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⊙Pneumatic components for petroleum equipment
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⊙Air source treatment element series
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⊙Pressure control valve series
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⊙Manual control valve
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⊙Pneumatic control valve series
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⊙Electric control valve series
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⊙Flow control valve series
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⊙Shuttle valve series
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⊙Check valve series
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⊙Cylinder series
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⊙Machine-controlled reversing valve series
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⊙Silencer
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⊙Quick exhaust valve
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⊙Hydraulic valve, hydraulic pump
PQ-L10-40 safety valve series
1. Features:
In a pneumatic transmission system, a safety valve is a valve used to prevent damage to pneumatic devices, equipment and pipelines and limit the maximum pressure of the circuit. When the air pressure exceeds the maximum limit pressure, the safety valve automatically opens to exhaust, and when the air pressure is lower than the maximum limit pressure, the safety valve automatically closes.
2. Graphic symbols:
3. Model description:
4. Technical parameters:
Model |
PQ
|
|||||
Nominal diameter | 10mm | 15mm | 20mm | 25mm | 40mm | |
Working pressure range | 0.05~1.00MPa | |||||
Operating temperature | 5~60°C |
*When using this valve, the required opening pressure should be adjusted, and the nut should be locked after adjustment, so as not to affect the safety pressure of the system due to the loosening of the adjusting sleeve.
5. Shape and installation dimensions:
Model | PQ-L10 | PQ-L15 | PQ-L20 | PQ-L25 | PQ-L40 |
A | Ø25 | Ø27 | Ø45 | Ø80 | |
B | 75 | 130 | 287 | ||
C | 82 | 135 | 300 | ||
M | ZG3/8"
ZG1/2" |
ZG1/2"
ZG3/4" |
ZG3/4" | ZG1" | ZG11/2" |
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