Characteristics and Performance
1. Appearance: beautiful appearance, flat and smooth surface.
2. Corrosion resistance: good acid and alkali resistance and anti-corrosion performance.
3. Sealing performance: It has good sealing performance, which can ensure that no leakage occurs in the joint part.
4. Plate Flanges Uses
Plate flanges are primarily known for their role in connecting pipes, yet their versatility makes them invaluable in various other applications. They link different components within a system and effectively seal off sections as needed. For instance, they're frequently employed to join metal pipes or connect separate piping sections. Moreover, they're adept at sealing gaps between distinct pieces of metal, ensuring a secure enclosure. Furthermore, plate flanges find utility in connecting plastic pipes and even integrating HVAC system sections such as air conditioners or heaters.
Plate Flanges Dimension
|
Flange DN |
Pipe |
Flange |
Stud Bolts |
Flange Weight |
|||||
|
d1 |
k |
D |
b |
d2 |
Thread |
Bolt holes |
KG |
||
|
15 |
21,3 |
22,0 |
55 |
80 |
12 |
11 |
M10 |
4 |
0,401 |
|
20 |
26,9 |
27,5 |
65 |
90 |
14 |
11 |
M10 |
4 |
0,590 |
|
25 |
33,7 |
34,5 |
75 |
100 |
14 |
11 |
M10 |
4 |
0,716 |
|
32 |
42,4 |
43,5 |
90 |
120 |
16 |
14 |
M12 |
4 |
1,153 |
|
40 |
48,3 |
49,5 |
100 |
130 |
16 |
14 |
M12 |
4 |
1,344 |
|
50 |
60,3 |
61,5 |
110 |
140 |
16 |
14 |
M12 |
4 |
1,478 |
|
65 |
76,1 |
77,5 |
130 |
160 |
16 |
14 |
M12 |
4 |
1,850 |
|
80 |
88,9 |
90,5 |
150 |
190 |
18 |
18 |
M16 |
4 |
2,944 |
|
100 |
114,3 |
116,0 |
170 |
210 |
18 |
18 |
M16 |
4 |
3,247 |
|
125 |
139,7 |
141,5 |
200 |
240 |
20 |
18 |
M16 |
8 |
4,301 |
|
150 |
168,3 |
170,5 |
225 |
265 |
20 |
18 |
M16 |
8 |
4,741 |
|
200 |
219,1 |
221,5 |
280 |
320 |
22 |
18 |
M16 |
8 |
6,862 |
|
250 |
273,0 |
276,5 |
335 |
375 |
24 |
18 |
M16 |
12 |
8,893 |
Sealing Surface Type
The main types of sealing surfaces for plate type flat welding flanges include full-flat plate flanges (FF) and raised face plate flanges (RF).
Execution Standard And Connection Form
● Execution standards: follow the standards of the Ministry of Chemical Industry (e.g. HG20593-2009, HG20615-2009), national standards (e.g. GB/T9119-2010, GB/T2555-81), standards of the Ministry of Mechanical Affairs (e.g. JB/T81-94, JB/T74-94, JB/T75-94), as well as the standards of the ship (e.g. CB M1001-81) etc.
● Connection form: single-sided welding and double-sided nut connection are used. Specifically, the pipe is inserted inside the inner diameter of the flat welding flange to be welded, and then fixed with bolts and nuts on both sides.
Manufacturing Process And Advantages
1. Manufacturing process: including pure material forging, gross material forging (second), applicable to SO flange and necked butt-welding flange; steel plate applicable to flat welding flange. It is manufactured through the process of opening the material by suboxidizing furnace, forging as a whole or finished forging and cutting molding, turning by high-precision numerical control lathe and drilling by numerical control rocker arm drill.
2. Advantages:
● Save space and weight.
● Good sealing performance.
● Compact design, small size and light weight (70%~80% less weight than traditional flanges).
Application Scenario
Plate type flat welding flanges are widely used in various occasions where pipeline connection is required, especially in petroleum, chemical and natural gas industries.
