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PQ-L10-40 Safety Valve Series
In pneumatic transmission systems, a safety valve is a device used to prevent damage to pneumatic actuators, equipment, and piping by limiting the maximum pressure in the circuit. When the pneumatic pressure exceeds the maximum allowable limit, the safety valve automatically opens to vent excess air; once the pressure drops below this limit, the valve automatically closes.
Keywords:
Category:
Pneumatic components for oilfield equipment
I. Characteristics:
In pneumatic transmission systems, a safety valve is a device that limits the maximum pressure in the circuit to prevent damage to pneumatic actuators, equipment, and piping. When the system pressure exceeds the maximum allowable limit, the safety valve automatically opens to vent excess air; once the pressure drops below this limit, the valve closes automatically.
II. Graphical Symbols:
III. Model Description:
IV. Technical Parameters:
| Model |
PQ
|
|||||
| Nominal diameter | 10mm | 15mm | 20mm | 25mm | 40mm | |
| Work stress range | 0.05–1.00 MPa | |||||
| Operating temperature | 5–60°C | |||||
*When using this valve, adjust the required opening pressure; once properly adjusted, tighten the locknut to prevent loosening of the adjustment sleeve and ensure the system’s safety pressure.
V. External Appearance and Installation Dimensions:
| Model | PQ-L10 | PQ-L15 | PQ-L20 | PQ-L25 | PQ-L40 |
| A | φ25 | φ27 | φ45 | φ80 | |
| B | 75 | 130 | 287 | ||
| C | 82 | 135 | 300 | ||
| M | ZG3/8" |
ZG1/2" |
ZG3/4" | ZG1" | ZG1 1/2" |
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+8615588424700
Contact email
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Contact Address
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Application fields
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Large oilfield
Mine
Railway
Drilling machine
Well workover rig
Well-logging machine
Oil Production Plant
Large oilfield
Mine
Railway
Drilling machine
Well workover rig
Well-logging machine
Oil Production Plant
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Specializing in pneumatic valves for petroleum machinery, air source treatment components, control components, actuating components, auxiliary components, and pneumatic tools.
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Contact now
Need help? We’re here to help!
Phone/Fax
+86-631-5684177
Service hotline (same number on WeChat)
+8615588424700
+8613561811500
Contact email
whzhpc.business@whzhpc.com
Contact Address
No. 55 Dalian Road, High-Tech Industrial Development Zone, Weihai City, Shandong Province
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