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Front view of Toro 640 pop-up rotor model 644-02-40 showing rubber cover and full-circle pop-up head for turf irrigation.

Toro 640 Pop-up Rotor, 360° Arc with #40 Nozzle

Brand: Toro
Save 27%
$283.33
$205.42
SKU 644-02-40

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The Toro 640 Series pop-up rotor is a heavy-duty commercial sprinkler engineered for athletic fields, golf turf, parks and large commercial landscapes. The 644-02-40 model delivers a full 360° arc with a factory-installed #40 nozzle and a Check-O-Matic built-in check valve to prevent low-head drainage.

  • Durable construction: stainless steel, brass and engineered plastics designed for demanding commercial use and long service life.
  • Performance: full-circle 360° pattern with a spray radius of approximately 47–67 ft and a 27° trajectory.
  • Operating range: recommended pressure 40–90 PSI; maximum 100 PSI, minimum 40 PSI for proper operation.
  • Installation dimensions: 1" female inlet; pop-up to nozzle height 2 3/8"; overall body height 9".
  • Nozzle options: includes #40 nozzle; 640 Series offers a choice of five nozzles and multiple arc and drive assemblies.
  • Serviceability: standard rubber cover, available Valve-In-Head (VIH) and easily replaceable drive assemblies and nozzles.

Designed for reliability and easy maintenance, the Toro 644-02-40 is a proven choice where durability and consistent coverage matter. Refer to the included sell sheet and installation/service documents for nozzle charts, performance curves and detailed maintenance instructions.

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Frequently Asked Questions

What pressure range does the Toro 644-02-40 require?
Recommended operating pressure is 40–90 PSI; minimum 40 PSI and maximum 100 PSI for short durations.
What inlet size and pop-up height does this model have?
This model uses a 1" female inlet and has a pop-up-to-nozzle height of 2 3/8"; overall body height about 9".
Does the Check-O-Matic include a check valve?
Yes. The Check-O-Matic model includes a built-in check valve to prevent low-head drainage and keep laterals charged.