Areas of application:
The N4 orifice flow meter is used to measure the flow of clear liquids in closed pipelines. Fulfilment of DIN 19 643 makes the flow meter particularly ideal for treating and disinfecting swimming and bathing pools.
The N4 orifice flow meter is used in the following industries:
- Building services equipment, air conditioning and heating technology
- Water and wastewater
- Swimming pool technology
Advantages of the mechanical flow meter:
- Simple installation
- Fulfils requirements for treating and disinfecting swimming and bathing pools (DIN 19 643)
- Direct visualisation of the flow in the bypass
- Suitable for flexible installation positions without a loss of accuracy
- Available at short notice
Measuring tube connections:
- DIN EN 1092-1: DN 25 - DN 400
- ANSI B16.5: 1" - 16"
Measuring ranges | Liquids¹: 0,6 ... 1.600 m³/h Gases²: 12,0 ... 18.000 m³/h |
Accuracy class | ± 2 % of URV |
Pressure limits | max. 10 bar |
Temperature limits | 0 °C to +60 °C |
Flow directions | vertically upwards horizontally from left to right horizontally from right to left vertically downwards |
Process connections | DIN 2501: DN 25 ... DN 400 ANSI B16.5: (1“ ... 16“) |
Options | contact(s) orifice plate made of stainless steel orifice plate and bypass made of PP |
¹Standard measurement range for liquids (ρ = 1 kg/l, viscosity 1 mPa.s)
² Standard measurement range for gases (Pe = 0 bar pressure, T = 0 °C, ρ = 1,293 kg/m³, v = 0,0181 mPa.s)
- Provision of tender texts
Manual / technical data
Declaration of conformity
Arrange a consultation appointment
If you still have questions or need a special solution, please call or write us!
We look forward to receiving your contact and will be happy to call you back.
Your contact person:



