zhejiang teyi valve co.,ltd.
| Payment Terms | L/C; T/T, Westem Union |
| Supply Ability | 500pcs per month |
| Delivery Time | 7-15 Work days |
| Packaging Details | Packed in woven bag firstly, and then reinforced with wooden case for outer packing |
| Product Name | Flange Swing Check valve |
| Size | 2inch to 24inch |
| Pressure | Class300 |
| Design Standard | API 6D/ BS1868 |
| Flange Dimmension | ASME B16.5 |
| Face To Face | ASME B16.10 |
| Pressure-Temperature | ASME B16.34 |
| Inspection Standard | API 6D/ API598 |
| Brand Name | TEYI |
| Model Number | H44H |
| Certification | ISO/API 6D/CE/TS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C; T/T, Westem Union | Supply Ability | 500pcs per month |
| Delivery Time | 7-15 Work days | Packaging Details | Packed in woven bag firstly, and then reinforced with wooden case for outer packing |
| Product Name | Flange Swing Check valve | Size | 2inch to 24inch |
| Pressure | Class300 | Design Standard | API 6D/ BS1868 |
| Flange Dimmension | ASME B16.5 | Face To Face | ASME B16.10 |
| Pressure-Temperature | ASME B16.34 | Inspection Standard | API 6D/ API598 |
| Brand Name | TEYI | Model Number | H44H |
| Certification | ISO/API 6D/CE/TS | Place of Origin | China |
| High Light | flange type check valve ，water supply check valve | ||
API6D Oil / Gas Stainless Steel Check Valve 20'' Flange Type ANSI 300LB
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 or low-temperature carbon 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 |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1988
Total Annual:
4000000-7000000
Ecer Certification：
Active Member
ZHEJLANG TEYL VALVE CO.,LTD.was founded in 1988,with many years of history In valve production,We specialize in scientific research,designing manufacturing,sales and service.The company IS located in Longwan District which has been regarded as “China Valves City”and“China Sta... ZHEJLANG TEYL VALVE CO.,LTD.was founded in 1988,with many years of history In valve production,We specialize in scientific research,designing manufacturing,sales and service.The company IS located in Longwan District which has been regarded as “China Valves City”and“China Sta...
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