Automatic Actuated Stainless Steel Check Valve Bolt Bonnet Type Class
Description:
Check valves are automatically actuated.they are opened and sustained in the open position by the force of velocity pressure, and closed by the force of gravity. Seating load and resultant tightness is dependent upon back pressure. The disc and associated moving parts may be in a constant state of movement if the velocity pressure is not sufficient to hold the valve in a wide open and stable position.
Cast steel swing check valves can be furnished with outside lever and adjustable weight when so ordered. With the lever and weight mounted so that the weight assistes the disc in closing, the valve closes more rapidly when flow stops, thus minimizing reversal of flow and resultant surge and shock. With the lever and weight mounted to balance the weight of the disc, the valve becomes more sensitive to low inlet velocities.
Swing check valvs are used to prevent reversal of flow in horizontal or vertical pipe lines. in Vertical lines, or for any angle from hirzontal to vertical , they can be used for upward flow only.
Specifications:
| Material of main Parts | Body/Cover | Cast Steel, Low Alloy Steel, Stainless Steel |
| Disc | Cast steel or Stainless Steel or requirement |
| Hinge | Cast steel or Stainless steel |
| Seat | A105+13%Cr or stainless steel or Stellite |
| Bolt /Nut | A193 B7/ A194 2H |
| Working Temperature | -46 to 425 Celsius degree |
| Working Medium | Water, Oil, Gas, H2SO, Steam |
Dimmension:
| SIZE | CLASS 150 | CLASS 300 |
| NPS | L | d | H | Weight (Kg) | L | d | H | Weight (Kg) |
| inch | mm | RF | RTJ | BW | RF | RTJ | BW |
| 2 | 50 | 203 | 216 | 203 | 51 | 132 | 15 | 267 | 283 | 267 | 51 | 144 | 20 |
| 21/2 | 65 | 216 | 229 | 216 | 64 | 147 | 20 | 292 | 308 | 292 | 64 | 169 | 35 |
| 3 | 80 | 241 | 254 | 241 | 76 | 176 | 27 | 318 | 333 | 318 | 76 | 210 | 40 |
| 4 | 100 | 292 | 305 | 292 | 102 | 198 | 45 | 356 | 371 | 356 | 102 | 260 | 61 |
| 5 | 125 | 330 | 343 | 330 | 127 | 255 | 58 | 400 | 416 | 400 | 127 | 295 | 80 |
| 6 | 150 | 356 | 368 | 356 | 152 | 320 | 69 | 445 | 460 | 445 | 152 | 326 | 130 |
| 8 | 200 | 495 | 508 | 495 | 203 | 380 | 131 | 533 | 549 | 533 | 203 | 380 | 190 |
| 10 | 250 | 622 | 635 | 622 | 254 | 440 | 219 | 622 | 638 | 622 | 254 | 440 | 296 |
| 12 | 300 | 699 | 711 | 699 | 305 | 480 | 321 | 711 | 727 | 711 | 305 | 520 | 450 |
| 14 | 350 | 787 | 800 | 787 | 337 | 530 | 380 | 838 | 854 | 838 | 337 | 540 | 640 |
| 16 | 400 | 864 | 876 | 864 | 387 | 580 | 560 | 864 | 879 | 864 | 387 | 588 | 850 |
| 18 | 450 | 978 | 991 | 978 | 438 | 618 | 630 | 978 | 994 | 978 | 438 | 670 | 1030 |
| 20 | 500 | 978 | 991 | 978 | 489 | 657 | 770 | 1016 | 1035 | 1016 | 489 | 720 | 1330 |
| 24 | 600 | 1295 | 1308 | 1295 | 591 | 760 | 960 | 1346 | 1368 | 1346 | 591 | 850 | 1950 |
| 26 | 650 | 1295 | — | 1295 | 633 | 840 | 1250 | 1346 | 1372 | 1346 | 633 | 920 | 2300 |
| 28 | 700 | 1448 | — | 1448 | 684 | 920 | 1580 | 1499 | 1524 | 1499 | 684 | 1150 | 2600 |
| 30 | 750 | 1524 | — | 1524 | 735 | 980 | 1950 | 1594 | 1619 | 1594 | 735 | 1260 | 3200 |
Notice: The material in this form is general information. For specific performance data and proper material selection, consult Teyi repersentative.
Competitive Advantages:
1. Our products is guaranteed within 18 months after delivery.
2. We offer free sample if interest before orders.
3. Technology renovation, process improvement, structure optimization and quality improvement.
4. Excellent after-sales service system, providing timely and optimal service, which help you to win the market.
5. Convenient shipping sea port, and standard exporting carton boxes & plywood cases.
6. 100% inspection & testing before delivery.
7. Third party inspection on customer requirement.
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Automatic Actuated Stainless Steel Check Valve Bolt Bonnet Type Class 150 Images
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