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ProFlex™ Style 711

The Proco Style 711 ProFlex™ check valves are engineered for installation on pre-existing pipe lines such as manholes, outfalls and vaults where the outfall invert of the pipe is close to the floor of the manhole or outfall. When a new installation is being designed, the 711 valves can be engineered into the pipe layout with little concern for outfall clearance due to its “low slope” design.

The new Style 711 check valves allow the valves to be installed without any costly and labor-intensive changes to the existing structure. The 711 is engineered to crack open at 1-2” of head pressure and with its unique engineered sloping bottom, the valve ensures zero potential for standing water. With its all elastomer design, the valve can be installed without concern for the future seizing or rusting which can cause premature failure and maintenance issues.

 

How Does it Work?

The advantage to the Style 711 is the sloping bottom which has been developed to offset the issues commonly affiliated with other flat bottom valves which often entrap solids and flows due to its design. The 711 has been carefully designed to prevent this issue and has a minimal slope which allows complete drainage yet still allows easy installs on minimal clearance areas.

The Style 711 has been engineered to allow a full port which is important in dealing with headloss and jet velocities. The valve is manufactured with 100% algae and barnacle resistant rubber and is also 100% fire resistant.

Advantages:

  • Unique bottom slope design ensures 100% drainage
  • Installs in flat outfall designs
  • Available in both flanged and slip-on design
  • An excellent choice for manholes and outfall installation
  • Ensures sealing from rubbish and small solids

 

Materials of Construction

Neoprene, ANSI/NSF-61 certified product elastomers, EPDM and other elastomers available. Please contact Proco.

Mounting Clamps or Retaining Rings

304 or 316 Stainless Steel

For more information about the features and benefits of the Proco ProFlex™ Style 711 rubber duckbill check valve, download our brochure.

For up-to-date pricing and availability information, contact Proco today.

 
**The ProFlex™ Slope-Bottom Style 711 Check Valves are covered by US PATENT NUMBER 11,221,081**

ProFlex™ 711 Informational Animation

All Proco Series 700 ProFlex™ Rubber Check Valves are available in a various selection of elastomers including ANSI/NSF-61 certified product under UL Certification #MH47689. The Proco Series 700 ProFlex™ Rubber Check Valves will not freeze or deform and function solely on inlet and back pressures which will be present in each unique application.

Each valve is carefully constructed using the finest of materials engineered by some of the most experienced rubber technicians in the industry. All check valves are engineered with precise detail to ensure proper operation and will provide years of unhindered operation and trouble free service.

**The ProFlex™ Slope-Bottom Style 711 Check Valves are covered by US PATENT NUMBER 11,221,081**

Available Styles & Materials

For Specific Elastomer Recommendations, See: PROCO "Chemical To Elastomer Guide"
PROCO Material Code Cover1,2 Elastomer Tube Elastomer Maximum Operating Temp. °F (°C)
BB Chlorobutyl Chlorobutyl 250 °F (121°C)
EE EPDM EPDM 250 °F (121°C)
NH Neoprene CSM 212 °F (100°C)
NN Neoprene Neoprene 225 °F (107°C)
NN-NSF61 Neoprene Neoprene 225 °F (107°C)
PP Nitrile Nitrile 212 °F (100°C)
NR Neoprene Natural Rubber 180 °F (82°C)

Notes:

ProFlexTM is a trademark of PROCO Products, Inc.
All products are reinforced with polyester tire cord.
1. Styles with Neoprene covers meet all requirements of U.S.C.G
2.  NN-NSF/61 UL Classified Water Quality
3.  Other Materials available. Please contact Proco Products, Inc.
Style 711
Diameter Standard Valve Dimensions Approx. Weight
Length Duckbill Height Eccentric Slope
in. mm in. mm in. mm in. mm lbs kgs
4 100 10.9 276 8.7 222 1.0 25 15 6.8
6 150 13.3 338 14.9 378 2.0 50 23 10.4
8 200 14.1 359 17.9 454 2.0 50 36 16.3
10 250 17.8 451 20.4 518 2.0 50 52 23.6
12 300 23.8 605 23.9 608 2.0 50 53 24.0
14 350 25.2 640 26.7 678 2.0 50 64 29.0
16 400 27.8 705 31.0 788 2.0 50 93 42.2
18 450 29.9 760 33.0 838 2.0 50 135 61.2
20 500 30.9 785 37.7 958 2.0 50 155 70.3
24 600 38.2 970 43.1 1096 2.0 50 235 106.6
30 750 44.0 1118 53.2 1352 3.0 76 565 256.3
32 800 45.3 1150 54.5 1384 3.0 76 618 280.5
36 900 52.4 1330 66.5 1690 3.0 76 725 328.9
40 1000 52.8 1340 69.5 1766 3.0 76 852 386.3
42 1050 55.0 1398 71.6 1818 3.0 76 915 415.0
48 1200 60.6 1540 81.5 2070 3.9 100 1035 469.5
54 1350 63.6 1615 89.8 2280 3.9 100 1165 528.4
60 1500 67.5 1715 94.9 2410 3.9 100 1255 569.3
64 1600 68.5 1740 101.6 2580 3.9 100 1367 619.9
66 1650 69.7 1770 103.9 2640 3.9 100 1423 645.2
72 1800 74.8 1900 115.9 2945 3.9 100 1590 721.2
78 1950 79.1 2010 124.0 3150 3.9 100 1758 797.2
84 2100 87.8 2230 125.6 3190 3.9 100 1925 873.2
96 2400 94.9 2410 137.4 3490 3.9 100 2260 1025.1

NOTES: Higher back pressures can be provided by using internal vacuum supports and/or engineered Hi-Tensile reinforcement. Contact Proco.
1.  Dimensions are approximate and may change due to pipe dimensions changes, inlet, back pressures and flow rates.
2.  Larger sizes available upon request.
3.  Weights are approximate.

**The ProFlexTM Slope-Bottom Style 711 & 731 Check Valves are covered by US PATENT NUMBER 11,221,081**

Due to the wide array of uses for the Proco ProFlex™ Style 711 rubber check valves, it is recommended that you download our Series 700 Brochure to review the Frequently Asked Questions. This will ensure that you choose the proper style of check valve for your specific application.

If additional information is needed, please contact us directly.