Threaded Bellow Seal Globe Valves
Materials
Materials of DIN Bellow Seal Globe Valves
| No |
Part name |
Material |
No |
Part name |
Material |
| 1 |
Body |
GS-C25 CFS CF8 |
7 |
Packing |
Flexible Graphite |
| 2 |
Disc |
304,316 |
8 |
Gland |
GS-C25 CFS CF8 |
| 3 |
Pin |
ASTM304 |
9 |
Guiding piece |
25,45,304,316 |
| 4 |
Bellow assembled |
304,316 |
10 |
Yoke nut |
ZQA19-4 |
| 5 |
Stem |
304,316 |
11 |
Bolt,Nut |
ASTM304 |
| 6 |
Bonnet |
GS-C25 CFS CF8 |
12 |
Hand wheel |
WCBQT400-18 |
| Pressure |
Test Pressure(MPa) |
| shell |
seal |
bellow seal |
low-pressure seal |
| MPa |
1.6 |
2.4 |
1.76 |
1.76 |
0.6 |
| 2.5 |
3.8 |
2.75 |
2.75 |
0.6 |
| 4.0 |
6.0 |
4.4 |
4.4 |
0.6 |
| Suitable temp |
-20~350°C |
| Suitable medium |
Water, Stem, Oil etc. |
Dimensions and Weight
| Nominal diameter |
boot dolt of |
size(mm) |
| L |
L1 |
S |
H |
H1 |
D0 |
| 15 |
1/2 |
90 |
14 |
30 |
109 |
117 |
65 |
| 20 |
3/4 |
100 |
16 |
36 |
109 |
117 |
65 |
| 25 |
1 |
120 |
18 |
46 |
130 |
140 |
95 |
| 32 |
1-1/4 |
140 |
20 |
55 |
155 |
168 |
120 |
| 40 |
1-1/2 |
170 |
22 |
62 |
165 |
178 |
120 |
| 50 |
2 |
200 |
24 |
75 |
180 |
195 |
180 |