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Q61N high pressure butt welding ball valve valve body in the two seat along with the valve channel axis vertical section is divided into three parts, the whole valve along the stem center axis symmetry, high pressure forged steel ball valve in the pipeline is mainly used to cut off, distribution and change the direction of medium flow. Its large pivot structure ensures accurate ball center position under high pressure, ensuring good valve operation performance.
Specification
|
Design standard |
ASME B 16.34 GB/T12224 |
|
Structure length |
ASME B 16.10 GB/T12221 |
|
Connecting flange |
ASME B 16.5、JB/T 79 |
|
Drive mode |
Manual, electric, pneumatic |
|
Testing and inspection |
JB/T9092 API 598 |
|
Suitable medium |
Heavy oil, glue and other easy to solidify medium |
Characteristics
1. When the pressure of stagnation in the valve chamber abnormally exceeds the preload of the spring, the valve seat will retreat from the ball to achieve the effect of automatic pressure relief, and the valve seat will automatically reset after pressure relief.
2, When in case of fire or due to abnormal temperature of the valve seat sealing ring burn or soften, under the action of spring and medium pressure, the spherical part of the support ring and the sphere form metal to metal contact, to achieve temporary sealing effect, prevent the further expansion of the fire.
3, The sealing part of packing gland adopts PTFE packing and O-type sealing ring double seal, especially suitable for gas medium, packing is installed in the packing disc, can be used at any time the new SF type self-lubricating sliding bushing with low friction coefficient, reduce operating torque.
Materials
|
No. |
Name of parts |
Materials |
|
|
GB |
ASTM |
||
|
1 |
Jacket |
25 |
105 |
|
2 |
Seat |
WCB |
A216-WCB |
|
3 |
Body |
25 |
A105 |
|
4 |
Sealing Ring |
PTFE、PPL |
|
|
5 |
Ball |
|
|
|
6 |
Stem |
1Cr13 |
A247-410 |
|
7 |
Packing |
Graphite |
|
|
8 |
Packing gland |
WCB |
A216-WCB |
Dimensions
|
Model |
Nominal diameter |
Size(mm) |
|||||
|
L |
L1 |
D |
D1 |
H |
L0 |
||
|
Q61N-160/320 |
10 |
150 |
60 |
90 |
17 |
58 |
220 |
|
15 |
170 |
70 |
100 |
23 |
62 |
220 |
|
|
20 |
191 |
81 |
110 |
29 |
75 |
250 |
|
|
25 |
205 |
95 |
115 |
36 |
80 |
250 |
|
|
32 |
230 |
110 |
150 |
43 |
96 |
300 |
|
|
40 |
260 |
120 |
170 |
49 |
111 |
400 |
|
|
50 |
330 |
140 |
200 |
61 |
128 |
400 |
|
|
65 |
360 |
150 |
225 |
80 |
180 |
500 |
|
|
80 |
380 |
160 |
270 |
105 |
200 |
600 |
|
|
100 |
430 |
188 |
320 |
118 |
245 |
800 |
|
