The telescopic rod filter, also known as the telescopic rod type filter, is a device for medium filtration in pipeline systems. It achieves axial telescopic adjustment through a rod mechanism and is primarily used in scenarios requiring filtration and compensation for pipeline displacement, such as in petrochemical industries and water supply and drainage systems.

Core Features

‌Adjustable Expansion: Standard axial expansion up to 100mm, capable of compensating for pipeline installation errors or thermal expansion displacement.‌

‌Filter Function: Utilizes stainless steel filter mesh (options of 80-200 mesh), effectively intercepts impurities to protect downstream equipment.‌

‌Maintenance Convenience: Filters can be quickly removed and cleaned, with a recommended maintenance cycle not exceeding 6 months.‌

Application Scenarios

‌High Temperature Operation: Suitable for medium temperatures of 0-80°C, capable of handling high-temperature media such as steam, oil products, etc.‌

Complex Pipelines: Often used in circulating water systems with pressure fluctuations or frequent cleaning requirements.

Special Requirements: Anti-static devices must be installed in the gas transmission pipeline. Corrosive medium conditions can be upgraded to 316L stainless steel or plastic-lined shell.

Installation and Maintenance

Installation Steps:

Check that the expansion joint has no visible damage and confirm the size matches the pipeline.

Horizontally or vertically mounted on straight pipe sections, adjusted to align with the axis of the adjacent pipe.

Fixed bracket or hanger, ensuring no displacement during operation.

Maintenance Points:

Regularly inspect the lubrication condition of the pole threads.

The drain valve is designed with a downward 45° slope for easy debris discharge.

The housing material can be selected from corrosion-resistant options such as carbon steel and ductile iron.