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All Metal Design – Variable Area Flow Meter
- All-metal design for low-flow applications
- Liquids and gases
- 4…20 mA or switch
- Differential pressure regulating of inlet and outlet pressure
- Adjusting valve
- Flange or threaded connection
All Metal Design – Low Flow – Variable Area Flow Meter
The KDS and BGK flowmeters are used for measuring the flow of liquid and gaseous products in pipes as well as dosing, monitoring, adjusting and controlling them. They show the current flow quantity in volume or mass per unit in time.
Measuring the volume flow rate of extremely low flow rates of liquids and gases
For process monitoring and regulation, the units are available with additional electrical equipment.
- Design for horizontal and vertical connections available
- A variety of sealing materials
- Wall mounting possibility (KDS-C)
- Differential Pressure Flow Controller (option) (KDS-R)
- High pressure versions (option)
- Flange version (BGK)
- Analog output KDS(BGK)-E
Applications
The following are some considerations for the use of such a flow meter in the application industry:
- In the chemical and petrochemical industry: The corrosive nature of many chemicals in the industry makes corrosion resistance a critical factor. An all-metal construction provides resistance to corrosion, ensuring the longevity and reliability of the flow meter. Low-flow variable area flow meters provide a visual indication of flow rates, and the all-metal construction contributes to accurate and reliable measurements, even at low flow rates, ensuring precise control over processes.
- In the oil and gas industry: Low flow variable area flow meters are designed to accurately measure and monitor low flow rates. This is important in applications where precise measurement of small quantities of fluids or gases is necessary. Low-flow variable area flow meters provide a visual indication of flow rates, and the all-metal construction contributes to accurate and reliable measurements, even at low flow rates.
- In the food industry: Low-flow variable area flow meters are designed for precise measurement of low flow rates, which can be important in applications where small quantities of ingredients need to be precisely controlled. Food processing may involve temperature variations. Metal flow meters typically exhibit good stability across a range of temperatures, ensuring accurate measurements in varying conditions.
- Low-flow variable area flow meters are designed to accurately measure and monitor low flow rates. In pharmaceutical manufacturing, precise control over the flow of liquids or gases is often crucial for maintaining the quality and consistency of pharmaceutical products.
Technical Data KDS, KDS-R
Measuring ranges
- Water: 0,1…1 l/h …20…200 l/h
- Air: 5…50 Nl/h …600…6000 Nl/h
Accuracy: Liquid/Gas: ± 3% (qG 50 acc. VDE/VDI 3513)
Process connections
- Material: stainless steel
- Process connection: 1/4″ NPT (F)
- Pressure rating: PN 40
Process temperature
- -40°C up to +130°C (w/o limit switches)
- -25°C up to +100°C (c/w electrical output)
Ambient temperature: -25°C…+70°C
Ingress protection: IP65 (EN60529)
Output signal
- inductive limit switches
- induktive limit switches (safety technology)
- Analog output 4…20 mA ; 2-wire (Tmax. 150 °C)
Certificates and Approvals
- Explosion protection:
- Gas PTB 00 ATEX 2048 X, Type of protection: II 2G Ex ia IIC T6-T4
- Dust ZELM 03 ATEX 0128 X, Type of protection: II 1D Ex iaD 20 T…°C
- SIL conformity acc. IEC-61508-2:2000 and IEC-61508-2:2010
Differential pressure regulator (KDS-R)
- Additional inaccuracy: ± 1,7 % of upper range value
- Regulator KDS-R: ± 5,0 % of upper range value
The KDS-R flowmeter can be used for stabilizing set flow quantities of liquid and gaseous products in pipes. The set quantity is kept constant independent of pressure changes during product inflow for type KDS-R…..N or a pressure change during product outflow for type KDS-R …..V.
Technical Data BGK
Measuring ranges:
- Water: 0,1…1 l/h – 20…200 l/h
- Air: 5…50 Nl/h – 600…6.000 Nl/h
Accuracy: Liquid/Gas: ± 3% (qG 50 acc. VDE/VDI 3513)
Process connections:
- Material: stainless steel
- Process connection: Flanges DIN EN 1092-1, ASME B16.5-2003
- Pressure: PN 40, Class 150, Class 300, Class 600
Process temperature:
- -40°C up to +130°C (w/o limit switches)
- -25°C up to +100°C (c/w electrical output)
Ambient temperature: -25°C…+70°C
Ingress protection: IP65 (EN60529)
Output signal:
- inductive limit switches
- induktive limit switches (safety technology)
- Analog output 4…20 mA ; 2-wire (Tmax. 150 °C)
Certificates and Approvals:
- Explosion protection:
- Gas PTB 00 ATEX 2048 X, Type of protection: II 2G Ex ia IIC T6-T4
- Dust ZELM 03 ATEX 0128 X, Type of protection: II 1D Ex iaD 20 T…°C
- SIL conformity acc. IEC-61508-2:2000 and IEC-61508-2:2010
