PRECISION GAS FLOW METERS & GAS FLOW CONTROLLERS

Variable Area Flowmeters for Gases with attractive Design

Variable Area Flowmeters (VA-Flowmeters) for Gases Q-Flow

Our proven Q-Flow is a modern VA-flowmeter for gases built on the variable area principle.

Designed in close collaboration with users, it combines our long experience and practical shop-floor requirements.

Measuring Tubes in 3 Sizes

The flow meters are available with three different glass tube lengths.

Measuring ranges from 0.04 ln/h up to 5000 ln/h for Air @ 1.21 bara / 20°C
Maximum pressure: 20 bar / Maximum temperature: 100°C

Variable Area Flowmeters Q-Flow with 3 measuring tube sizes

Intelligent Instrument Design

The compact and attractive design enables quick replacement of components

Measuring Tube Scales

In addition to mm scales with flow rate table, glass tubes with direct reading or custom scales are available

Aluminium or Stainless Steel

The bodies are available in aluminium or stainless steel. Sealing materials FKM or EPDM

Tightly closing precision control valves

The devices are equipped with precise, hysteresis-free 15-way control valves. Different rotary knobs are available:

  • Standard knob
  • Standard knob and locking ring
  • Hex socket and locking nut instead of standard knob

See Needle Valves M-Flow for more information

3-Year Warranty

High-quality components ensure long and trouble-free operation
(does not apply to calibration, options and accessories)

Types & Options Q-Flow Variable Area Flowmeters (VA-Flowmeters)

Variable Area Flowmeters (VA-Flowmeters) for Gases Q-Flow – Aluminium Version

 

Q-Flow Variable Area Flowmeter
Aluminium version
Valve at the Inlet

Variable Area Flowmeters (VA-Flowmeters) for Gases Q-Flow – Stainless Steel Version

 

Q-Flow Variable Area Flowmeter
Stainless steel version
Valve at the Inlet

Variable Area Flowmeters (VA-Flowmeters) for Gases Q-Flow – Stainless Steel Version without Valve

 

Q-Flow Variable Area Flowmeter
Stainless steel version
Without valve

Variable Area Flowmeters Q-Flow with 3 measuring tube sizes

 

Q-Flow Variable Area Flowmeter
All versions are available in 3 different sizes
with valves at the inlet or outlet or without valve

Downloads Q-Flow Variable Area Flowmeters (VA-Flowmeters)

139-2004_de_infoQVMflow.pdfV-Flow Line Product InformationProduct DatasheetsEN, DEEN, DE
139-2011_de_infoQ-flow.pdfQ-Flow Product InformationProduct DatasheetsEN, DEEN, DE
139-3001_de_manualvflow.pdfV-Flow Line Operating InstructionsOperating InstructionsEN, DEEN, DE

 

Looking for a Digital Alternative?

Battery Powered Digital Mass Flow Meters with Needle Valve

  • AA battery powered device with touch display
  • MEMS sensor technology
  • High accuracy & dynamics
  • Wide choice of flow units
  • Use as a meter, regulator or switch
  • Measuring ranges from 25 mln/min up to 450 ln/min
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