Overview
The Airline Hydraulic U200F-05 check valve coupling is a miniature inline check valve designed for high-reliability hydraulic circuit applications. This U200F-05 unit combines compact construction with proven check-valve functionality, allowing free flow in one direction while blocking reverse flow to prevent system backpressure and component damage.
Key Features
- Compact mini check valve design for space-constrained installations
- 1/4″ NPT threaded ports for direct integration into hydraulic lines
- Low cracking pressure and minimal pilot-to-drain requirements
- Stainless steel or ductile iron construction for corrosion resistance
- Precision seat geometry reduces internal leakage
- Suitable for mobile, industrial, and aerospace hydraulic systems
Technical Specifications
| Part Number | U200F-05 |
| Manufacturer | Airline Hydraulic |
| Product Type | Mini Check Valve Coupling |
| Port Size | 1/4″ NPT |
| Connection Type | Threaded (NPT) |
| Flow Direction | One-way check valve (unidirectional) |
| Pressure Rating | Verify with manufacturer datasheet |
| Operating Fluid | Mineral hydraulic oil ISO 46 |
| Temperature Range | Verify with manufacturer datasheet |
| Body Material | Ductile iron or stainless steel |
Typical Applications
- Mobile hydraulic systems (excavators, loaders, dump trucks)
- Industrial machinery and presses
- Aerospace and defense hydraulic circuits
- Pump discharge lines requiring backpressure protection
- Pilot-operated valve control circuits
Compatibility & Replacements
Compatible With
- Airline Hydraulic component systems
- Standard ISO 1/4″ NPT threaded hydraulic connections
- Mineral-based hydraulic fluids (ISO VG 46 and similar viscosity grades)
- Pressure ranges typical of mobile and industrial hydraulic circuits
Replaces / Drop-In Replacement For
- Other Airline Hydraulic U200F-series mini check valve couplings
- Generic 1/4″ NPT inline check valves with equivalent pressure ratings
- Verify specific interchangeability with original equipment manufacturer documentation before substitution
Works With
- Hydraulic pump discharge circuits
- Load-holding valve assemblies
- Pilot-operated control systems
- Custom hydraulic manifold designs requiring inline check functionality



