
Pn6-Pn10-Pn16-Pn25-Class125-Class150 Double Flanged Double Offset Eccentric Butterfly Valve with Pneumatic Electric Actuator Gate Check Valves
Product Introduction
Facing new challenges in the future market, all our employees will continue to carry forward a professional, efficient, enthusiastic and thoughtful work style, and provide customers with reliable and high-quality Stainless Steel Flange Slip On Weld Neck, Flanged Vertical Check Valve, Pneumatic Sanitary Welded Butterfly Valve and timely services. We have always attached great importance to the cultivation of science and technology and talents, and have long-term cooperative relations with Zhejiang University and other famous universities and scientific research institutions. Our company through technological innovation to shorten the production cycle of products, improve productivity.
Main Connection Dimensions
Test Item | Shell Test | Seal Test | Back Seal Test | Air Seal Test | |||||
Medium | Water | Air | |||||||
Unit | MPa | Ibf/in2 | MPa | Ibf/in2 | MPa | Ibf/in2 | MPa | Ibf/in2 | |
Pressure (Class) | 150 | 3.1 | 450 | 2.2 | 315 | 2.2 | 315 | 0.5-0.7 | 60-100 |
300 | 7.8 | 1125 | 5.6 | 815 | 5.6 | 815 | |||
400 | 10.3 | 1500 | 7.6 | 1100 | 7.6 | 1100 | |||
600 | 15.3 | 2225 | 11.2 | 1630 | 11.2 | 1630 | |||
900 | 23.1 | 3350 | 16.8 | 2440 | 16.8 | 2440 | |||
1500 | 38.4 | 5575 | 28.1 | 4080 | 28.1 | 4080 | |||
Materials for Main Parts
Name | Material | ||||||||
Body Bonnet Wedge Arm Yoke | A216 WCB | A352 LCB | A217 WC6 | A217 WC9 | A217 C5 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
Arm Pin | A182 F6 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | ||||
Bonnet Bolt | A193-B7 A320-L7 A193-B8 | ||||||||
Nut | A194-2H A194-7 A194-8 | ||||||||
Type | Size(mm) | Dimension(mm) | |||||||
Inch | DN | L | D | Dl | D2 | b | z-ød | H | |
H H44W-150Lb Y
| 1" | 25 | 127 | 108 | 79.5 | 51 | 12 | 4-ø5 | 90 |
11/2" | 40 | 165 | 127 | 98.5 | 73 | 15 | 4-ø15 | 115 | |
2" | 50 | 203 | 152 | 120.7 | 92 | 16 | 4-ø19 | 150 | |
21/2" | 65 | 216 | 177.8 | 139.7 | 104.7 | 18 | 4-ø19 | 160 | |
3" | 80 | 241 | 190.5 | 152.4 | 127 | 19 | 4-ø19 | 180 | |
4" | 100 | 292 | 229 | 190.5 | 157 | 24 | 8-ø19 | 220 | |
5" | 125 | 330 | 254 | 216 | 185.7 | 26 | 8-ø22 | 280 | |
6" | 150 | 356 | 279 | 241.3 | 216 | 26 | 8-ø22 | 340 | |
8" | 200 | 495 | 343 | 298.5 | 270 | 29 | 8-ø22 | 400 | |
10" | 250 | 622 | 406 | 362 | 324 | 31 | 12-ø25 | 460 | |
12" | 300 | 698 | 483 | 432 | 381 | 32 | 12-ø25 | 530 | |
14" | 350 | 787 | 533 | 476.3 | 413 | 35 | 12-ø29 | 580 | |
16" | 400 | 864 | 597 | 540 | 470 | 37 | 16-ø29 | 600 | |
18" | 450 | 978 | 635 | 578 | 533.4 | 40 | 16-ø32 | 650 | |
20" | 500 | 978 | 698.5 | 635 | 584 | 43 | 20-ø32 | 700 | |
24" | 600 | 1295 | 813 | 749.3 | 692 | 48 | 20-ø35 | 780 | |
28" | 700 | 1448 | 927 | 863.6 | 800 | 72 | 28-ø35 | 850 | |
30" | 800 | 1524 | 984 | 914.4 | 857 | 75 | 28-ø35 | 920 | |
H H44W-300Lb Y | 2" | 50 | 267 | 165 | 127 | 92 | 23 | 8-ø19 | 170 |
21/2" | 65 | 292 | 190.5 | 149.4 | 104.7 | 26 | 8-ø22 | 180 | |
3" | 80 | 318 | 210 | 168.2 | 127 | 29 | 8-ø22 | 210 | |
4" | 100 | 356 | 254 | 200.2 | 157 | 32 | 8-ø22 | 290 | |
5" | 125 | 400 | 279 | 235 | 185.7 | 35 | 8-ø22 | 290 | |
6" | 150 | 444 | 318 | 270 | 216 | 37 | 12-ø22 | 350 | |
8" | 200 | 533 | 381 | 330 | 270 | 42 | 12-ø25 | 430 | |
10" | 250 | 622 | 445 | 387.5 | 324 | 48 | 16-ø29 | 480 | |
12" | 300 | 711 | 521 | 451 | 381 | 51 | 16-ø32 | 550 | |
14" | 350 | 838 | 584 | 514.5 | 413 | 54 | 20-ø32 | 620 | |
16" | 400 | 864 | 648 | 571.5 | 470 | 58 | 20-ø35 | 650 | |
18" | 450 | 978 | 711 | 628.7 | 533.4 | 61 | 24-ø35 | 690 | |
20" | 500 | 1016 | 775 | 685.8 | 584 | 64 | 24-ø35 | 740 | |
24" | 600 | 1346 | 914.4 | 812.8 | 692 | 70 | 24-ø41 | 800 | |
28" | 700 | 1499 | 1035 | 939.8 | 800 | 86 | 28-ø45 | 860 | |
30" | 800 | 1594 | 1092 | 997 | 857 | 92 | 28-ø48 | 980 | |
H H44W-600Lb Y | 2" | 50 | 292 | 165 | 127 | 92 | 26 | 8-ø19 | 190 |
21/2" | 65 | 330 | 190.5 | 149.4 | 104.7 | 29 | 8-ø22 | 210 | |
3" | 80 | 356 | 210 | 168.2 | 127 | 32 | 8-0>22 | 230 | |
4" | 100 | 432 | 273 | 216 | 157 | 38 | 8-ø25 | 300 | |
5" | 125 | 508 | 330 | 266.7 | 185.7 | 45 | 8-ø29 | 310 | |
6" | 150 | 559 | 356 | 292 | 216 | 48 | 12-ø29 | 370 | |
8" | 200 | 660 | 419 | 349 | 270 | 56 | 12-ø32 | 450 | |
10" | 250 | 787 | 508 | 432 | 324 | 64 | 16-ø35 | 500 | |
12" | 300 | 838 | 559 | 489 | 381 | 67 | 20-ø35 | 570 | |
14" | 350 | 889 | 603 | 527 | 413 | 70 | 20-ø38 | 640 | |
16" | 400 | 991 | 686 | 603 | 470 | 77 | 20-ø41 | 670 | |
18" | 450 | 1092 | 743 | 654 | 533.4 | 83 | 20-ø44 | 710 | |
20" | 500 | 1194 | 855 | 724 | 584 | 89 | 24-ø44 | 760 | |
24" | 600 | 1397 | 1040 | 838 | 692 | 102 | 24-ø52 | 830 | |
H H44W-900Lb Y | 2" | 50 | 368 | 216 | 165.1 | 92 | 38.5 | 8-ø26 | 220 |
21/2" | 65 | 419 | 244 | 190.5 | 104.7 | 41.5 | 8-ø29 | 250 | |
3" | 80 | 381 | 241 | 190.5 | 127 | 38.5 | 8-ø26 | 270 | |
4" | 100 | 457 | 292 | 234.9 | 157 | 44.5 | 8-ø32 | 330 | |
5" | 125 | 559 | 349 | 279.4 | 185.7 | 51 | 8-ø35 | 350 | |
6n | 150 | 610 | 384 | 317.5 | 216 | 56 | 12-ø32 | 420 | |
8" | 200 | 737 | 470 | 393.7 | 270 | 63.5 | 12-ø39 | 490 | |
10" | 250 | 838 | 545 | 469.9 | 324 | 70 | 16-ø39 | 550 | |
12" | 300 | 965 | 610 | 533.4 | 381 | 79.5 | 20-ø39 | 630 | |
14" | 350 | 1029 | 640 | 558.8 | 413 | 86 | 20-ø42 | 680 | |
16" | 400 | 1130 | 705 | 615.9 | 470 | 89 | 20-ø45 | 720 | |
18" | 450 | 1219 | 785 | 685.8 | 533.4 | 102 | 20-ø51 | 750 | |
20" | 500 | 1321 | 855 | 749.3 | 584 | 108 | 20-ø54 | 800 | |
24" | 600 | 1549 | 1040 | 901.7 | 692 | 140 | 20-ø67 | 880 | |

Standards
Design and manufacture as BS1868fANSI B16.34 Fane to face dimensions as ANSI B16.10
End flange dimenision as ANSI B16.5 Pressure-temperature rating as ANSI B16.34 Pressure test as API 598
Product Description:
Design and manufacture standard: API 6D
Structural length standard: ASME B 16.10
Connecting flange standard: ASME B 16.5
Pressure and temperature class: ASME B 16.34
Test and inspection standard: API 698

Structural features:
The disc of check valve is disc-shaped and rotates around the axis of the seat channel. Because the channel in the valve is linear and the flow resistance is smaller than that of the rising butterfly check valve, it is suitable for large-diameter occasions with low flow rate and constant flow change, but it is not suitable for pulsating flow, and its sealing performance is inferior to that of the rising butterfly check valve.
check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself, which is used to prevent the medium from back flow. It is also called check valve, one-way valve, counter flow valve and back pressure valve. The main function is to prevent the medium back flow, to prevent the pump and drive motor reverse, and to discharge the container medium. The check valve can also be used to supply the auxiliary system whose pressure may rise above the system pressure. Check valve can be divided into swing check valve (rotating according to the center of gravity) and lift check valve (moving along the axis).
The function of this type of valve is only to allow the medium to flow in one direction, and to prevent the flow in one direction. Usually, this kind of valve works automatically. Under the action of fluid pressure flowing in one direction, the valve disc opens; when the fluid flows in the opposite direction, the fluid pressure and the dead weight of the valve disc act on the valve seat, thus cutting off the flow.
Application scope of American standard check valve:
American standard check valve is used in industrial pipeline as a device to prevent reverse flow of medium.
Price:
Our price fluctuates with raw materials and exchange rate.Please leave your contact information and give you a new quotation as soon as possible.
Packing:
wooden case, wooden pallet or packing method specified by customers.
With the summary of our own production experience and the continuous absorption of advanced experience, we have the ability to produce high-quality Pn6-Pn10-Pn16-Pn25-Class125-Class150 Double Flanged Double Offset Eccentric Butterfly Valve with Pneumatic Electric Actuator Gate Check Valves. Our company has a strong relationship network and complete technology and staffing, can provide customers with abundant supply of goods and high-quality, convenient and efficient service. With the unremitting efforts of our company, the output of our company has been greatly improved, and the production technology has been developing steadily.
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