HQD30, HQD40, P125 Oil Air Separator Element

Purpose of an Oil-Air Separator Element

Oil-air separator elements are critical components in oil-injected screw compressors, ensuring efficient separation of oil from compressed air. They play a vital role in maintaining system performance by:

• Separating oil and air: Ensures oil is effectively removed from the compressed air stream before it exits the compressor. This reduces oil carryover and keeps downstream systems clean.

• Preserving oil levels: By capturing and recycling oil, the separator minimises oil consumption, reducing maintenance costs and environmental impact.

• Protecting downstream equipment: Prevents oil contamination of tools, machinery, and processes, maintaining system integrity and product quality.

Components and Design

Separator elements consist of multiple layers of specialised filtration media designed to coalesce oil particles from the compressed air. These filters are housed in a metal casing and are often cylindrical or cartridge-like in shape.

High-quality separators are engineered for:

• Low pressure drop: Ensuring minimal energy loss during operation.

• Efficient oil removal: Capturing even microscopic oil particles to achieve high air purity.

Types and Considerations

• Pressure Tolerance: Separators must withstand the high pressures inside screw compressors without deformation or failure.

• Oil Compatibility: Designed for use with specific types of compressor oil, including synthetic and mineral-based oils.

• Replacement Intervals: Over time, separators become less effective and must be replaced according to the manufacturer’s guidelines to avoid increased oil carryover and pressure drops.

Choosing the Right Oil-Air Separator

When selecting a separator element:

1. Check Compatibility: Ensure it matches your compressor model and oil type.

2. Consider Operating Conditions: Select a separator designed for the pressures and temperatures typical of your compressor system.

3. Opt for High-Quality Options: Inferior separators can cause increased maintenance, oil consumption, and downstream contamination.