Festo Shut-off valve, HE-3-QS-8 (153476)

This pneumatic manual control valve provides manual actuation of compressed-air circuits in industrial automation and machine systems. Designed for in-line installation, it operates as a bistable control element suitable for direct pilot use and non‑return flow paths within typical factory environments. The component is constructed from reinforced PBT for mechanical stability and is compatible with standard compressed-air quality as defined in ISO 8573-1.

Features & Benefits

• Operates across −0.95 to 10 bar for both vacuum and pressure handling
• Rated for 0 to 60°C ambient temperature for standard plant conditions
• Soft-sealing spool design for leak‑minimised switching
• Direct pilot control enabling immediate response to manual actuation
• Push‑in and threaded port options provide versatile connection choices
• Bistable manual actuation preserves last set position without power

Applications

• Suitable for controlling supply isolation in pneumatic tool benches
• Ideal for valve islands and small pneumatic manifolds
• Used for switching pilot lines in automation and control cabinets
• Can be used for vacuum‑assisted pick‑and‑place operations
• Suitable for maintenance rigs where manual reset is required