Aluminum Cap Flange is also called blind plate aluminum flange, blind plate. It is an aluminum flange without a hole in the middle for sealing the pipe plug. The function is the same as the welding head and the threaded pipe cap, except that the blind plate aluminum flange and the threaded pipe cap can be removed at any time, while the welded head cannot.
This standard applies to Aluminum Cap Flange with a nominal pressure of PN≤1.0Mpa.
1 The type and size of flange cover are specified in the following figure and table below.
Aluminum Cap Flange
Dimensions of flange cover
Markup example:
Aluminium Cap Flange with nominal pressure PN≤1.0Mpa, nominal diameter DN=40, material LF4:
Flange cover DN40 LF4
|
Nominal diameterDN |
D |
D1 |
D4 |
D5 |
D6 |
C |
b |
d |
bolt |
Weight (Kg) (Proportion 2.67 |
|
|
Diameter |
quantity |
||||||||||
|
25 |
115 |
85 |
41 |
47 |
53 |
1 |
16 |
14 |
M12 |
4 |
0.32 |
|
40 |
150 |
110 |
59 |
67 |
75 |
18 |
18 |
M16 |
0.59 |
||
|
50 |
165 |
125 |
69 |
77 |
85 |
0.70 |
|||||
|
65 |
185 |
145 |
89 |
97 |
105 |
0.98 |
|||||
|
80 |
200 |
160 |
104 |
112 |
120 |
2 |
20 |
8 |
1.43 |
||
|
100 |
220 |
180 |
119 |
130 |
141 |
22 |
1.91 |
||||
|
125 |
250 |
210 |
147 |
158 |
169 |
2.34 |
|||||
|
150 |
285 |
240 |
171 |
182 |
193 |
22 |
M20 |
3.19 |
|||
|
200 |
340 |
295 |
225 |
236 |
247 |
24 |
5.15 |
||||
|
250 |
395 |
350 |
277 |
288 |
299 |
26 |
12 |
8.19 |
|||
|
300 |
445 |
400 |
331 |
342 |
353 |
30 |
10.76 |
||||
|
350 |
505 |
460 |
380 |
392 |
404 |
34 |
16 |
16.59 |
|||
|
400 |
565 |
515 |
428 |
440 |
452 |
38 |
26 |
M24 |
24.58 |
||
|
500 |
670 |
620 |
532 |
544 |
556 |
44 |
20 |
40.17 |
|||
2 The Aluminum Cap Flange material is LF4; and the material certificate must be attached.
3 Do not cut with plates.
The remaining technical requirements should meet the requirements of HT2517-84 "General Technical Requirements for Flanges".
