Festo – HGL‑3/8‑B (530 032) – Piloted Check Valve, G⅜, 0.5–10 bar

Main Features

• Manufacturer: Festo  

• Model/MPN: HGL‑3/8‑B, internal Festo part number 530 032

• Valve Type: Piloted (unlockable) pneumatic check valve—allows flow only when pilot pressure is applied; otherwise, blocks exhaust line  

• Ports:

  • Main inlet/outlet: female G⅜ thread

  • Pilot control: female G¼ thread  

• Operating Pressure: Main supply 0.5–10 bar; pilot control pressure 1–10 bar  

• Flow Performance: Up to approx. 1100 L/min at rated pressure differential  

• Temperature Range: −10 °C to +60 °C

• Materials & Seals: Aluminum body; POM/NBR seals; zinc corrosion resistance class 2  

• Environmental Protection: Compact design with swivel connection option; plug-in installation possible  

• Typical Applications:

  • Safety-related systems requiring maintained actuator position

  • Pneumatic braking or locking in actuators

  • Pressure-holding functions in industrial automation