DamaTajhiz Forward Centrifugal Fan (Non including Electromotor)

Purchasing Guide for DamaTajhiz Forward Centrifugal Fan (Non including Electromotor)

1. DamaTajhiz Centrifugal fan or radial fan equipped with forward-curved blades (Forward type) exist in direct, belt and pulley coupling Models.
2. The most important consumptions of Dama Tajhiz Forward Centrifugal Fan is air supply or exhaust with high volumes and low propeller round, pressure and middle efficiency  and can be used in air handling unit , air curtains and humid (moist) environments with middle dust. 
3. Forward centrifugal fan is known as air-conditioning model and are formed on propeller disk by installation of many thin single-blades and generally are produced in two unilateral input or single inlet and bilateral input or double inlet types. 
4. Coefficient table of air discharging unit in Dama Tajhiz Forward Centrifugal Fans 
5. For information on coefficient of air exhaust unit in Dama Tajhiz Backward Centrifugal Fans, the following table can be used: 
6. In order to order Dama Tajhiz Backward Centrifugal Fans, the following cases should be considered:
   
   • Design of foundation and vibration correction for industrial units
   • System type: A- Direct couple, B) Foley Belt
   • Type of system: A-Spiral (Screw) B) Ceiling
   • Type of Propeller: A- Forward B- Backward
   • Consumable sheet: A- Galvanized B) Oily
   • In case of Foley Belt of type of bearing: A- ucp, B- SN
   • Selection of output angle of spiral fan ((helical fan)
   • Looking through the outlet opening at spiral fan, we can find fan inlet direction.
7. To assure the desirable performance of fan at installation place, consider the following terms and cases:

• Permissible sound level
• Altitude
• Moisture and installation place
• Moisture (humidity) and temperature of gases entering to fan
• Existence of dust or alkaline or acidic gases
• Continuous work time of fan within 24 hrs. and or other particular conditions  

All DamaTajhiz fans are provided with 12-month warranty and 10 years of after-sale-services. The customer should install products and in case of request for installation by the experts, its expense shall be separately calculated. All bearings used in production DamaTajhiz Centrifugal Fans are made in Japan or Germany. Shell of DamaTajhiz Centrifugal Fans is made of galvanized sheet.  The price of electromotor is not included in the prices posted on the site. Contact Sales Dept. for information on electromotor prices..