Flumes and Weirs: Thin Plate Weirs

Thin plate weirs are used for liquid flow measurement where high accuracy is required, and are widely used for industrial discharge and final effluent outfall applications.

All SIRIS type thin plate weirs are fabricated from Grade 316 stainless steel and machined with a laser. In addition the profile across the crest is as per BS/ISO.

We provide a range of thin plate weirs such as v‐notch & rectangular weirs. All weirs provided are a standard size and fit the SIRIS standard carrier plate system. Alternative size and specification weirs can be supplied for applications in which the standard SIRIS thin plate weirs cannot be be used, such as large rectangular notch systems and compound weirs.