Product Series
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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
QF517 check valve
1. Features:
A check valve is a valve that controls the air flow to flow in only one direction, but not in the reverse direction. Most of them are combined with a throttle valve to control the movement speed of the actuator, and it is also used to prevent the phenomenon of air backflow in the circuit.
2. Technical parameters:
Model QF539
Nominal diameter (mm) 50
Effective cross-sectional area (mm²) 650
Maximum operating pressure (MPa) 1.0
Environment and medium temperature (℃) 5-80
Durability (10,000 times) Greater than 100
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