Description
The Wilkerson WSA-04-FM0 is a high-performance inline liquid separator engineered to protect compressed air systems by efficiently removing bulk liquids — including water, oil aerosols, and other contaminants — before they reach downstream equipment. Built for demanding industrial and HVAC applications, this unit delivers dependable air preparation performance in a compact, durable package.
Key Features
- 1/2″ NPT port connections for straightforward inline installation
- 200 PSIG maximum operating pressure for robust system compatibility
- 50 SCFM flow capacity to support high-demand compressed air applications
- Zinc housing construction for strength, corrosion resistance, and long service life
- Nitrile (Buna-N) seal material offering excellent resistance to petroleum-based oils and common compressed air contaminants
- Internal automatic drain for hands-free, continuous liquid removal without manual intervention
Application & Benefits
The WSA-04-FM0 is ideal for use upstream of air regulators, lubricators, filters, and sensitive pneumatic components where bulk liquid carryover can cause damage or performance degradation. The internal automatic drain continuously purges accumulated liquids without requiring scheduled manual draining, reducing maintenance demands and minimizing downtime. The zinc housing provides a durable, lightweight alternative to heavier cast-iron designs while maintaining the structural integrity needed for pressurized service.
Specifications
- Brand: Wilkerson
- Model / SKU: WSA-04-FM0
- Port Size: 1/2″ NPT
- Maximum Operating Pressure: 200 PSIG
- Flow Capacity: 50 SCFM
- Housing Material: Zinc
- Seal Material: Nitrile (Buna-N)
- Drain Type: Internal Automatic







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