Project Description

Temporary Strainers are generally used at startup of pipe lines to filter larger debris and foreign objects that may be present during construction and startup. They may be conical or truncated. Flow and media determines the direction of the strainer.

Temporary Strainers are used for start-up of new or revamped piping systems. They will prevent construction debris from causing damage to downstream equipment. The screen cone is tig welded around the entire circumference of the flange ring to provide strength and prevent unwanted bypass. Additionally Contact Us for more information.

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.

Basket type strainers protect equipment by removing solids from liquids and other piping systems with the use of a perforated or wire mesh straining screen in a vertically oriented chamber.

Features – continued

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: Strainer support rings can be constructed to accommodate raised face flanges, ring type joint flanges or any other standard flange facing.
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

Cone type strainers can be temporary and put in pipelines to protect equipment from debris and particles.

Ordering Information

Example: Include full description



4” Temporary Cone Strainer, Stainless Steel, ASME Class 150, 150% Open Area and 1/8” Perf. Screen

When ordering specify:

Pipe Size

  • Pressure Rating/Flange Rating
  • Perforation or Mesh size
  • Material
  • Style – Cone, Basket, etc.
  • Direction of flow – Straight or Reverse
  • Percentage of open area or length
Plate type strainers involve a flat plane of mesh that stretches perpendicular to the system's flow.

Conical Strainers


Conical strainers are perforated devices of perforated or woven mesh to catch particles in a pipeline.

Sometimes, these can be temporary and put in pipelines to protect equipment from debris and particles. Conical strainers are shaped like a cone, or witch’s hat.


Conical strainers can catch particles down to .001 inch in diameter. Cone strainers have little pressure drop, and can be removed after startup, and the debris is evacuated.


The sizing of Conical strainers is important to ensure the strainer screen can block particles that could damage equipment.



Process Industry
Water and Wastewater
Power Industry
Pulp and Paper
Chemical Industry
Oil and Gas
Steel Mills
Metals and Mining
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Cone, basket & plate strainers
100% to 300% open area range (OAR) as standard
Custom engineered designs available

Stainless Steel
Carbon Steel
Other Alloys upon request

Wafer Flat Faced
Raised Face
RTJ Flanged

3/4″ (20mm) up to 24″ (600mm) as standard
Larger sizes available upon request