Proco ProFlex - Model Style 740 -Slip-in Style In-Line Rubber Duckbill Check Valve

Some notable features of the Proco ProFlex Style 740 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

The ProFlex 740 In-line Rubber Duckbill Check Valve is designed to fit directly inside of an existing pipe, and is supplied with a stainless steel internal expandable clamp to secure it in place.

For higher pressure/vacuum requirements, the ProFlex 740 In-line Rubber Duckbill Check Valve can also be manufactured using a unique Internal Vacuum Supports (IVS) design which is homogeneous to the inner reinforced layers of the valve allowing full flow with no obstructions and yet providing excellent anti-inversion features.

Style 740: Slip In Inline: Designed to slip directly inside of an existing pipe. Supplied with a stainless steel expandable clamp to secure it in place.

Notes: Higher back pressures can be obtained by using Internal Supports, contact PROCO.

Dimensions are approximate and may change due to pipe dimension changes, inlet, back pressures and flow rates.

1. Larger sizes available upon request.
2. Weights are approximate.

All PROCO Series 700 ProFlex rubber check valves are available in a wide selection of back pressure capabilities and elastomers, including NSF/ANSI 61 certified material. Because of the wide array of available configurations, there’s sure to be a Series 700 ProFlex valve to suit your application.

PROCO ProFlex check valves won’t freeze or deform, and they function solely on the inlet and back pressure which are present in each unique situation.

Each valve is designed by some of the most experienced rubber technicians in the industry, and are carefully constructed using the finest engineered materials available. All of our Series 700 ProFlex valves are precisely manufactured to ensure proper operation, and will provide years of unhindered, trouble-free service.