Van cổng bằng thép rèn tự đóng kín
Self-sealing forged steel gate valve is designed for high-pressure and high-temperature water, steam and oil pipelines. Its pressure-seal bonnet improves sealing reliability as internal pressure increases. The valve is available with bolted flange, RTJ and butt-welded connection options.
Mô tả
Van cổng bằng thép rèn tự đóng kín
The self-sealing forged steel gate valve is designed for high-pressure and
high-temperature industrial pipeline service. Its pressure-seal bonnet design
uses internal pressure to improve the sealing force between the bonnet and the
valve body. As the pressure increases, the sealing performance becomes more
reliable.
The valve is suitable for water, steam and oil products. It is available with
forged carbon steel, alloy steel and stainless steel materials, as well as
flanged, RTJ and butt-welded connection options. The valve provides reliable
isolation with low flow resistance when fully open.
Các tiêu chuẩn áp dụng
| Mặt hàng | Tiêu chuẩn |
|---|---|
| Các chiều kích trong giao tiếp trực tiếp | ASME B16.10 |
| End Flange Dimensions | ASME B16.5 |
| Basic Design | API 600 |
| Kiểm tra và Thử nghiệm | API 598 |
Main Parts and Materials
| No. | Part Name | Qty. | Chất liệu |
|---|---|---|---|
| 1 | Body | 1 | WCB |
| 2 | Chỗ ngồi | 2 | A105 + HF |
| 3 | Wedge | 1 | WCB + F6 |
| 4 | Thân | 1 | A182 F6 |
| 5 | Gasket | 1 | 08F stainless steel + flexible graphite |
| 6 | Bonnet | 1 | WCB |
| 7 | Back Seat | 1 | A276 410 |
| 8 | Đóng gói | 1 | Stainless steel wire with flexible graphite |
| 9 | Đóng gói | 4–5 | 22 |
| 10 | Distance Ring | 1 | A276 410 |
| 11 | Gland | 1 | A276 410 |
| 12 | Gland Flange | 1 | WCB |
| 13 | Stem Nut | — | D-2 |
| 14 | Gland Nut | 1 | 1035 |
| 15 | Handwheel | 1 | 60-40-189 |
| 16 | Lock Nut | 1 | A29 1035 |
| 17 | Oil Filler | 1 | A570 Gr. A |
| 18 | Eyebolt | 2 | A193 B7 |
| 19 | Eyebolt Nut | 2 | A194 2H |
| 20 | Pin | 2 | A29 1035 |
| 21 | Split Pin | 2 | A570 Gr. A |
| 22 | Stud | — | A193 B7 |
| 23 | Nut | — | A194 2H |
| 24 | Rivet | 2 | 304 stainless steel |
| 25 | Nameplate | 1 | 304 stainless steel |
Main Connection Dimensions and Weight
| NPS | 2 | 2-1/2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
|---|---|---|---|---|---|---|---|---|---|---|
| d (mm) | 47 | 57 | 73 | 98 | 146 | 190 | 238 | 282 | 311 | 356 |
| L-L1 BF/BW (mm) | 368 | 419 | 381 | 457 | 610 | 737 | 838 | 965 | 1029 | 1130 |
| L2 RTJ (mm) | 371 | 422 | 384 | 460 | 613 | 741 | 841 | 968 | 1038 | 1140 |
| d1 (mm) | 92 | 105 | 127 | 157 | 216 | 270 | 324 | 381 | 413 | 470 |
| d2 (mm) | 165 | 190.5 | 190.5 | 234.9 | 317.5 | 393.7 | 469.9 | 533.4 | 558.8 | 615.9 |
| D (mm) | 216 | 244 | 241 | 292 | 381 | 470 | 545 | 610 | 640 | 705 |
| b (mm) | 38.5 | 41.5 | 38.5 | 44.5 | 56 | 63.5 | 70 | 79.5 | 86 | 89 |
| n-Φd | 8-26 | 8-29 | 8-26 | 8-32 | 12-32 | 12-39 | 16-39 | 20-39 | 20-42 | 20-45 |
| H Open (mm) | 547 | 700 | 648 | 720 | 1011 | 1200 | 1590 | 1795 | 2025 | 2170 |
| W (mm) | 300 | 350 | 400 | 450 | 560 | 460* | 610* | 610* | 760* | 760* |
| Weight BF (kg) | 90 | 110 | 123 | 148 | 420 | 650 | 1160 | 1700 | 2300 | 2750 |
| Weight BW (kg) | 82 | 95 | 108 | 122 | 359 | 566 | 980 | 1450 | 2000 | 2390 |
Các ứng dụng điển hình
- Steam pipeline isolation
- Water and oil product pipelines
- Power generation systems
- Petrochemical plants
- High-pressure industrial pipeline systems
Other materials are available according to customer requirements. The sealing material combination is determined by the specified trim code. CS means carbon steel, AS means alloy steel and SS means stainless steel.
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