This series is my factory ventilation valve according to the user the nature and characteristics of dusty gas from design and manufacture, is widely used in dusty gas, gas, gas, air and other media, in the metallurgical, chemical, cement, mining and other industries of the heating environmental protection equipment such as ventilation and dust piping system. 
 Ventilation butterfly valve: Body WCB, the valve plate WCB, 
 Surface can be required to do under the medium temperature paint high temperature treatment. The maximum temperature up to 350 degrees. 
 Nominal diameter: DN100 ~ DN3000 
 Nominal 0.1MPA, 
 Shell test pressure 0.15MPA, 
 Suitable medium: dust gas, gas, air, 
 Leak rate: ≤ 0.8% 
 Features: structural short, light weight, small flow resistance, wear resistance, less leakage, and flexible opening and closing 
 Directly with the electric actuator or pneumatic actuator connected, to do off valves, also can be used for flow control valve. 
 * Pneumatic actuators Italian imports, anodized surface, rack and pinion structure 
 * There are two switch positions + / -5 ° stroke adjustment 
 * NAMUR standard air interface, can be directly connected with the solenoid valve 
 * Up to 100 million times the normal life 
 * Compressed Air 4-7bar 
 * Aluminum alloy cylinder block, rack and pinion transmission, decent design, unique, and the valve position limit display designed to be a sign of leading technology products. The surface of the cylinder through the hard anodizing treatment, connecting dimensions meet ISO5211 standards, can be easily achieved with a variety of accessories and valves perfect match. 
 Torque range 8NM-3428NM.