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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, download this PDF information sheet

**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 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.

**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) Branding Label Color F.S.A. Material Class
BB Chlorobutyl Chlorobutyl 250 °F (121°C) STD. III
EE EPDM EPDM 250 °F (121°C) STD. III
NH Neoprene CSM 212 °F (100°C) STD. II
NN Neoprene Neoprene 225 °F (107°C) STD. II
NN-NSF61 Neoprene Neoprene 225 °F (107°C) STD. II
NR Neoprene Natural Rubber 180 °F (82°C) STD. I

Notes:

ProFlexTM is a trademark of PROCO Products, Inc.
All products are reinforced with polyester tire cord.
1.  Check Valve “cover” can be CSM coated on special order.
2.  Styles with Neoprene covers meet all requirements of U.S.C.G.
3.  NSF/ANSI Standard 61 certified materials available upon request.
4.  The ProFlex™ Slope-Bottom Style 711 & 731 Check Valves are covered by US PATENT NUMBER 11,221,081.

Table X: Sizes – Flange Drilling – Weights

NOMINAL PIPE SIZE
Inch / (mm)

Style Standard Dimensions Weight3
lbs / (kgs)
Length in./(mm) Duck Bill Height
in./(mm)
Eccentric Slope “ES” in./(mm)
12 (300) 711 24.0 (609) 23.6 (600) 2.0 (50) 53 (24)
731 25.9 (659) 59 (26.8)
14 (350) 711 25.9 (659) 26.4 (670) 2.0 (50) 64 (29)
731 29.9 (759) 76 (34.5)
16 (400) 711 27.9 (709) 29.9 (760) 2.0 (50) 93 (42.2)
731 31.9 (809) 90 (40.8)
18 (450) 711 29.7 (754) 33.1 (840) 2.0 (50) 135 (61.2)
731 33.6 (854) 130 (59)
20 (500) 711 31.7 (804) 36.2 (920) 2.0 (50) 155 (70.3)
731 37.5 (952) 200 (90.7)
24 (600) 711 37.6 (955) 42.9 (1090) 2.0 (50) 235 (106.6)
731 43.3 (1100) 215 (97.5)
30 (750) 711 45.7 (1160) 54.7 (1390) 3.0 (75) 565 (256.3)
731 51.7 (1314) 460 (208.7)
36 (900) 711 52.8 (1340) 65.7 (1670) 3.0 (75) 725 (328.9)
731 59.4 (1510) 585 (265.4)
42 (1050) 711 54.3 (1380) 70.1 (1780) 3.0 (75) 915 (415)
731 61.0 (1550) 1075 (487.6)
48 (1200) 711 62.2 (1580) 80.7 (2050) 4.0 (100) 1035 (469.5)
731 66.1 (1680) 1350 (612.3)
54 (1350) 711 65.0 (1650) 86.6 (2200) 4.0 (100) 1165 (528.4)
731 68.9 (1750) 1630 (739.4)
60 (1500) 711 66.9 (1700) 94.5 (2400) 4.0 (100) 1255 (569.3)
731 73.0 (1855) 1715 (777.9)
72 (1800) 711 76.8 (1950) 114.2 (2900) 4.0 (100) 1590 (721.2)
731 82.9 (2105) 1900 (861.8)

Notes:

  1. Style 711 available drilled to required flange specifications (ANSI 150, ANSI 300, DIN PN10, DIN PN16, Custom Flange Specification)
  2. Style 731 available in various size Cuff ID’s to meet required pipe OD’s
  3. Weights listed 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.