Description
The lining flange cover is a blind flange, and the side close to the medium is welded with stainless steel as a whole.
The lining flange cover is used as a blind plate on the pipeline with corrosive medium.
The difference from the ordinary flange cover is that the anti-corrosion lining layer is added on the contact surface with the medium.
Technical data sheet
| Nominal size | Connection size | Dimension or sealing surface | lining thickness | |||||
| Flange outer diameter | Center circle diameter | Bolt hole diameter | Number of bolt holes | d | dl | Convex surface | ||
| 40 | 130 | 100 | 14 | 4 | 80 | 30 | 3 | 2 |
| 50 | 140 | 110 | 14 | 4 | 90 | 45 | 3 | 2 |
| 65 | 160 | 130 | 14 | 4 | 110 | 60 | 3 | 2 |
| 80 | 190 | 150 | 18 | 4 | 128 | 75 | 3 | 2 |
| 100 | 210 | 170 | 18 | 4 | 148 | 95 | 3 | 2 |
| 125 | 240 | 200 | 18 | 8 | 178 | 110 | 3 | 2 |
| 150 | 265 | 225 | 18 | 8 | 202 | 130 | 3 | 2 |
| 200 | 320 | 280 | 18 | 8 | 258 | 190 | 4 | 2 |
| 250 | 375 | 335 | 18 | 12 | 312 | 235 | 4 | 2 |
| 300 | 440 | 395 | 22 | 12 | 365 | 285 | 5 | 3 |
Characteristic
The principle of the lining flange cover is similar to that of the looper flange. It is made of relatively special materials on the contact surface with the medium, and is inlaid or welded on the flange plate with relatively low price.
The processing technology is more complicated than the integral flange, but its overall cost is low and can meet the production needs.
Application
Lining flange cover is mainly used in boiler and pressure vessel, petroleum, chemical, shipbuilding, pharmaceutical, metallurgy, machinery, food and other industries.
