Butterfly Valves - VFS to close silos, hoppers or bins

VFS Butterfly Valves
  • VFS Butterfly Valves consist of two high-pressure aluminium alloy die-cast semi-bodies, a SINT polymer composite or cast iron swivel disc, and a pre-stressed elastomer seal.
  • For the food industry a version with stainless steel disc and an FDA/EN-approved, integral seal is available.
  • While V1FS has a top flange and beaded bottom section – suitable for the attachment of a flexible sleeve – V2FS comes with identical top and bottom flange.
Function
  • To close silos, hoppers or bins containing powders or granules, VFS Butterfly Valves range among the most widely used equipment worldwide.
  • What used to be custom-built items for specific applications, WAM has turned into a mass-produced, industrial product with features that allow extremely versatile use.
  • VFS Butterfly Valves are used in all types of powder and granular material processing plants where interception of gravity-fed or pneumatically conveyed dry materials is required.
  • They are fitted beneath hoppers, bins, silos, screw or other type conveyors, or to intercept pneumatic conveying ducts.
  • Due to their special design and engineering materials used, they represent a particularly cost-effective yet most efficient solution.
Features:
  •     V1FS with top flange and beaded bottom section suitable for fixing a flexible sleeve
  •     V2FS with identical top and bottom flange.
  •     Dust tight and pressure-proof up to 0.2 bar (2.9 PSI).
  •     High-pressure, aluminium alloy die-cast semi-bodies.
  •     Disc in cast iron, SINT engineering polymer, or stainless steel.
  •     Seals for standard or food-grade applications.
  •     Made up of few components.
  •     Used for powders, granules, pellets.
  •     Lightweight and easy to handle.
Benefits
  •     Highly abrasion-resistant.
  •     Easy to fit.
  •     Time-saving maintenance.
  •     Low operating and maintenance costs.
  •     Interchangeable discs.
  •     Ex-stock delivery.
Options
  •     ATEX -certified.
  •     Compliant with EN 1935/2004 standards.
  •     Food-grade version with stainless steel disc and integral seal.
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