Pneumatic&Electric&Manual Butterfly Valve

Tight Ventilation Shut-Off & Precision Airflow Control

Highlights

Provides reliable tight sealing for industrial air ducts and dust collection networks.
Available in pneumatic, electric, and manual (S-Manual) actuation.
Covers pipe diameters from DN200 up to DN800 with low torque operation.
Resilient rubber or metallic soft seal prevents air leakage under 1-3 kPa differential.

Performance Features

Precision-machined disc with EPDM or NBR soft seal edge ensures tight air shut-off in negative pressure dust collection ducts.

Equipped with NAMUR-standard pneumatic rotary actuators or intelligent electric servo motors for seamless PLC automated control.

Heavy-duty cast body maintains flange parallelism under duct vibration and thermal expansion, preventing disc binding.

Can the butterfly valve be used for throttling airflow?

Yes, when equipped with a pneumatic valve positioner or electric modulating actuator, it provides precise 0-90° proportional flow control.