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Latest added news blog
CDI5450 Hot Tap Compressed Air Flow Meter
Kenny Laidlaw
Jun 14,2017
The CDI 5450 is a hot tap compressed air flow meter is a modified version of the 5400 compressed more >
Irrigation Flow Meter
  • Irrigation Flow Meter


Quick Overview

WPI-SDC Irrigation Water Flowmeter. Pipe diameter DN125 with standard PN16 flanges. Flow range Q1 12.5m³h, Q2 20m³h, Q3 250m³h and Q4 312.5m³h. IP68 Epoxy Coated Iron body with replaceable copper can mechanism. Additional pulse output options from 0.1 to 1 m³/pulse are available at the time of order. (Please order pulse modules separately). Dimensions: Length 250mm, diameter 250mm and height 303mm. Weight: 21.5Kg.
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The WPI-SDC flow meters are designed for monitoring sandy/dirty irrigation water using an undershot paddle wheel. An undershot wheel is a vertically mounted water wheel with a horizontal axle that is rotated by the flow of water through the pipe. The paddle wheel in the WPI-SDC irrigation flow meter is positioned so that the lower half of the paddle wheel is immersed in the flow. The motion of the paddle wheel is then proportional to the volume of water flowing through the flow meter.

The meter body is an epoxy coated iron with a Dry Dial, Copper Can design display with frost protection. The copper can mechanism can be replaced onsite without the need to remove the flow meter itself. The DN125 flanged connection is suitable for pressures up to 16 bar. The mechanical indicator allows for two optional pulse output at 0.1 and 1 m³/pulse. The WPI-SDC flow meter is ideal for irrigation and agricultural applications where flows may contain solid particles.

Copper Can Mechanism


  • Undershot paddle wheel meter type
  • Suitable for sandy/dirty irrigation water
  • DIN Flanged connections with max pressure 16 Bar.
  • Epoxy coated iron body
  • Copper Can display mechanism with frost protection
  • Onsite replaceable "drop-in" mechanism
  • Pulse output option
  • IP68 ingress protection
  • Security tamper evident wire lock & seal
  • Approved: EN14154:2005+A1, OIML R-49: 2006(E)


SpecificationsIrrigation Meter Max Permissible Error

 Size DN DN125
 R Q3/Q1 20
 Q4 m³/h 312.5
 Q3 m³/h 250
 Q2 m³/h 20
 Q1 m³/h 12.5
 Max Reading 999999.99
 Min Reading Litre 0.0001


Irrigation Meter Dimensions



Size: DN125
L: 250
H: 303
H1: 389
D: 250
D1: 210
nxM: 8 x M16
Weight: 21.5Kg




Due to the large size and weight of the WPI-SDC irrigation meter, the meters aren't available to purchase online. If you are interested in purchasing one of these flow meters, please contact us directly for a quotation. Email:

Availability: Stock Item


Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

Pulse Output
Optional pulse output for the WPI Irrigation Water Flow Meter.
or call us for a quote