Check Valves

Products

Check Valves

AES Check Valves are designed for large pressures and industrial applications in the oil & gas, chemical, and hydroelectric power industries. We will work with customers to determine the exact specifications for each application to ensure the highest level of satisfaction. Or in-house valve design capabilities bring a level of service to the industry not often seen in other manufacturing operations.

The check valves manufactured by AES are designed to operate under flow pressure automatically without any human intervention or outside controls. They utilize a hinged movable disc that opens and closes in response to fluid. As the fluid reaches the valve, minimal pressure is required to open the valve disc, allowing the fluid to pass. When flow has stopped, the disc reseats itself making check valves the ideal choice for preventing backflow. Optional mechanical devices are available should manual or remote operation of the valve be required.

AES offers a wide array of check valves that meet the standards of both API 6A and API 6D. AES Check Valves will provide years of reliable service and smooth operation in the most difficult industrial applications. Our products are manufactured and tested in accordance with customer specifications in addition to API, ASME, and ANSI standards.


AES® Check Valves are available in a variety of metals including carbon steel, various grades of stainless steel including duplex, and virtually any metallurgy required.

Standard Material of Parts

Body Material ASTM A216 Gr.WCB
Cover Material ASTM A216 Gr.WCB
Disc Material ASTM A216 Gr.WCB + 13Cr
Disc Nut Material ASTM A194 Gr.8
Body Seat Ring Material1 ASTM A105 + HF
Cover Bolt/Nut Material ASTM A193 Gr.B7/A194 Gr.2H
Arm Material ASTM A216 Gr.WCB
Gasket Material ASTM A105
Plug Material ASTM A576 Gr.1045
1 Hard Facing with Co-Cr-W Alloy.

CLASS 150 - Cast Carbon Steel Check Valve

DIMENSIONS IN INCHES AND MILLIMETERS
Valve
Size
In 1.5 2 2.5 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30
mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750
L1 In 6.50 8.00 8.50 9.50 11.50 13.00 14.00 19.50 24.50 27.50 31.00 34.00 38.50 38.50 42.00 51.00 51.00 57.00 60.00
mm 165 203 216 241 292 330 356 495 622 698 787 864 978 978 1067 1295 1295 1448 1524
L2 In 6.50 8.00 8.50 9.50 11.50 13.00 14.00 19.50 24.50 27.50 31.00 34.00 38.50 38.50 42.00 51.00 51.00 57.00 60.00
mm 165 203 216 241 292 330 356 495 622 698 787 864 978 978 1067 1295 1295 1448 1524
H In 5.3 6.0 6.7 7.1 7.9 9.25 9.8 11.6 13.2 14.5 16.3 18.1 20.1 21.7 23.0 24.8 26.8 28.2 29.9
mm 135 152 170 180 200 235 250 295 334 368 415 460 510 550 585 630 680 716 760
 

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CLASS 300 - Cast Carbon Steel Check Valve

Valve
Size
In 1.5 2 2.5 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30
mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750
L1 In 9.50 10.50 11.50 12.50 14.00 15.75 17.50 21.00 24.50 28.00 33.00 34.00 38.50 40.00 - 53.00 - 59.00 62.75
mm 241 267 292 318 356 400 444 533 622 711 838 864 978 1016 - 1346 - 1499 1594
L2 In 9.50 10.50 11.50 12.50 14.00 15.75 17.50 21.00 24.50 28.00 33.00 34.00 38.50 40.00 - 53.00 - 59.00 62.75
mm 241 267 292 318 356 400 444 533 622 711 838 864 978 1016 - 1346 - 1499 1594
H In 5.5 6.5 7.5 8.7 8.9 9.8 10.7 13.0 14.2 16.0 18.9 21.1 22.6 24.8 - 31.7 - 36.6 38.4
mm 140 165 190 205 225 250 272 300 360 406 480 535 575 630 - 805 - 930 975
 

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CLASS 600 - Cast Carbon Steel Check Valve

Valve
Size
In 1.5 2 2.5 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30
mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750
L1 In - 11.50 13.00 14.00 17.00 - 22.00 26.00 31.00 33.00 35.00 39.00 43.00 47.00 - 55.00 - - -
mm - 292 330 356 432 - 559 660 787 838 889 991 1092 1194 - 1397 - - -
L2 In - 11.50 13.00 14.00 17.00 - 22.00 26.00 31.00 33.00 35.00 39.00 43.00 47.00 - 55.00 - - -
mm - 292 330 356 432 - 559 660 787 838 889 991 1092 1194 - 1397 - - -
H In - 7.1 7.8 8.7 10.1 - 12.4 14.0 16.3 17.7 21.9 23.7 25.0 27.8 - 33.7 - - -
mm - 180 197 220 256 - 318 356 415 450 556 601 635 707 - 856 - - -
 

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CLASS 900 - Cast Carbon Steel Check Valve

Valve
Size
In 1.5 2 2.5 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30
mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750
L1 In - - - 15.00 18.00 - 24.00 29.00 33.00 38.00 40.50 44.50 - - - - - - -
mm - - - 381 457 - 610 737 838 965 1029 1130 - - - - - - -
L2 In - - - 15.00 18.00 - 24.00 29.00 33.00 38.00 40.50 44.50 - - - - - - -
mm - - - 381 457 - 610 737 838 965 1029 1130 - - - - - - -
H In - - - 11.5 13.6 - 17.5 20.7 24.4 28.3 31.3 34.6 - - - - - - -
mm - - - 292 346 - 444 526 620 720 794 880 - - - - - - -
 

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CLASS 1500 - Cast Carbon Steel Check Valve

Valve
Size
In 1.5 2 2.5 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30
mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750
L1 In - 14.50 16.50 18.50 21.50 - 27.75 32.75 39.00 44.50 - - - - - - - - -
mm - 368 419 470 546 - 705 832 991 1130 - - - - - - - - -
L2 In - 14.50 16.50 18.50 21.50 - 27.75 32.75 39.00 44.50 - - - - - - - - -
mm - 368 419 470 546 - 705 832 991 1130 - - - - - - - - -
H In - 11.4 12.4 13.7 15.4 - 20.3 25.6 29.00 34.4 - - - - - - - - -
mm - 290 316 347 391 - 515 650 737 875 - - - - - - - - -
 

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CLASS 2500 - Cast Carbon Steel Check Valve

Valve
Size
In 1.5 2 2.5 3 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30
mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 550 600 650 700 750
L1 In - 17.75 20.00 22.75 26.50 - 36.00 - - - - - - - - - - - -
mm - 451 508 578 673 - 914 - - - - - - - - - - - -
L2 In - 17.75 20.00 22.75 26.50 - 36.00 - - - - - - - - - - - -
mm - 451 508 578 673 - 914 - - - - - - - - - - - -
H In - 13.2 15.2 15.7 17.7 - 22.8 - - - - - - - - - - - -
mm - 335 385 400 450 - 580 - - - - - - - - - - - -
 

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