578797 FESTO | Alldatasheet
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Technical content
One-way flow control valve VFOH-LE-A-G18-Q4 Part number: 578797 Data sheet Feature Value Type code VFOH-LE Valve function Exhaust air flow control non-return function Pneumatic connection 1 QS-4 Pneumatic connection 2 G1/8 Actuation type Manual Adjusting element External hexagon Type of mounting Screw-in Standard nominal flow rate in flow control direction 180 l/min Standard nominal flow rate in non-return direction 103 l/min ... 188 l/min Ambient temperature 0 °C ... 150 °C Mounting position Any Symbol 00991452 Operating pressure for entire temperature range 0.2 bar ... 10 bar Standard flow rate in flow control direction 6 -> 0 bar 250 l/min Standard flow rate in non-return direction at 6 -> 0 bar 270 l/min ... 300 l/min Operating medium Compressed air as per ISO 8573-1:2010 [7:4:4] Information on operating and pilot media Operation with oil lubrication possible (required for further use) Storage temperature -10 °C ... 150 °C Temperature of medium 0 °C ... 150 °C Nominal tightening torque 3 Nm Tolerance for nominal tightening torque ± 10% Product weight 23 g Note on materials Free of copper and PTFE RoHS-compliant Seals material FPM Hollow bolt material Wrought aluminum alloy Releasing ring material Brass, nickel-plated Material of adjusting screw High-alloy stainless steel 11/18/21 - Subject to change - Festo AG & Co. KG 1/2
Swivel joint material Brass Nickel-plated 11/18/21 - Subject to change - Festo AG & Co. KG 2/2