Metal Gate Valve Z41W-25P GB stainless steel flange gate valve 304
First, the main outline of Z41W stainless steel gate valve:
The high and medium pressure stainless steel flange gate valve is suitable for cutting and connecting the pipeline medium on the pipelines of various systems of petroleum, chemical, hydraulic and thermal power stations with nominal pressure PN1.6～16.0MPa and working temperature ≤-29°C～550°C.
Applicable medium: water, oil, steam, and acid, alkali, ammonia, urea, sulfur-containing natural gas, etc.
Second, Z41W stainless steel gate valve structure features:
1. The selection of materials is in line with relevant domestic and international standards, and the overall quality of materials is high.
2. It meets the requirements of advanced standards at home and abroad, with reliable sealing, excellent performance and beautiful appearance.
3. The sealing pair is advanced and reasonable. The sealing surfaces of the ram and the valve seat are made of Stellite cobalt-based hard alloy with different hardness. The sealing is reliable, high hardness, wear resistance, high temperature resistance and corrosion resistance. Good anti-scratch performance and long life.
4. The valve stem is quenched and tempered and surface nitrided, which has good corrosion resistance, scratch resistance and wear resistance.
5, the use of wedge-type elastic ram structure, medium and large caliber thrust bearing, small friction, and equipped with impact hand wheel, easy to open and close.
6, can use a variety of piping flange standards and flange sealing surface form to meet various engineering needs and user requirements.
| Model | Nominal diameter | Size(mm) |
| L | D | D1 | D2 | b-f | z-Φd | H | D0 |
| Z41W-1.6MPa | 15 | 130 | 95 | 65 | 45 | 14-2 | 4-14 | 170 | 120 |
| 20 | 150 | 105 | 75 | 55 | 14-2 | 4-14 | 200 | 120 |
| 25 | 160 | 115 | 85 | 65 | 14-2 | 4-14 | 215 | 140 |
| 32 | 180 | 135 | 100 | 78 | 16-2 | 4-18 | 260 | 160 |
| 40 | 200 | 145 | 110 | 85 | 16-3 | 4-18 | 290 | 200 |
| 50 | 250 | 160 | 125 | 100 | 16-3 | 4-18 | 345 | 220 |
| 65 | 265 | 180 | 145 | 120 | 18-3 | 4-18 | 360 | 240 |
| 80 | 280 | 195 | 160 | 135 | 20-3 | 8-18 | 385 | 280 |
| 100 | 300 | 215 | 180 | 155 | 20-3 | 8-18 | 430 | 300 |
| 125 | 325 | 245 | 210 | 185 | 22-3 | 8-18 | 520 | 320 |
| 150 | 350 | 280 | 240 | 210 | 24-3 | 8-23 | 610 | 350 |
| 200 | 400 | 335 | 295 | 265 | 26-3 | 12-23 | 765 | 400 |
| 250 | 450 | 405 | 355 | 320 | 30-3 | 12-25 | 895 | 450 |
| 300 | 500 | 460 | 410 | 375 | 30-4 | 12-25 | 1145 | 500 |
| 350 | 550 | 520 | 470 | 435 | 34-4 | 16-25 | 1200 | 550 |
| 400 | 600 | 580 | 525 | 485 | 36-4 | 16-30 | 1400 | 600 |
| 450 | 650 | 640 | 585 | 545 | 40-4 | 20-30 | 1500 | 650 |
| 500 | 700 | 705 | 650 | 608 | 44-4 | 20-34 | 1630 | 700 |
| 600 | 800 | 840 | 770 | 718 | 48-5 | 20-41 | 1830 | 800 |
| Model | Nominal diameter | Size(mm) |
| L | D | D1 | D2 | b-f | z-Φd | H | D0 |
| Z41W-2.5MPa | 15 | 130 | 95 | 65 | 45 | 16-2 | 4-14 | 170 | 120 |
| 20 | 150 | 105 | 75 | 55 | 16-2 | 4-14 | 200 | 120 |
| 25 | 160 | 115 | 85 | 65 | 16-2 | 4-14 | 215 | 140 |
| 32 | 180 | 135 | 100 | 78 | 18-2 | 4-18 | 260 | 160 |
| 40 | 200 | 145 | 110 | 85 | 18-3 | 4-18 | 290 | 200 |
| 50 | 250 | 160 | 125 | 100 | 20-3 | 4-18 | 345 | 220 |
| 65 | 265 | 180 | 145 | 120 | 22-3 | 8-18 | 360 | 240 |
| 80 | 280 | 195 | 160 | 135 | 22-3 | 8-18 | 385 | 280 |
| 100 | 300 | 230 | 190 | 160 | 24-3 | 8-23 | 430 | 300 |
| 125 | 325 | 270 | 220 | 188 | 28-3 | 8-25 | 520 | 320 |
| 150 | 350 | 300 | 250 | 218 | 30-3 | 8-25 | 610 | 350 |
| 200 | 400 | 360 | 310 | 278 | 34-3 | 12-25 | 765 | 400 |
| 250 | 450 | 425 | 370 | 332 | 36-3 | 12-30 | 900 | 450 |
| 300 | 500 | 485 | 430 | 390 | 40-4 | 16-30 | 1130 | 500 |
| 350 | 550 | 550 | 490 | 448 | 44-4 | 16-34 | 1250 | 550 |
| 400 | 600 | 610 | 550 | 505 | 48-4 | 16-34 | 1430 | 600 |
| 450 | 650 | 660 | 600 | 555 | 50-4 | 20-34 | 1520 | 650 |
| 500 | 700 | 730 | 660 | 610 | 52-4 | 20-41 | 1650 | 700 |
| 600 | 800 | 840 | 770 | 718 | 56-5 | 20-41 | 1850 | 800 |
| Model | Nominal diameter | Size(mm) |
| L | D | D1 | D2 | D6 | b-f | z-Φd | H |
| Z41W-4.0MPa | 15 | 130 | 95 | 65 | 45 | 40 | 16-2 | 4-14 | 170 |
| 20 | 150 | 105 | 75 | 55 | 51 | 16-2 | 4-14 | 200 |
| 25 | 160 | 115 | 85 | 65 | 58 | 16-2 | 4-14 | 215 |
| 32 | 180 | 135 | 100 | 78 | 66 | 18-2 | 4-18 | 260 |
| 40 | 200 | 145 | 110 | 85 | 76 | 18-3 | 4-18 | 290 |
| 50 | 250 | 160 | 125 | 100 | 88 | 20-3 | 4-18 | 345 |
| 65 | 280 | 180 | 145 | 120 | 110 | 22-3 | 8-18 | 360 |
| 80 | 310 | 195 | 160 | 135 | 121 | 22-3 | 8-18 | 385 |
| 100 | 350 | 230 | 190 | 160 | 150 | 24-3 | 8-23 | 430 |
| 125 | 400 | 270 | 220 | 188 | 176 | 28-3 | 8-25 | 530 |
| 150 | 450 | 300 | 250 | 218 | 204 | 30-3 | 8-25 | 620 |
| 200 | 550 | 375 | 320 | 282 | 260 | 38-3 | 12-30 | 780 |
| 250 | 650 | 445 | 385 | 345 | 313 | 42-3 | 12-34 | 900 |
| Z41W-6.4MPa | 15 | 170 | 105 | 75 | 55 | 41 | 18-2 | 4-14 | 175 |
| 20 | 190 | 125 | 90 | 68 | 51 | 20-2 | 4-18 | 200 |
| 25 | 210 | 135 | 100 | 78 | 58 | 22-2 | 4-18 | 215 |
| 32 | 230 | 150 | 110 | 82 | 66 | 24-2 | 4-23 | 270 |
| 40 | 240 | 165 | 125 | 95 | 76 | 24-3 | 4-23 | 300 |
| 50 | 250 | 175 | 135 | 105 | 88 | 26-3 | 4-23 | 370 |
| 65 | 280 | 200 | 160 | 130 | 110 | 28-3 | 8-23 | 385 |
| 80 | 310 | 210 | 170 | 140 | 121 | 30-3 | 8-23 | 400 |
| 100 | 350 | 250 | 200 | 168 | 150 | 32-3 | 8-25 | 460 |
| 125 | 400 | 295 | 240 | 202 | 176 | 36-3 | 8-30 | 570 |
| 150 | 450 | 340 | 280 | 240 | 204 | 38-3 | 8-34 | 660 |
| 200 | 550 | 405 | 345 | 300 | 260 | 44-3 | 12-34 | 820 |
| 250 | 650 | 470 | 400 | 352 | 313 | 48-3 | 12-41 | 1000 |
