The Proco ProFlex™ 720 in-line flanged rubber duckbill check valve is designed to fit directly inside of an existing pipe. This particular valve is supplied with a flat face rubber flange, which allows installation between existing pipe flanges, and eliminates the need for a valve body. Various drilling standards are available upon request.

Some notable features of the Proco ProFlex™ Style 720 rubber duckbill check valve include:

  • All-rubber construction to resist abrasive slurries
  • NSF 61 standard construction
  • Ultra-quiet operation, with no water hammer
  • Unique design to prevent backflow
  • Negligible maintenance and energy costs
  • Will not warp or freeze
  • Quick interchange with any flap type check valve
  • Available in sizes from 1” to 96”
  • Available with special ID to suit concrete pipe