Variable Area Flow Meter

Cost-effective robust measurement technology for liquids or gases without auxiliary power. Our portfolio includes variable area flowmeters with glass or all-metal from low flow rates up to high flow rates. Optionally the devices can be equipped with electronics e.g.: Limit switches, analog output and digital communication.

Type: BGN
All-metal variable area flowmeter

  • All-metal design
  • Process temperature up to +350°C
  • Process pressure up to PN 500
  • Electrical transmitter ES
  • Special materials e.g. Hastelloy or Monel
  • PTFE – lining available
  • Optionally with trace heating

Type: BGF
All-metal variable area flowmeter for all directions

  • Any flow direction
  • All-metal design
  • Process temperature up to +200°C
  • Process pressure up to PN 500
  • Electrical Transmitter ES
  • Optionally with heat tracing

Type: KDS, BGK
Low flow all-metal variable area flow meter

  • All-metal design for small quantities
  • Liquids or gases
  • 4…20 mA or switching outputs
  • Optionally with upstream or downstream pressure regulator and valve
  • Version with fine adjustment valve in inlet or outlet
  • Flange or threaded connection

Type: V31
Glass tube variable area flow meter

  • 2 Limit values
  • Float in stainless steel, PVDF
  • Flange / thread / hose connection
  • Installation lengths 375 / 400 / 425 / 450 / 500 mm

Type: K09, K09-R, K12, K17, K32
Low flow – variable area flow meter with glass measuring tube

  • Installation lengths 90 / 125 / 175 / 320 mm
  • Measuring ranges 0.02…0.25 to 10…100 l/h water
  • Optionally with upstream or downstream pressure regulator and valve
  • Version with fine adjustment valve in inlet or outlet
  • Switching contacts

Type: KSK, KSM
Variable area flow meter with plastic measuring tube

  • Plastic measuring tube Trogamide, polysulfone or PTFE
  • Accuracy ± 2% of end value
  • For liquids up to 50,000 l/h and gases up to 1420 Nm3/h
  • Flange, screw, hose and adhesive connection; switching contacts

Type: ES
Electrical transmitter

  • Analog output 4…20mA
  • NAMUR-contacts
  • Pulse output
  • HART, Profibus PA, Foundation Fieldbus