Powry valves

This valve is a compact powder flow regulator featuring high-precision discharge of various types of powder.


The powder passes through an opening (aperture) in the contact surfaces of two adjoining rotors.
The rotors turn in opposing directions, changing the effective cross-sectional area of the opening,and continuously control the amount of powder discharged.

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Operated by Twin Rotors, the cross-sectional area varies smoothly in concentric variation from fully open to fully close.


Provides stable, continuous pneumatic flow over a wide range, unlike the intermittent discharge of conventional rotary valves.

Can be used with powders that are highly abrasive or adhesive.

Wide range of size variation (50 to 100A) Controllable over rangeability of 5:1.

Delivery Record

Hot metal pretreatment facilities (Lime powder, magnesium, carbide, soda ash, iron oxide powder, etc.)

PCI facilities (pulverized coal)

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