Van cổng bằng thép rèn Z41H có đầu bích
Flanged-end forged steel gate valve is designed for reliable isolation in high-pressure and high-temperature water, steam, oil and chemical pipelines. It is available with RF, RTJ and butt-welded connections in ANSI Class 150, 300, 600, 900 and 1500 configurations.
Mô tả
Flanged-End Forged Steel Gate Valve
The flanged-end forged steel gate valve is designed for reliable isolation
service in high-pressure and high-temperature industrial pipelines. The valve
is available with raised-face or ring-type-joint flanged connections and
butt-welded ends.
Forged carbon steel, alloy steel and stainless steel materials are available
for water, steam, oil products, nitric acid, acetic acid and other industrial
media. The gate provides low flow resistance when fully open and reliable
shut-off performance when fully closed.
Main Features
- Forged steel body with high mechanical strength.
- Available with RF, RTJ and butt-welded connections.
- Low flow resistance in the fully open position.
- Reliable shut-off performance for industrial pipelines.
- Carbon steel, alloy steel and stainless steel options.
- Flexible graphite or PTFE packing options.
- Suitable for high-pressure and high-temperature service.
- Other materials can be supplied according to customer requirements.
Standard Materials
| No. | Part Name | Thép cacbon ASTM | Thép hợp kim ASTM | Stainless Steel 304 ASTM | Stainless Steel 316 ASTM |
|---|---|---|---|---|---|
| 1 | Thân van | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | Chỗ ngồi | A276 420 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | Gate | A276 410 & 430 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 4 | Thân | A182 F6 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 5 | Gasket | 316 stainless steel with flexible graphite | 316 stainless steel with PTFE | — | — |
| 6 | Bonnet | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 7 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 8 | Pin | A276 420 | A276 304 | — | — |
| 9 | Packing Sleeve | A276 410 | A182 F304(L) | A182 F316(L) | — |
| 10 | Eyebolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 11 | Packing Plate | A105 | A182 F11 | A182 F304(L) | A182 F316(L) |
| 12 | Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 13 | Stem Nut | A276 410 | — | — | — |
| 14 | Lock Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| 15 | Nameplate | Thép không gỉ | — | — | — |
| 16 | Handwheel | A197 | — | — | — |
| 17 | Lubricating Washer | A473 431 | — | — | — |
| 18 | Đóng gói | Graphite dẻo | PTFE | — | — |
Applicable Media and Temperature
| Material Group | Applicable Media | Phạm vi nhiệt độ |
|---|---|---|
| Thép cacbon | Water, steam and oil products | -29°C to +425°C |
| Thép hợp kim | Water, steam and oil products | -29°C to +550°C |
| Thép không gỉ | Nitric acid, acetic acid and other selected media | -29°C to +180°C |
Dimensions and Weight — ANSI Class 150, 300 and 600
| NPS | Face-to-Face Length L (mm) | Opening Height H (mm) | W | Weight (kg) | ||||
|---|---|---|---|---|---|---|---|---|
| Class 150 RF | Class 300 RF | Class 600 RF | Class 150–300 | Loại 600 | RF | BW | ||
| 1/2 | 108 | 140 | 165 | 158 | 169 | 100 | 4.5 / 4.8 / 5.9 | 2.8 / 3.5 / 4.5 |
| 3/4 | 117 | 152 | 190 | 169 | 197 | 100 | 5.2 / 6.2 / 7.4 | 3.3 / 4.4 / 5.1 |
| 1 | 127 | 165 | 216 | 197 | 236 | 125 | 8.2 / 9.3 / 10.4 | 5.4 / 6.8 / 8.2 |
| 1-1/4 | 140 | 178 | 229 | 236 | 246 | 160 | 11.5 / 14.0 / 16.2 | 7.1 / 8.1 / 10.5 |
| 1-1/2 | 165 | 190 | 241 | 246 | 283 | 160 | 12.5 / 15.5 / 17.5 | 8.2 / 9.2 / 12.4 |
| 2 | 203 | 216 | 292 | 283 | 320 | 180 | 20.3 / 23.4 / 28.3 | 12.5 / 15.4 / 20.1 |
Dimensions and Weight — ANSI Class 900 to 1500
| NPS | L (RTJ) mm | L1 (BW) mm | H Open (mm) | W | RTJ Weight (kg) | BW Weight (kg) |
|---|---|---|---|---|---|---|
| 1/2 | 216 | 216 | 197 | 125 | 7.2 | 5.2 |
| 3/4 | 229 | 229 | 197 | 125 | 11.5 | 9.3 |
| 1 | 254 | 254 | 236 | 160 | 15.6 | 12.4 |
| 1-1/4 | 279 | 279 | 246 | 160 | 16.2 | 13.8 |
| 1-1/2 | 305 | 305 | 283 | 180 | 22.6 | 18.9 |
| 2 | 371 | 368 | 330 | 200 | 32.8 | 27.5 |
Các ứng dụng điển hình
- Steam and condensate pipelines
- Water supply systems
- Oil and petrochemical pipelines
- Power generation plants
- Chemical processing systems
- High-pressure industrial pipeline isolation
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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