Back Flow Preventer Valve

Back Flow Preventer Valve
Introduction Features & Key Properties Technical Details


Following the custom of spearheading numerous inventive products, the Astral Pipes has come up with one more value-added product 'Backflow Preventer Valve'. The Backflow preventer valve is typically used to shield private underground seepage frameworks and for flooding protection which is mainly caused by the public sewer system.


  • Buildings having plumbing fixtures on ground level & basements
  • Buildings in low-lying & flood-prone areas
  • Preferably all buildings, as a good engineering practice

Features & Key Properties

  • Solid and durable design
  • Leak-proof joining
  • Adequate elastic seal for effective fixing
  • Easy and fast installation
  • Automated operation
  • Removable top for ease of maintenance
  • Valve can be closed in both directions if required for maintenance
  • Prevents back-flow from rainwater as well as sewer lines
  • Designed to prevent the entry of rodents

Product Range

  • 110 mm
  • 160 mm
  • 200 mm


  • The valve should be installed in the main waste line connecting to the municipal manhole. Also, ensure to install it after the connection of the last plumbing fixture.
  • The valve should be installed in visible, easily accessible spaces
  • Preferably, the valve should be installed in the inspection chamber so that it can be easily operated & maintained and protected from any external damage
  • Valve should be installed on levelled & compacted surface. Spirit level provided on top of the valve can be used to maintain the correct level
Item Size (mm) Product Code Standard Packaging (nos)
Back Flow Preventer 110 M1920111209 02
160 M1920111212 02
200 9-5000-200 01
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