Product overview：
The pneumatic eccentric semi-ball valve belongs to the angular stroke pneumatic eccentric regulating valve, which is composed of a high-precision piston pneumatic actuator and an eccentric semi-ball valve.The pneumatic eccentric ball valve can be equipped with a valve positioner to input a control signal (4-20mA DC or 1-5VDC) and the air source can control the operation.Equipped with travel limit switch, solenoid valve, pressure reducing valve and 0.4-0.7MPa air source to realize switch operation and send out two pairs of passive contact signals to indicate the switch of the valve.
Specifications
|
Nominal diameter (mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
|
Rated flow coefficient KV |
Full cavity type |
14 |
25 |
30 |
55 |
100 |
135 |
230 |
320 |
500 |
850 |
1300 |
1750 |
|
60% cavity |
– |
– |
– |
– |
– |
– |
– |
– |
300 |
510 |
780 |
1050 |
|
|
40% cavity |
6 |
10 |
12 |
20 |
40 |
54 |
92 |
128 |
200 |
340 |
520 |
700 |
|
|
Allowable pressure difference (MPa) |
≤ Nominal pressure |
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|
Valve body type |
Integral casting spherical body |
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|
Valve core type |
Eccentric rotating valve core (with guide wing) |
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|
Flow characteristics |
Approximately equal percentage |
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|
Range of motion |
Fully open 60° |
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|
Leakage Q |
Soft seal level VI, hard seal level IV, in accordance with ANSI B16.104 standard |
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|
Basic error |
±1% |
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|
Return difference |
±1% |
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|
Dead zone |
≤1% |
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|
Adjustable range |
Full cavity type (100:1), 60% cavity type (60:1), 40% cavity type (40:1) |
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|
Configuring the actuator |
AT series single and double acting pneumatic actuator |
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|
Control method |
Switch two-position control, 4-20mA analog signal control |
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