FESTO One-way flow control valve VFOE-LE-T-G38-Q8 (8068731)

Valve function Exhaust air one-way flow control function
Pneumatic connection, port 1 QS-8
Pneumatic connection, port 2 G3/8
Type of actuation Manual
Adjustment component Rotary knob with detent
Type of mounting Screw-in
Standard nominal flow rate in flow control direction 720 l/min
Standard nominal flow rate in blocked direction 600 l/min ... 900 l/min
Ambient temperature -10 °C ... 60 °C
Material housing PBT
Explosion protection The information in the certificate must be observed!
Zone 1 (ATEX)
Zone 2 (ATEX)
Zone 21 (ATEX)
Zone 22 (ATEX)
Mounting position optional
Symbol 00991452
Width across flats 21 mm
Rotatability 360°/no continuous swivelling permissible
Operating pressure complete temperature range 0.02 MPa ... 1 MPa
Operating pressure complete temperature range 0.2 bar ... 10 bar
Operating pressure complete temperature range 2.9 psi ... 145 psi
Standard flow rate in flow control direction 0.6->0 MPa (6->0 bar, 87->0
psi)
1150 l/min
Standard flow rate in non-return direction 0.6->0 MPa (6->0 bar, 87->0
psi)
1300 l/min ... 1500 l/min
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on operating and pilot medium Lubricated operation possible (in which case lubricated operation will
always be required)
LABS (PWIS) conformity VDMA24364 zone III
Cleanroom class Class 4 according to ISO 14644-1
Media temperature -10 °C ... 60 °C
Max. tightening torque 15.6 Nm
Nominal torque 13 Nm
Tolerance for nominal tightening torque ± 20%
Product weight 29.5 g
Note on materials RoHS-compliant
Material cover PBT
Material dynamic seals HNBR
Material threaded bolt Galvanised steel
Material release ring PBT
Material static seals NBR