Inlet control valve dampers continuously control the capacity of fans at a fixed speed.

• Rotating discs in the same direction 
• Valve blades can be adjusted from one point at the same time
• Rotates or contrarotates the swirl
• Firm and vibration-free wafer axle and actuator

Advantages of inlet control valve dampers

• Aerodynamic control without any loss
• Fan retains high efficiency at lower performance
• Fast switching time
• Valve discs always inside the body
• Low-volume stalling

Options for inlet control valve dampers

• Available in steel, stainless steel and high quality alloy
• Available with internal and external bearings 
• Seal with an adjustable compression packing or with o-rings
• Valve position can be set with handle, hand wheel, electric or pneumatic drive