Overview
The Numatics L22PP452O000000 is a precision air pilot-actuated control valve part of the L2 series lineup. Designed by ASCO Numatics and now part of the Aventics portfolio, this 4/2 detent valve delivers reliable directional control in compact pneumatic systems across manufacturing, automation, and process control applications.
Key Features
- Air pilot actuation with detent positioning—no power required for hold state
- Compact 1-inch body width optimized for inline and manifold mounting
- High flow capacity: 79 SCFM @ 80 PSIG (1,674 NI/min @ 6 bar)
- Rated pilot pressure range: 14.5–150 PSIG (1–10 bar)
- 4-way, 5/3-position spool configuration for bi-directional actuator control
- Available in solenoid pilot, air pilot, or hand lever actuation variants
Technical Specifications
- Part Number: L22PP452O000000
- Manufacturer: ASCO Numatics (Aventics)
- Series: L2
- Configuration: 4/2 (5/2) directional control, detent
- Actuation: Air pilot (pneumatic), no solenoid
- Port Connections: 1/4″ NPTF female threaded
- Pilot Pressure Range: 14.5–150 PSIG / 1–10 bar
- Main Valve Operating Range: 28″ Hg vacuum to 150 PSIG (vacuum to 10 bar)
- Flow Capacity: 79 SCFM @ 80 PSIG / 1,674 NI/min @ 6 bar
- Body Width: 1 inch (slim profile)
- Weight: 0.79 lbs
- Ambient Temp. Range (Air Pilot): -10°F to +150°F / -23°C to +66°C
- Cv Rating: 1.7
- Mounting: Inline or manifold (extruded aluminum, 2–12 stations)
Typical Applications
The L22PP452O000000 is widely used in high-cycle manufacturing environments including automotive assembly, bottling lines, press operations, life science equipment, and tire manufacturing. Its air pilot design makes it ideal for systems without electrical power availability or where solenoid coil failure risk must be minimized. The compact 1-inch profile suits inline valve banks and space-constrained manifold designs.
Compatibility & Replacements
Compatible With
- Pneumatic circuits rated 1–10 bar pilot pressure
- ISO 4401 (CETOP) standard NG10 manifold blocks
- Common supply / common exhaust and common supply / individual exhaust manifold configurations
- Pneumatic actuators requiring 4/2 directional control (cylinders, motors)
- Air-operated pilot systems with 1/4″ NPT or M16×2 port adapters
Replaces / Drop-In Replacement For
- Other L2 series 4/2 detent valves in the same pressure class
- Verify part number suffix codes before ordering—configuration variants (solenoid pilot, hand lever, ported manifold) differ
Works With
- Aventics L2 series compatible manifold blocks and cavity plates
- Pneumatic control systems using ISO 4401-05 (NG10) ported manifolds
- Air supply networks 1–10 bar (compressed air systems)
- Speed control cartridges and integral flow restrictor options available
- Lubricated and unlubricated air service configurations



