Pneumatic wafer metal hard seal control valve adopts a U-pattern stainless steel sealing ring. The sealing ring contact with three eccentric disc after being polished. The sealing face is separated from disc when it is opened and contact with disc when it closed to realize sealing. Pneumatic wafer metal hard seal control valve is widely utilized as device to control flow or cut off medium in petroleum, electricity, metallurgy, etc for its long service life and good sealing.
Working temperature: ≤550℃
Nominal pressure: ANSI Class 150Lb, 300Lb
Applicable medium: water, oil, gas, etc.
Materials
|
No. |
Part name |
Material name |
|
1 |
Body |
Carbon steel, CF8 Stainless steel, CF8M Stainless steel,CF3M Stainless steel |
|
2 |
Disc |
Carbon steel, CF8 Stainless steel, Cram Stainless steel, CF3M Stainless steel |
|
3 |
Rotatable shaft |
2Cr13, 304 Stainless steel,316 Stainless steel,316L Stainless steel |
|
4 |
Seal ring |
All kinds of stainless steel complexes |
|
5 |
Shaft guard |
ZCuZn38Mn2Pb2, stainless steel complexes with PTFE |
|
6 |
Packing |
Flexible graphite |
Dimensions
|
Nominal Diameter DN |
Structure length/ standard value |
Figure size (reference value） |
Connection size (Standard value) |
Weight(kg) |
|||||||
|
H |
H2 |
A2 |
B2 |
150Lb |
300Lb |
||||||
|
mm |
inch |
L |
D1 |
Z-d |
D1 |
Z-d |
|||||
|
50 |
2 |
43 |
112 |
625 |
245 |
72 |
125 |
4-14 |
125 |
4-18 |
11 |
|
65 |
21/2 |
46 |
115 |
625 |
245 |
72 |
145 |
4-14 |
145 |
8-18 |
12 |
|
80 |
3 |
49 |
120 |
645 |
245 |
72 |
160 |
8-18 |
160 |
8-18 |
15 |
|
100 |
4 |
56 |
138 |
675 |
355 |
92 |
180 |
8-18 |
190 |
8-22 |
17 |
|
125 |
5 |
64 |
164 |
715 |
355 |
92 |
210 |
8-18 |
220 |
8-26 |
27 |
|
150 |
6 |
70 |
175 |
800 |
355 |
92 |
240 |
8-22 |
250 |
8-26 |
29 |
|
200 |
8 |
71 |
208 |
850 |
250 |
170 |
295 |
12-22 |
310 |
12-26 |
45 |
|
250 |
10 |
76 |
243 |
925 |
250 |
170 |
355 |
12-26 |
370 |
12-30 |
69 |
|
300 |
12 |
83 |
283 |
1035 |
450 |
220 |
410 |
12-26 |
430 |
16-30 |
86 |
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