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ProFlex™ Style 710

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

For more information about the features and benefits of the Proco ProFlex™ Style 710 rubber duckbill check valve, download our brochure.

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

All Proco Series 700 ProFlex™ rubber duckbill 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™ rubber duckbill 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™ rubber duckbill check valves are precisely manufactured to ensure proper operation, and will provide years of unhindered, trouble-free service.

Available Styles & Materials

For Specific Elastomer Recommendations, See: PROCO "Chemical To Elastomer Guide"
PROCO Material Code Cover 1,2 Elastomer Tube Elastomer Maximum Operating Temp. °F (°C)
BB Chlorobutyl Chlorobutyl 250 °F (121°C)
EE EPDM EPDM 250 °F (121°C)
NH CSM 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 710
Diameter Standard Valve Dimensions Standard Drilling ANSI 125/150# Approx. Weight
Length Duckbill Height Flange OD Bolt Circle Diameter No. Bolt Holes Size of  Bolt Holes
in. mm in. mm in. mm in. mm in. mm in. mm lbs kgs
1 25 5.1 130 2.4 62 4.25 108 3.125 79 4 0.625 15.9 3 1.5
1.5 40 6.0 153 3.2 82 5.00 127 3.875 98 4 0.625 15.9 3 1.6
2 50 6.6 168 3.8 97 6.00 152 4.75 121 4 0.750 19.1 4 1.7
2.5 65 7.4 188 4.8 122 7.00 178 5.50 140 4 0.750 19.1 5 2.4
3 80 8.5 216 5.6 142 7.50 191 6.00 152 4 0.750 19.1 6 2.7
4 100 10.5 267 6.9 174 9.00 229 7.50 191 8 0.750 19.1 9 3.9
5 125 11.5 293 9.0 228 10.00 254 8.50 216 8 0.875 22.2 14 6.5
6 150 12.8 326 10.6 268 11.00 279 9.50 241 8 0.875 22.2 15 6.7
8 200 15.0 380 13.7 348 13.50 343 11.75 298 8 0.875 22.2 24 10.7
10 250 17.9 455 16.9 428 16.00 406 14.25 362 12 1.000 25.4 31 14.2
12 300 20.3 515 20.6 522 19.00 483 17.00 432 12 1.000 25.4 51 23.1
14 350 22.8 580 23.7 601 21.00 533 18.75 476 12 1.125 28.6 75 34.2
16 400 24.2 615 27.3 693 23.50 597 21.25 540 16 1.125 28.6 93 42.0
18 450 27.2 690 30.6 778 25.00 635 22.75 578 16 1.250 31.8 104 47.1
20 500 28.4 722 32.6 828 27.50 699 25.00 635 20 1.250 31.8 128 58.0
24 600 38.7 983 38.0 964 32.00 813 29.50 749 20 1.375 34.9 203 92.0
28 700 41.1 1045 45.3 1151 36.50 927 34.00 864 28 1.375 34.9 243 110.0
30 750 43.5 1105 49.4 1254 38.75 984 36.00 914 28 1.375 34.9 300 136.3
32 800 44.5 1130 51.0 1295 41.75 1060 38.50 978 28 1.625 41.3 368 167.0
36 900 53.9 1370 59.5 1512 46.00 1168 42.75 1086 32 1.625 41.3 559 253.6
40 1000 53.9 1370 65.8 1671 50.75 1289 47.25 1200 36 1.625 41.3 697 316.3
42 1050 55.7 1415 67.9 1725 53.00 1346 49.50 1257 36 1.625 41.3 744 337.3
48 1200 63.2 1605 76.2 1935 59.50 1511 56.00 1422 44 1.625 41.3 1019 462.3
54 1350 67.9 1725 84.3 2140 66.25 1683 62.75 1594 44 2.000 50.8 1349 611.7
60 1500 73.8 1874 85.4 2170 73.00 1854 69.25 1759 52 2.000 50.8 1598 725.0
64 1600 76.8 1950 89.8 2280 78.00 1981 74.00 1880 52 2.000 50.8 2069 938.5
66 1650 79.9 2030 92.9 2360 80.00 2032 76.00 1930 52 2.000 50.8 2304 1045.2
72 1800 87.3 2217 112.9 2868 86.50 2197 82.50 2096 60 2.000 50.8 2811 1275.1
78 1950 88.0 2234 113.6 2885 93.00 2362 89.00 2261 64 2.125 54.0 3265 1480.8
84 2100 90.2 2290 117.7 2990 99.75 2534 95.50 2426 64 2.25 57.2 3718 1686.5
96 2400 97.2 2470 127.6 3240 113.25 2877 108.50 2756 68 2.5 63.5 4625 2097.9

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.

Due to the wide array of uses for the Proco ProFlex™ Style 710 rubber duckbill check valves, it is recommended that you download our ProFlex™ Style 710 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.