Labels:text | screenshot OCR: BURGER Air Management VELOCITY REGAIN (VR) FAN CYLINDERS By operating under Bemolli 's theorum that if you increase the velocity of a fluid ( air ) . you decrease its pressure , the restricted diameter at the fan plane of rotation causes the air to speed up - thereby reducing the pressure below and increasing the effective air volume . Also , the large exit diameter expands the exhaust air and relieves the pressure against which the fans operate . Calculations indicate that about a 7 percent increase can be obtained . Design note : Be sure your contractor opens the fan deck cut circle to within 1/2 inch of the new bottom stack diameter. AIR AIR AIR AIR FLOW FLOW FLOW FLOW TYPICAL AIR FLOW BERNOLLI ENHANCED - END OF SECTION - 1 Continue 2 Previous 0 Main Menu
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