Open Channel Flow Measurement 'Flumes and Weirs'

Flumes are used for both open channel flow measurement and storm water overspill flow control. They are used almost universally for measuring the in-flow to sewage treatment works. Flumes readily fit into new or existing rectangular channels.

Thin plate weirs are used extensively for the flow measurement of industrial trade effluents to water authority sewers and final effluent discharge to Environment Agency controlled waters (Rivers, Streams etc).

SIRIS have a range of standard BS/ISO designed weirs which cover a broad range of flows for various discharge applications. All flumes and weirs are designed to ensure compliance with both BS/ISO and MCERTS standards.

SIRIS BS/ISO Thin Plate Weirs

SIRIS Standard Weir Plates

Hmax (mm)

Qmax (l/s)

SIRIS RTPW-400*

300

117.61

SIRIS RTPW-300*

300

88.4

SIRIS RTPW-200**

300

58.6

SIRIS RTPW-150**

300

44.85

SIRIS VTPW1/290**

300

34.01

SIRIS VTPW1/4900***

300

17.43

SIRIS VTPW-20***

300

12.46