To start with temporary strainers are generally used at startup of pipelines to filter larger debris and foreign objects that may be present during construction and startup. Furthermore, temporary strainers may be conical or truncated. Hence, flow and media determines the direction of the strainer. In addition piping systems usually need industrial strainers.
In brief, temporary strainers are mostly used for start-up of new or revamped piping systems. Therefore, temporary strainers will prevent construction debris from causing damage to downstream equipment. Also the screen cone is welded around the entire circumference of the flange ring. Thus provides strength and prevents unwanted bypass.
Size: Range in sizes from 1/4” to 60” nominal pipe size as standard.
Open Area: Range in open area of strainer to cross section area of the pipe from 100% to 300% as standard.
Material Thickness: Gauge of strainer material ranges between 22 to 11 depending on hole size.
Perforation: Perforation hole sizes range from 1/16” to 1/4” as standard.
Type of Material: Materials include carbon steel, various grades of stainless steel and alloys.
Flange/Facings: Temporary strainer support rings can be made to work with standard flanges. For example raised face flanges, and ring type joint flanges.
Welding: Resistance welding, TIG and Oxyacetylene.
Liners/Covers: Available for small particle removal 200 through 10 mesh carbon steel; stainless steel, etc.
Straight Flow – Mesh on inside.
Reverse Flow – Mesh on outside.
Example: Include full description.
Temporary Strainer Size
4” Temporary Cone Strainer, Stainless Steel, ASME Class 150, 150% Open Area and 1/8” Perf. Screen.
In general, when ordering specify:
- First and foremost pipe size.
- Then pressure rating/flange rating.
- Next perforation or mesh size.
- Also material.
- As well as style – Cone, Basket, etc.
- In addition to the direction of flow – straight or reverse.
- Lastly the percentage of open area or length.
To begin with conical strainers are in the shape as a cone. Hence why they are called a cone strainer. A conical temporary strainer is a perforated devices of perforated or woven mesh to catch particles in a pipeline. Furthermore, Dannenbaum LLC can help with temporary conical strainers.
However, these are usually temporary and put in pipelines to protect equipment from debris and particles. Also conical temporary strainers are shaped like a cone, or witch’s hat.
Moreover, a conical temporary strainer can catch particles down to .001 inch in diameter. In addition cone strainers have little pressure drop, and can be removed after startup, and the debris is evacuated.
And the sizing of Conical strainers is important to ensure the strainer screen can block particles that could damage equipment.