Sagar Air Pvt. Ltd. Offers DIDW and SISW Wheel. Sagar Air Pvt. Ltd. Has projects division and equipment manufacturing division. The Projects division offers its services in clean rooms, central evaporative cooling, ventilation, air conditioning and process cooling. DIDW and SISW Wheel have a capacity upto 2, 00,000 CFM. DIDW and SISW Wheel is a belt driven and direct driven centrifugal fan with forward curved and backward curved series BCDI & BCSI. The static pressure is upto 14" Cons and temperature is upto 200 Degree Celsius.