QF502A 2+2 Exhaust Air Switch
The QF502A2+2 air switch is a combination valve made by combining two two-way air switches, which are connected with a housing and connected with an interlock device consisting of two steel balls and a cylindrical pin inside the housing to ensure safe operation.
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Pneumatic Components For Petroleum Equipment
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QF502A 2+2 Exhaust Air Switch
Detail
1. Characteristic:
The QF502A2+2 air switch is a combination valve made by combining two two-way air switches, which are connected with a housing and connected with an interlock device consisting of two steel balls and a cylindrical pin inside the housing to ensure safe operation. This interlocking device ensures that only when one of the valves is in neutral (original position), the other valve can be operated.
The QF502A2+2 displacement air switch is mainly used in the pneumatic system of oil or geological exploration drilling rigs and workover rigs, and the common occasion at present is the high and low speed control of oil drilling rig winches.
2. Symbol:
3. Technical Specification:
|
Nominal diameter mm |
6 |
|
Nominal pressure Mpa |
0.8 |
|
Leakage volume ml/min |
≤500 |
|
Effective cross-sectional area S value mm2 |
≥10 |
| Normal commutation performance |
Flexible commutation, accurate without abnormal sound and jamming phenomenon |
|
Pressure resistance Mpa |
1.2 |
|
Working environment temperature ℃ |
-25～60（Note: -40℃ low temperature resistant products need special customization） |
4. Outline and installation dimensions:
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QF509 Three-way plug valve
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