser on white background

Toro 640 Pop-up Rotor 360° with #42 Nozzle (644-02-42)

Brand: Toro
Save 27%
$283.33
$205.42
SKU 644-02-42
In Stock (1)

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The Toro 640 pop-up rotor (model 644-02-42) is a heavy-duty commercial sprinkler engineered for athletic fields, parks, campuses and large landscape installations. Built with a stainless-steel-encased nozzle assembly, engineering-grade plastic body and a standard rubber cover, the 640 Series delivers dependable performance in demanding commercial environments. This assembled rotor includes a #42 factory nozzle and a Check-O-Matic check valve to prevent low-head drainage and keep laterals charged.

  • Full 360° rotation for complete coverage in a single head.
  • #42 factory-installed nozzle; consult nozzle performance chart for radius and flow at site water pressure.
  • Check-O-Matic built-in check valve prevents low-head drainage and soil erosion.
  • 1" FNPT inlet fits standard 1-inch female-threaded lateral connections.
  • Pop-up to nozzle height: 2 3/8" (2-3/8 in.) for improved turf protection and player safety.

This rotor is designed for long service life: stainless-steel and brass components protect the drive and nozzle assembly while a rugged plastic body resists corrosion and wear. For exact radius, flow and pressure data with the #42 nozzle, use the included 640 Series Nozzle Performance Chart and the manufacturer installation/service instructions linked in the product documents. Installation should follow local codes and Toro's service instructions for best long-term reliability.

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Frequently Asked Questions

What inlet size and thread does this rotor use?
This model uses a 1" FNPT inlet and fits standard 1-inch female threaded lateral connections.
How high does the rotor pop up from the ground?
Pop-up height is 2-3/8" to the nozzle, suitable for turf and athletic field installations.
Does the Check-O-Matic prevent low-head drainage?
Yes. The built-in Check-O-Matic check valve prevents low-head drainage; follow installation instructions for proper setup.