Duct tube mounted check valve Gravity dampers ( non-return valves )


  • Installation: To prevent the back flow of air flow
  • Size : many sizes are available upon customers request
  • Shape : circular
  • Material : galvanized steel round tube slide damper
  • Packing: plastic bags

Product Description

Circular cross-section, slide duct check valve steel fins, sealing tape. The non-return valve opening pressure effect, and after the pressure is dropping due to locking of the stainless steel spring.