Overview
The Festo SEU-1/8-NPT quick exhaust valve (part number 9798) is a precision pneumatic control valve engineered for rapid air exhaust in industrial pneumatic systems. This compact, screw-in valve vents pressurized air quickly from pilot-operated cylinders and actuators, enabling faster cycle times and improved system responsiveness. Built with die-cast zinc housing and NBR seals, it meets demanding OEM and maintenance requirements across manufacturing, automation, and mobile equipment applications.
Key Features
- Quick exhaust function: Enables rapid venting of pilot air, speeding up cylinder retraction
- Compact screw-in design: Space-efficient threaded mount for easy integration into existing circuits
- Dual 1/8″ NPT ports: Ports 1 and 2 accept standard pneumatic fittings
- High flow capacity: Rated for 300L/min at rated pressure
- Noise control: Integrated silencer limits outlet noise to 86 dB(A)
- Durable construction: Die-cast zinc body with NBR elastomer seals for long service life
Technical Specifications
Typical Applications
- Pilot-operated directional control valves
- Pneumatic cylinder speed control circuits
- Automated pick-and-place machinery
- Industrial actuator exhaust venting
- Mobile and farm equipment pneumatics
- Manufacturing assembly line controls
Compatibility & Replacements
Compatible With
- ISO 4401 (CETOP 05) valve manifolds
- Pneumatic circuits operating 1–2 bar pilot pressure
- Standard 1/8″ NPT threaded pneumatic networks
- OEM pilot-operated cylinder systems
Replaces / Drop-In Replacement For
- Part number SEU18NPT (equivalent designation)
Works With
- Parker, Bosch Rexroth, Moog, and other pneumatic directional controls accepting 1/8″ NPT quick-exhaust cartridges
- Manifold sandwich and cavity-mounted configurations
- Festo quick-connect pneumatic couplings (optional adapters)
