What are the Industrial Strainers and Filters?

Strainers and filters are often used interchangeably due to their shared purpose of removing undesirable particulates from liquids or gases. This article aims to elucidate the similarities and differences between industrial strainers and filters:

Similarities: Both strainers and filters serve the common objective of safeguarding downstream equipment by eliminating contaminants that could lead to damage or compromise the final product's quality. Additionally, they can be configured in a duplex design, allowing one to be cleaned or replaced while the other remains operational.

Differences: The primary distinction lies in their respective roles. Strainers are employed to remove larger suspended particles from liquids, while filters are designed to eliminate smaller unwanted particles from both liquids and gases. Strainers are constructed for easy removal and cleaning, minimizing equipment downtime and ensuring optimal functionality. Filters typically remove particles smaller than 40 microns and may cause a noticeable drop in pressure as liquids or gases pass through the medium.

Considerations when Purchasing a Strainer or Filter: Several factors should be taken into account when selecting an industrial strainer or filter:

1. Type of contaminants (or type of liquid or gas) - Understand the nature of the contaminants to choose the appropriate filtration solution.
2. Size and shape of contaminants - Opt for a mesh slightly smaller than necessary for effective removal.
3. System shutdown feasibility for cleaning and maintenance - If frequent shutdowns are impractical, consider a duplex housing that allows continuous operation while one strainer or filter is cleaned or replaced.
4. Flow rate and pressure - Higher-flow systems might encounter greater hindrances with filters due to their impact on flow rate and pressure.
5. Size and configuration of the pipeline - Consider the installation orientation (horizontal or vertical) suitable for the chosen strainer or filter.

In summary, both strainers and filters play crucial roles in maintaining cleanliness in liquids and gases. Strainers are ideal for visible contaminants, while filters excel at removing much smaller particles. Understanding their differences and selecting the appropriate solution based on the specific requirements of the system will ensure effective and efficient filtration.