Zhejiang Yuhao Stainless Steel Co., Ltd
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RF RTJ Stainless Steel Class150/300/600/9001500/2500 Weld Neck Flange
►Product Description
A weld neck flange features a long, tapered hub that smoothly connects to the pipe or fitting via butt welding. During installation, the pipe end is inserted into the flange and welded around its circumference, forming a strong, leak-proof joint. The hub's design reinforces the flange, reducing the likelihood of distortion or damage. Widely used in high-pressure and high-temperature applications across industries such as petrochemical, oil and gas, and power generation, weld neck flanges are produced from materials like carbon steel, stainless steel, and alloy steel to meet diverse operational demands.
►Product Size
| DN | Pipe OD | Connection Size | Flange Thickness(mm) C | Flagne ID | |||
| A | B | Flange OD | Bolt Hole Circle Diameter | A | B | ||
| 10 | 17.2 | 14 | 90 | 60 | 14 | 18 | 15 |
| 15 | 21.3 | 18 | 95 | 65 | 14 | 22.5 | 19 |
| 20 | 26.9 | 25 | 105 | 75 | 16 | 27.5 | 26 |
| 25 | 33.7 | 32 | 115 | 85 | 16 | 34.5 | 33 |
| 32 | 42.4 | 38 | 140 | 100 | 18 | 43.5 | 39 |
| 40 | 48.3 | 45 | 150 | 110 | 18 | 49.5 | 46 |
| 50 | 60.3 | 57 | 165 | 125 | 19 | 61.5 | 59 |
| 65 | 76.1 | 76 | 185 | 145 | 20 | 77.5 | 78 |
| 80 | 88.9 | 89 | 200 | 160 | 20 | 90.5 | 91 |
| 100 | 114.3 | 108 | 220 | 180 | 22 | 116 | 110 |
| 125 | 139.7 | 133 | 250 | 210 | 22 | 143.5 | 135 |
| 150 | 168.3 | 159 | 285 | 240 | 24 | 170.5 | 161 |
| 200 | 219.1 | 219 | 340 | 295 | 24 | 221.5 | 222 |
| 250 | 273 | 273 | 395 | 350 | 26 | 276.5 | 276 |
| 300 | 323.9 | 325 | 445 | 400 | 26 | 328 | 328 |
| 350 | 355.6 | 377 | 505 | 460 | 28 | 360 | 381 |
| 400 | 406.4 | 426 | 565 | 515 | 32 | 411 | 430 |
| 450 | 457 | 480 | 615 | 565 | 36 | 462 | 485 |
| 500 | 508 | 530 | 670 | 620 | 38 | 513.5 | 535 |
| 600 | 610 | 630 | 780 | 725 | 42 | 616.5 | 636 |
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►FAQ
Q1: Are you manufacturer or trading company?
A: We are not only manufacturer but also a trading company,we have more than 12years export experience.
Q2: Can you supply what's the service?
A: We can supply the kinds of matel raw materies and products,such as pipes,pipe fittings,flanges,coil,sheet,round bar and so on...
Q3: Can you provide the free samples?
A: We can supply the free samples but the sample express freight need paid by yourside.
Q4: What is your minimum order quantity?
A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.
Q5: How long is your production lead time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.