QF502D 4 gear gas switch
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Pneumatic Components For Petroleum Equipment
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QF502D 4 gear gas switch
Detail
One. Features
OF502D 4 4 gear gas switch is a combination valve composed of a four-vent switch and another four-vent switch. The valve is connected with a housing and connected with an interlocking device composed of two steel balls and a cylindrical pin in the housing. To ensure safe operation. The interlock ensures that only one of the valves is operated when the other valve is in neutral (home position).
QF502D 4 4 gear gas switch is mainly used in the pneumatic system of oil or geological exploration drilling rig and workover rig. At present, the most commonly used occasion is the high and low speed control of the drawworks of oil drilling rig.
II. Technical parameters
| Nominal diameter (mm) | 6 |
| Nominal pressure (Mpa) | 0.8 |
| Leakage (ml/min) | ≤500 |
| Effective cross-sectional area S value (m㎡) | ≥ 10 |
| Normal commutation performance | Flexible commutation, accurate, no abnormal sound and blocking phenomenon |
| Pressure resistance (Mpa) | 1.2 |
| Working environment temperature (℃) | -25~60 (Note:-40 ℃ low temperature resistant products need special customization) |
Three. Outline and installation dimensions
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QF502C 3 4 gear gas switch
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