Maintaining a specified level of fluid cleanliness is critical to the operation and reliability of aerospace fluid systems and equipment. A filter assembly consists of a filter housing and a high-performance filter element. Where specified, it can include bypass valves, differential pressure monitoring devices, and other sampling points.

Features

• Incorporates high performance filter elements using Pall proprietary media
• High-strength construction
• Filter Bowl & Filter Head meet fatigue and pressure requirements (dependant on application)
• Low differential pressure
• Bowl-locking mechanism to prevent filter bowl loosening under vibration in service

Benefits

• Improved system performance and reliability
• Light-weight designs
• Small space envelope
• Qualified to stringent OEM requirements

How Does it Work?

The system fluid enters the assembly through the inlet port. It flows through the inlet and into the filter element.

Filter Element

Particulate contamination including metals, dust, fibers, seal material, etc., is removed and captured by the filter element. The clean fluid then exits the assembly through the outlet port.

Monitoring Devices/Sensors

After a period of service, the element will become clogged and require replacement.  The Differential Pressure Indicator/Switch (DPI/DPS) located in the head of the filter assembly indicates when the filter element is becoming blocked and needs to be changed.

A thermal lockout device (optional) prevents false indication at cold start conditions

Bypass Valve

If the element is not changed, the differential pressure will continue to rise. Above a certain value, the bypass valve opens and the fluid passes directly through the filter head to the outlet port.

Shut-Off Diaphragm (optional)

This prevents loss of fluid during element change-out.