FRP Cut Throat Flumes

FRP Cut Throat Flume We are World largest manufacturer of fiberglass reinforced plastic (FRP) Cut Throat Flumes. Ni-Plast flumes are most accurate, molded flumes without any joint. Flume has engraved, molded and in - built gauge plate for discharge measurement in lit/second and cusecs. Any non-technical person or farmers can understand discharge easily. FRP is 100% anticorrosive material and having impact strength just like steel and completely maintenance free for years together. Moulded arrow is given to understand flow direction. Discharge table is attached with information of calibration formula, installation procedure and ready recknor for discharge.
Application :- Discharge measurement in laboratory, research institutes, irrigation canal and waste water from factories

Range of Cut Throat Flume - (One cusecs=28.32 lit/second=0.02832 cumecs)
  1. 20x90 & 30x90 section - 0.33, 0.5, 1, 2, 3 and 4 cusecs.
  2. 40x180 & 60x180 section - 5, 6, 8, 10, 12, 15, 18 and 20 cusecs.
  3. 60x270 & 100x270 section – 25, 30, 35, 40, 50, 60, 70 and 80 cusecs
Note : Electronic Recorders are available on demand for automatic discharge recording.


We supply a comprehensive range of Cut Throat Flume. Cut-Throat Flumes (CTF) are preferably recommended for field conditions for theirs simple design compared to other flumes. CTF is made up of two sections one converging & the other diverging. The throat section is avoided as suggested by the name ‘Cut-throat’ which indicates this special feature with a flat bottom surface and vertical walls. Discharge range measurable is from 0.33 cusecs (10 lit/sec) to 80 cusecs (2400 litter/sec.). Most suitable for field conditions because of the flat bottom, which avoids the silt obstruction problem and makes installation easy. Head loss is more and accuracy in results is 92%.

Salient Features :

  • CTFs are made up of prefabricated Fiberglass Reinforced Plastic (FRP) lining.
  • Most accurate in dimensions and has an extremely smooth surface.
  • Cut-throat flume sections confirm to Small Hydraulic Structures - FA0 26/2.
  • 100% anticorrosive, maintenance free and durable. Life up to 50 years.
  • Moulded and engraved discharge table with details of calibration & installations.
  • Moulded and engraved gauge marking shows discharge in lit/sec & cusecs.
  • Ease to install due to readymade shape.
  • Choice in selection of section as per hydraulic parameters of irrigation channel.
  • Automatic gauge recorder for accurate discharge measurement & data recording.