316, 316L, 304, 304L, Carbon Stainless Steel Blind Flange 1/2”, 2”, 3”, 4”, 6”, 8”, 10”, up to 24”
Product Specifications
| Attribute | Value |
| Material | ASTM A182 F304/L, F316/L |
| Application | Connection, Decoration, Oil and Gas, Automotive, Chemical, Water Treatment |
| Standard | DIN 86029 |
| Flange face type | RF (Raised Face) |
| Package | Standard Seaworthy Packaging, wooden cases |
| Certification | ISO, API, BV, CE |
| Connection | Welding |
| Pressure | PN6-PN400 |
| Dimensions | 1/2", 2", 3", 4", 6", 8", 10", up to 24" |
| Place of origin | Zhejiang |
Product Description
A blind flange, sometimes called a flange cover, blind disc, or flanged pipe plug, is a solid piece with no hole in the center. It’s designed to seal off the end of a pipe or pressure vessel. Think of it like a cap or plug, but with the added benefit of being bolted in place — which means it can be easily removed when needed for maintenance, inspections, or system changes.
When installed at the end of a pipeline, a blind flange creates a strong, leak-proof seal that keeps fluids or gases from escaping under pressure. Its sturdy design and ability to be reused make it especially useful in situations where you need a secure shut-off but still want the option to access or reopen that part of the system later.
Product Dimensions
| DN | Pipe OD | Connection Size | Flange Thickness (mm) | Flange ID |
| 10 | 17.2 | 14 | 14 | 15 |
| 15 | 21.3 | 18 | 14 | 19 |
| 20 | 26.9 | 25 | 16 | 26 |
| 25 | 33.7 | 32 | 16 | 33 |
| 32 | 42.4 | 38 | 18 | 39 |
| 40 | 48.3 | 45 | 18 | 46 |
| 50 | 60.3 | 57 | 19 | 59 |
| 65 | 76.1 | 76 | 20 | 78 |
| 80 | 88.9 | 89 | 20 | 91 |
| 100 | 114.3 | 108 | 22 | 110 |
| 125 | 139.7 | 133 | 22 | 135 |
| 150 | 168.3 | 159 | 24 | 161 |
| 200 | 219.1 | 219 | 24 | 222 |
| 250 | 273 | 273 | 26 | 276 |
| 300 | 323.9 | 325 | 26 | 328 |
| 350 | 355.6 | 377 | 28 | 381 |
| 400 | 406.4 | 426 | 32 | 430 |
| 450 | 457 | 480 | 36 | 485 |
| 500 | 508 | 530 | 38 | 535 |
| 600 | 610 | 630 | 42 | 636 |
Product Images
Frequently Asked Questions
Q1: Can you provide the free samples?
A: We can supply the free samples but the sample express freight need paid by yourside.
Q2: Can you supply what's the service?
A: We can supply the kinds of metal raw materials and products, such as pipes, pipe fittings, flanges, coil, sheet, round bar and so on.
Q3: Can I customize products?
A: Yes. Let me know the specific customization requirements, and I will get back to you as soon as possible.
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: Where is your factory located?
A: Our factory is located in Wenzhou City, Zhejiang Province, China.
