Powder Butterfly Valves are used in all types of bulk solids processing plants where interception of gravity-fed or pneumatically conveyed dry powders or granules is required. VFS Butterfly Valves can be fitted beneath hoppers, bins, silos, screw or other type conveyors, or for material interception in pneumatic conveying ducts. Due to their special design and to the engineering materials used, they represent a particularly economic yet most efficient solution.
Body: Aluminum alloy
Disc: 304, molecular material
Stem: Stainless Steel
Size: 4″ – 16″ (100mm – 400mm)
Flange accommodation: EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN 10/ PN 16
Temperature range: -40 °C to + 120 °C (depending on pressure, medium and material)
Body style: Double flange, single flange
Applications: Powder, dust
Lightweight and easy to handle
Easy to fit
Output Torque 10Nm to 8000 Nm
Control: Double acting,Single acting normally closed, acting,Single normally open
Pneumatic accessories: Solenoid valve, limit switch box , filter, E/P positioner, hand wheel
All double acting and spring return units are suitable for both on/off and throttling applications. Actuators which can be actuated with other media such as hydraulic oil or water are also available as an option.
1, Two independently adjustable travel stop screws and a cam on the output shaft to permit precise bidirectional adjustment of movement in both the open and closed positions for quarter turn valves (+5° to -5° limit adjustment)
2, Integral porting
3, Standard units have anodized aluminum bodies with polyester coated end caps.
4, Special coatings and materials available for corrosive environments
5, NAMUR accessory compatible