D500 Series Direct Drive Utility Blowers

  • Designed for easy installations in common applications requiring moderate air quantities (up to 650 CFM) in low static systems (up to .75" W.G.).
  • Available in CCW rotation only (as viewed from motor side).
  • Use WM-13M solid state motor speed control to reduce CFM on Models D503 to D506.
  • Use 3 speed selector for Low, Medium & High speed on D507.
  • Ideal for applications where low noise levels are a "must" since the motor is out of the air stream and the blower can be remotely located.

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TYPICAL MAXIMUM CFM @ SP
MODEL 1/8” SP 1/4” SP 3/8" 1/2" 5/8" 3/4"
D503 65 60 60 - - - - - -
D504 120 100 - - - - - - - -
D530 230 210 190 160 - - - -
D506 375 355 335 315 280 240
D507 - LOW 410 375 340 315 225 - -
D507 - MED 495 460 390 355 300 - -
D507 - HIGH 640 570 470 405 350 - -

MOTOR SPEED CONTROL

  • MODELS D503, D504, D530, D506 - Use a # WM-13M (Part # 8890016) solid state control to lower the motor speed and reduce the air flow up to the % of full capacity listed:  D503 - 30%;  D530 - 45%; D504 - 45%; D506 - 55%
  • MODELS D507 - Use a 3 speed switch to select High (1050 RPM), Medium (850 RPM) or Low (740 RPM) operation.

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