Festo AG & Co. KG

8001459
one-way flow control valve
VFOF-LE-BAH-G18-Q6

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Festo Data sheet

CriterionFeature
Valve functionOne-way flow control function for exhaust air
Pneumatic connection, port 1QS-6
Pneumatic connection, port 2G1/8
Type of actuationmanual
Pilot air port 21QS-6
Adjusting elementInternal hex
Mounting typeThreaded
Standard nominal flow rate in flow control direction240 l/min
Standard nominal flow rate in non-return direction120 - 220 l/min
Operating pressure0,2 - 10 bar
Pilot pressure2 - 10 bar
Ambient temperature-10 - 60 °C
Material housingPBT
Assembly positionAny
Type of actuation, controlled non-return functionpneumatic
Manual exhaust functionPushing
Ability to swivel360° / no continuous swivelling permissible
Operating pressure complete temperature range0,2 - 10 bar
Standard flow rate in flow control direction 0.6->0 MPa (6->0 bar, 87->0 psi)420 l/min
Standard flow rate in non-return direction at 0.6->0 MPa (6->0 bar, 87->9 psi) actuated400 - 460 l/min
Standard flow rate in non-return direction at 0.6->0 MPa (6->0 bar, 87->0 psi) not actuated400 - 460 l/min
Standard nominal flow rate in non-return direction, actuated150 - 230 l/min
Standard nominal flow rate in non-return direction, unactuated120 - 220 l/min
Switching time off9 ms
Switching time on6 ms
Operating mediumCompressed air in accordance with ISO8573-1:2010 [7:4:4]
Note on operating and pilot mediumLubricated operation possible (subsequently required for further operation)
Medium temperature-10 - 60 °C
Pilot mediumCompressed air in accordance with ISO8573-1:2010 [7:4:4]
Nominal tightening torque3 Nm
Tolerance for nominal tightening torque± 20 %
Permissible actuation moment, regulating screw1 Nm
Product weight28,6 g
Material of coverES-BE
Materials noteConforms to RoHS
Material coverPBT
Material sealsNBR
Material hollow boltWrought Aluminium alloy
Material sleeveWrought Aluminium alloy
Material release ringPOM
Material adjusting screwBrass

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