BIOGEST non-return valves are bodyless flap valves according to DIN 19569-4 and are designed for preventing a backflow, in the event that the normal directional flow becomes blocked.

Advantages of a BIOGEST non-return valve

  • bodyless design (following DIN 19569-4)
  • corrosion resistant stainless steel manufacture (AISI 304 or 316TI)
  • easy installation
  • hollow flap available on request
  • Lever and Counter weights available on request
  • easy opening in flow direction
  • full seal against flow direction