The sanitary butterfly valve has a stainless steel disc and a complete sealing element approved by FDA, so this kind of valves is applicable for the food industry. It functions to close bins, hoppers and silos containing powder or granular materials. KW.F butterfly valve is one of the most widely used devices in the world. 

KW2F-F pneumatic sanitary powder butterfly valve consists of two semi bodies adopting die casting with high-pressure impression, with the semi body made of aluminum alloy and the rotary disc made of stainless steel 304 and 316, plus a pre-stressed synthetic rubber sealing element. 

The valve is applicable for the food industry. 

It functions to close bins, hoppers and silos containing powder or granular materials. The valves customized for special occasions in the past have been transformed into industrial products with mass production by KANGWEI, and they are featured by being extremely versatile. 

KW2F-F butterfly valve can be applied for treatment of all powder and granular materials. The valve makes use of the material's own gravity to for cutoff and pneumatic transport of dry materials. It can be installed below hopers, bins, silos, spirals or other types of conveyers, or connected to pneumatic transport pipelines. Because of the valve's special structure and application of engineering materials, it's always a very economical and efficient choice. 

Performance - Characteristics - Benefits

Maximum withstanding pressure 0.2bar (2.9PSI)

Semi-body adopting die casting with high-pressure impression, made of aluminum alloy

Disc made of stainless steel 304 and 316

Standard and food sealing element 

Few assemblies

Light, easy for handling

Removable disc

Strong resistance to corrosion

Easy for assembling

Fast for maintenance

No remaining after transport of materials

Actuator type: pneumatic, electric and manual