Duckbill Check Valve - Flanged

ProFlex Style 710 - Duckbill

TheProco ProFlex™ Style 710 flanged duckbill check valve is designed to bolt directly to both existing flanges, as well as new installations. The flanges are drilled 150# standard, however other drilling standards are available upon request. The ProFlex™ Style 710 can be installed in either a vertical or horizontal application.

Some notable features of the Proco ProFlex™ Style 710 include:

• All-rubber construction to resist abrasive slurries
• 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

The Series 700 ProFlex™ Rubber Check Valves from Proco Products, Inc.  are specifically designed for use in sewage treatment plants, outfalls, and tidal operations. They’re a cost-effective solution for controlling back pressures, and are a fully passive flow device, requiring no maintenance, no outside power sources or manual assistance to operate.

The Series 700 ProFlex™ rubber check valves are recommended as direct replacements for ineffective, maintenance-ridden flap type check valves, which are commonly known to seize, rust, or bind in unwanted positions. The Series 700 ProFlex™ rubber duckbill check valves provide backflow protection from occurrences including:

• Sewage slurries
• Outfalls to ocean fronts from heavy rainfall activity
• Land erosion due to back flow conditions
• Invasion of saltwater to freshwater pond