Product overview：
Q647 pneumatic fixed ball valve is assembled by fixed ball valve and pneumatic actuator. Pneumatic fixed ball valve is matched with electric valve positioner to adjust the pressure, flow, temperature, liquid level and other parameters.Equipped with travel limit switch, solenoid valve, pressure reducing valve and 0.4-0.7MPa air source, it can realize switch operation and send out two pairs of passive contact signals to indicate the switch of the valve.
Specifications
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Nominal diameter DN (mm) |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
500 |
600 |
700 |
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Nominal pressure (MPa) |
PN1.0,2,4.0,6.4,10.0MPa;ANSI 150 300 600 900LB |
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Valve body type |
Two-section cast body |
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Valve core type |
“O” type ball valve core |
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Sealing packing |
V-type PTFE packing, PTFE-impregnated asbestos packing, asbestos textile packing, graphite packing |
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Connection Type |
Flange |
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Flow characteristics |
Approximate fast-opening type |
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Leakage |
According to GB/T4213-92, less than rated KV0.01% (soft seal: zero leakage) |
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Adjustable range |
250:1 |
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Basic error |
With positioner: less than ±2% of full stroke |
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Dead zone |
With positioner: less than ±2% of full stroke |
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proper temperature |
PTFE≤150℃;PPL≤250℃;Metal seal ≥300℃ |
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Configuring the actuator |
AT, AW series single and double acting pneumatic actuators |
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Control method |
Switch two-position control, 4~20mA analog control |
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