Split Butterfly Valve System

Split Butterfly Valve 2
Split Butterfly Valve 2

The contamination-free split butterfly valve advantage for hazardous materials with good flowability and high cleanliness requirements

For operations where cross-contamination and the containment of dust and particles is a central concern

THIELMANN split butterfly valve systems are designed to meet and exceed the rigorous requirements of industries that require the very highest quality solutions for the transition of materials between container and receiving unit, particularly where highly hazardous bulk materials are in use, or where the product needs to be protected from external agents, as in the Pharma industry.

For the safe and contamination-free transfer of products between container and receiving unit, THIELMANN split butterfly valves control dust and other materials for a safe operating environment, and ensure the integrity of the end product.

Principal areas of application are highly hazardous or delicate, easy to flow bulk materials where contamination levels must be kept to a minimum, and high cleanliness is paramount.



  • Beverage
  • Chemical
  • Food
  • Paint and Coatings
  • Pharmaceutical
  • Extra layer of control for the highest level of hermetically sealed transition between container and receiving unit
  • Particles remain contained before, during and after transfer
  • Eliminates dust exposure for contamination-free and clean room requirements
  • Enables a safe environment for operators working with highly hazardous bulk materials
  • Suited to bulk materials with good flowability
  • Manual, semi-automatic or fully automatic operation
  • Hygienic, cleanable systems
  • Lightweight and durable
  • Long lasting and recyclable
  • Manufactured from 100% high grade stainless steel

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