Butterfly valves for powders and granules

Ensure precise flow control and reliable sealing for gravity-fed or pneumatic systems with these versatile butterfly valves designed for efficient interception of powders and granules in various manufacturing processes.

Intercepts and Seals Powder and Granular Flow

The Butterfly Valves VFS from WAMGROUP are engineered to provide precise control in the interception and sealing of powdery and granular materials. These valves stand out due to their robust construction, featuring high-pressure aluminum alloy die-cast semi-bodies and an interchangeable disc in either SINT engineering polymer or stainless steel, making them highly abrasion-resistant. Designed for diverse applications in industries such as construction, food processing, and chemicals, they efficiently handle materials from bulk solids to pharmaceuticals.

Their unique design allows seamless integration below hoppers, silos, and conveyors, ensuring dust-tight and pressure-proof operation up to 0.2 bar. VFS valves are available in multiple configurations, including food-grade versions compliant with FDA and EN standards, to meet specific industry requirements. With options for ATEX certification, the VFS valves are suitable for use in potentially explosive atmospheres.

Operating through gravity-fed or pneumatically conveyed materials, they manage flow with minimal components, ensuring easy fitting and low maintenance, while ex-stock delivery enhances availability. The VFS valves facilitate both manual and continuous operations, optimizing process efficiency across various sectors.

Benefits

  • Ensures precise material flow control, enhancing production line efficiency.
  • Minimizes maintenance with easy-to-replace components, reducing operational costs.
  • Provides durable performance in abrasive environments, extending equipment lifespan.
  • Compatible with food-grade applications, ensuring compliance and safety.
  • Facilitates quick integration, cutting down installation time and associated expenses.

General


Applications
Lime,Drymix materials,Biscuits,Coking products,Steel,Asphalt,Tobacco,Noodles,Cosmetics,Chemical ad-mixtures,Soap,Pesticides,Industrial waste,Minerals,Bakery products,Chocolate,Fly-ash,Animal by-products,Cement,Convenience foods,Insecticides,Detergents,Granular materials,Glass,Spices,Varnishes,Rubber,Cocoa,Ceramics,Animal feed,Pasta,Sugar,Bulk solids,Rice,Plastics,Resins,Sand,Salt,Paints,Fertilizers,Petfood,Pharmaceuticals,Beverages,Fish food,Coffee,Flour,Gypsum,Iron,Refractory products,Ready-mix concrete,Powdery materials,Breweries
End products
Dog biscuits,Spaghetti,Anti-corrosive paints,Livestock feed pellets,Fireclay bricks,Concrete slabs,Wheat flour,Plastic granules,Asphalt pavement,Incinerated waste,Water-based varnishes,Beer,Rubber tires,Spice blends,Dry-mix mortar,Cocoa powder,Toilet soap,Pharmaceutical tablets,Bone meal,Ceramic tiles,Glass sheets,Portland cement,Fish pellets,Plasterboard,Malt beverages,Epoxy resins,Compound fertilizers,Granulated sugar,Tobacco leaves,Cat food,Chemical additives for construction,Fly ash bricks,Cement bricks,Ready-to-eat meals,Rice grains,Ground coffee,Laundry detergents,Quicklime,Silica sand molds,Metallurgical coke,Table salt,Agricultural pesticides,Silica sand,Bread loaves,Steel rods,Chocolate bars,Mosquito insecticides,Lipstick
Steps before
Powder Granulation,Material Conveying,Silo Filling,Hopper Filling
Steps after
Material Packaging,Pneumatic Conveying,Bulk Solids Discharging,Bagging
Input ingredients
powders,granules,dry materials,bulk solids,gravity-fed materials,pneumatically conveyed materials
Output ingredients
powders,granules,bulk solids,discharged materials
Market info
WAMGROUP is known for its expertise in manufacturing bulk material handling and processing equipment, including screw conveyors, dust collectors, and valve systems, with a strong reputation for innovation, quality, and global market presence.

Technical Specifications


Material of construction
High-pressure aluminium alloy die-cast
Disc options
Cast iron,SINT polymer composite,Stainless steel
Seal type
Pre-stressed elastomer,FDA/EN-approved for food applications
Pressure resistance
Up to 0.2 bar (2.9 PSI)
Component count
Few components
Weight
Lightweight
Flange type
V1FS
V2FS
Identical top and bottom flange
Interception mechanism
Suitable for gravity-fed or pneumatically conveyed materials
Application scope
Powders,granules,dry materials
Design characteristics
Abrasion-resistant
Maintenance
Time-saving,easy to fit
Disc interchangeability
Interchangeable discs
Delivery option
Ex-stock delivery
Special options
ATEX-certified available
Food-grade compliance
EN 1935/2004 standards

Operating Characteristics


Interchangeability
Interchangeable discs
Abrasion resistance
Highly abrasion-resistant
Mounting Flexibility
Fitted beneath hoppers,bins,or silos
Automation level
Manual operation / Automated using pneumatic actuators
Cleaning method
Manual / Easy to clean components
Pressure accommodation
Dust tight and pressure-proof up to 0.2 bar
Weight
Lightweight and easy to handle

Material Compatibility


Abrasion resistance
Yes
Corrosive resistance (e.g. acids)
Yes,with stainless steel disc option
Cleanability
Food-grade version available
Density/particle size
Suitable for powders,granules

Product type Characteristics


Applications
Silos / Hoppers / Bins


ATEX certification
Yes
EN 1935/2004 standards
Compliant
FDA compliance (for food-grade version)
Yes

Physical Characteristics


Feed/discharge method
Gravity-fed or pneumatically conveyed
Weight
Lightweight
Disc Material
Cast iron,SINT polymer,or stainless steel
Body Material
High-pressure aluminium alloy die-cast
Seals
Standard or food-grade applications
Discharge method
Pneumatic or gravity-fed

Custom Options


Disc Material
SINT polymer composite / Cast iron / Stainless steel
Seal Type
Standard / Food-grade
Design Type
V1FS with flexible sleeve / V2FS with top and bottom flange