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Product Details:
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| Product Name:: | Blind Flange | Species：: | Plane, Convex, Concave Convex, Etc |
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| Effect：: | Seal The Pipe Plug | Production Process：: | Forging, Casting And Cutting |
| Application: | Industrial,Petroleum | Surface Treatment: | Galvanized Etc |
| Highlight: | Ss Blind Flange,Stainless Steel Blind Flange,Tensile Shear Stainless Steel Blind Flange |
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Blind flange is also called blind flange. Its proper name is flange cover. It is a flange with no hole in the middle for sealing the pipe plug.
There are many types of sealing surface, including plane, convex, concave convex, mortise and groove surface, and ring connection surface.Blind flange production process is mainly divided into forging, casting, cutting, these three kinds.
Casting blind flange, the blank shape and size is accurate, the processing amount is small, the cost is low, but there are casting defects (porosity, crack, inclusion), the internal structure of the casting streamline is poor (if it is a cutting part, the streamline is worse).
Forging blind flange is generally lower carbon content than casting blind flange, and is not easy to rust. Forging streamline is good, the structure is relatively compact, and the mechanical properties are better than casting flange.
1. Improper forging process will also lead to large or uneven grains, hardening cracks, and forging cost is higher than casting flange.
2. Forgings can bear higher shear force and tensile force than castings. The advantages of the casting are that it can make a more complex shape with a lower cost.
3. The advantages of the forging are that the internal structure is uniform and there are no harmful defects such as pores and inclusions in the casting.
4. The production process of cutting blind flange is to directly cut out the inner and outer diameter and thickness of the flange on the middle plate,and then process the bolt hole and water line.
5. The flange produced in this way is called cut flange. The maximum diameter of such flange is limited to the width of the middle plate.
1. First of all, reasonable mechanical design structure can help us reduce the pressure and wear between flange surfaces.
2. In addition, the material and heat treatment process of Xinjiang blind flange also affect the overall quality of the flange.
3. In addition, if the blind flange works in dusty or polluted environment, necessary dust-proof device and sealing device shall be added.
4. Of course, the general method to reduce the mechanical wear is also necessary to use lubricant.
5. For the flange, the methods of hydrostatic lubrication and hydrodynamic lubrication can be used.
6. This problem can also be solved by using magnetic suspension support with higher technical accuracy.
7. The system has good stability and convenient maintenance.
8. The connection mode of grooved pipe fittings has unique flexible characteristics, which makes the pipeline have the ability of anti vibration, anti shrinkage and expansion.
9. Compared with welding and flange connection, the stability of the pipeline system is increased, which is more suitable for the change of temperature.
10. Thus protecting the pipeline valves and reducing the damage of the pipeline stress to the structural parts.
Tensile Shear Force Casting Stainless Steel Blind Flange data sheet
| Weight table of blind flange | |||||
| Number | Specifications | Thickness C | Inner hole diameter B | Flange weight | Weight of inner hole solid plate |
| 1 | Flange DN50 | 18 | 59 | 2.09 | 0.39 |
| 2 | Flange DN65 | 20 | 78 | 2.84 | 0.75 |
| 3 | Flange DN80 | 20 | 91 | 3.24 | 1.02 |
| 4 | Flange DN100 | 22 | 110 | 4.01 | 1.64 |
| 5 | Flange DN125 | 24 | 135 | 5.4 | 2.70 |
| 6 | Flange DN150 | 24 | 161 | 6.12 | 3.84 |
| 7 | Flange DN200 | 24 | 222 | 8.24 | 7.29 |
| 8 | Flange DN250 | 26 | 276 | 10.7 | 12.21 |
| 9 | Flange DN300 | 28 | 328 | 12.9 | 18.57 |
| 10 | Flange DN350 | 28 | 381 | 15.9 | 25.06 |
| 11 | Flange DN400 | 30 | 430 | 21.8 | 34.20 |
| 12 | Flange DN450 | 30 | 485 | 24.4 | 43.51 |
| 13 | Flange DN500 | 32 | 535 | 27.7 | 56.47 |
| 14 | Flange DN600 | 36 | 636 | 39.4 | 89.78 |
| 15 | Flange DN700 | 36 | 724 | 53 | 116.34 |
| 16 | Flange DN800 | 38 | 824 | 67 | 159.07 |
| 17 | Flange DN900 | 42 | 924 | 85 | 221.08 |
| 18 | Flange DN1000 | 44 | 1024 | 106 | 284.45 |
| 19 | Flange DN1200 | 48 | 1224 | 155 | 443.35 |
| 20 | Flange DN1400 | 54 | 1424 | 221 | 675.09 |
| 21 | Flange DN1600 | 62 | 1624 | 335 | 1008.12 |
| 22 | Flange DN1800 | 66 | 1824 | 399 | 1353.76 |
| 23 | Flange DN2000 | 72 | 2024 | 505 | 1818.45 |
1. Blind flange is mainly used to connect and fasten pipes, pipe fittings, etc., and maintain the sealing performance of pipe fittings.
2. The blind flange can be disassembled to facilitate the disassembly and inspection of pipes.
3. Blind flange is anti-corrosion, acid and alkali resistant, and can be used in water conservancy, power, power station, pipe fittings, industry, pressure vessel, etc.
4. Stainless steel blind flange can be used in boiler, pressure vessel, petroleum, chemical industry, shipbuilding, pharmacy, metallurgy, machinery, food and other industries, which is convenient for the replacement of a certain section of pipeline.
5. The blind flange of reducer is mainly used for the connection between motor and reducer, as well as the connection between reducer and other equipment.
6. The butt welding flange cover is used to transfer the pressure of the pipeline, thus reducing the high stress concentration in France.
a. Plastic bubble bag package b.Wove bag package c.Pallet d. Customized
Our Steel flat factory have high ability for production, the delivery time is 45days for small quantity, or if you are hurry for that, we can arrange and meet your shipping date.
Contact Person: Rachel Zhang
Tel: 13679287344
