Fit-frame butterfly valves for dry bulk solids

Achieve precise control and minimize contamination in your dry bulk material processes with these butterfly valves, designed for efficient flow management and exceptional sealing in food, feed, and industrial applications.

Intercepts and Manages Bulk Solids Flow

The VFP-VFPX Fit-Frame Butterfly Valves from WAMGROUP are engineered to optimize bulk solids handling by reducing material residue and contamination. These valves feature a unique design with high-pressure die-cast aluminum alloy bodies and a SINT engineering polymer or stainless steel disc, ensuring durability and abrasion resistance. Ideal for applications in flour milling, food processing, and plastics, they support seamless integration into processing lines beneath hoppers, silos, and conveyors, efficiently managing flow interception for powders and granules. VFP-VFPX valves are compliant with EC 1935/2004, suitable for food contact, and offer options for ATEX zone certification. Their compact design simplifies installation, while the interchangeable discs allow quick maintenance, maintaining high efficiency in operations.

Benefits

  • Minimizes material contamination with innovative Fit-Frame design.
  • Simplifies maintenance with easily interchangeable components.
  • Ensures compliance with food safety standards (EC 1935/2004).
  • Reduces installation complexity through compact dimensions.
  • Enhances operational safety with ATEX zone certification options.

General


Applications
Sugar processing,Pesticide,Rubber processing,Biscuit processing,Animal feed additives processing,Soap,Bakery plants,Animal feed milling,Beverage processing,Pharmaceuticals processing,Plastics processing,Cosmetics processing,Noodle making,Flour milling,Chocolate processing,Spices,Rice milling,Glass processing,Cocoa,Coffee processing,Pasta,Convenience food,Varnish,Fertilizer,Resin processing,Baby food,Insecticide processing,Petfood,Bakeries,Fish food,Paint,Salt processing,Detergent,Breweries
End products
Spaghetti,Mosquito repellent,Dog kibble,Infant formula,Emulsion paint,Vitamin supplements,Wheat flour,Rubber sheets,Oil-based varnish,Curry powder,Craft beer,Chicken feed,Cocoa powder,Chocolate chip cookies,Epoxy resin,Fish pellets,Croissants,Face cream,Plastic pellets,Liquid detergent,Granulated sugar,Ramen noodles,Beauty soap,Milk chocolate bars,Rice grains,Ground coffee,Instant noodles,Table salt,Aspirin tablets,Nitrogen fertilizer,Glass bottles
Steps before
Grinding,Drying,Emission control,Filtration
Steps after
Packing,Coating,Bulk storage,Transport
Input ingredients
dry powders,granules,bulk solids,powder materials,granular materials
Output ingredients
intercepted solids,controlled flow of powders,granules discharge
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
Aluminium alloy,SINT engineering polymer,stainless steel,cast iron
Disc Material
Cast iron,SINT,Polyacetal,stainless steel
Seal Type
Pre-stressed elastomeric seal
Pressure resistance
Up to 0.2 bar (2.9 PSI)
Flow Rate
Increased flow rates due to design
Compact Design
Lower overall dimensions
Certification
EC 1935/2004 compliant
Food-grade capability
Stainless steel disc and integral FDA-approved seal
Interchangeability
Highly abrasion-resistant interchangeable discs
Flange compatibility
PN and ANSI flange compatibility
Options
ATEX zone 20 internal and zone 22 external certification

Operating Characteristics


Automation level
Manual / PLC / SCADA
Batch vs. continuous operation
Batch / Inline Continuous
Cleaning method
CIP / Manual
Energy efficiency
0.5–2 kWh/kg moisture

Material Compatibility


Abrasion resistance
High-pressure die-cast semi-bodies in aluminum
Biological compatibility
FDA-approved seal for food applications
Cleanability
Food-grade materials compliant with EC 1935/2004
Corrosive resistance (e.g. acids)
Stainless steel and SINT polymer discs
Density/particle size
Compatible with powders and granular materials

Product type Characteristics


Interception of bulk solids
Yes
Use with pneumatic conveying ducts
Yes


ATEX certification
Zone 20 internal / Zone 22 external

Physical Characteristics


Valve Body Material
Aluminium Alloy
Disc Material
SINT Engineering Polymer / Stainless Steel / Cast Iron
Seal Material
Elastomeric Seal
Design Type
Compact Design
Valve Size
Customizable sizes available
Discharge Method
Gravity or Pneumatic
Compliance
EC 1935/2004 for food contact
Pressure Rating
Up to 0.2 bar (2.9 PSI)

Custom Options


Disc Material Options
Cast Iron / SINT® Engineering Polymer / Stainless Steel
Seal Material Options
Elastomeric / FDA-Approved for Food Applications