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MASS-STREAM®  Direct Mass Flow
Meters and Controllers for gases

Flowmeters of M+W Instruments are suitable for all kinds of applications in industrial, chemical, medical and laborarory environments. Basically the D-62xx series instruments consist of a metal block with a straight bore. Two stainless steel probes protrude inside the bore; a heater probe and a temperature probe. A constant difference in temperature (ΔT) is created between the two and the energy required to maintain this ΔT is dependent of the mass flow rate. For low flow rates (D-51xx series) the by-pass measurement principle is applied.

Based on the concepts of the D-51xx and D-62xx series mass flow meters, a compact mass flow controller is available. For flows up to 500 ln/min an integrated solenoid control valve is applied. These valves are of a modular construction. For flows more than 500 ln/min an external valve is applied.

Various kv-values are available: 6.6 x 10-2; 0.3; 1.0;

Our flowmeters can also  be furnished with pipe-on control valves for a large variety of applications.

Features:

  • Usuable for virtually every kind of gases
  • Very low pressure drop
  • Virtually pressure and temperature independent metering system
  • No inlet pipes needed (D-62xx series)
  • Optional with integrated flow display
  • Optional with totalisation
  • No maintance needed
  • Two body materials on stock (others on request)  

Flow capacities (based on air)

Mass Flow Meters
Ranges
Series D-5110 min. 5 ... 100 mln/min
max. 0,5 ... 10 ln/min
Series D-6210 min. 0,25 ... 5 ln/min
max. 1 ... 20 ln/min
Series D-6230 min. 1 ... 20 ln/min
max. 5 ... 100 ln/min
Series D-6250 min. 5 ... 100 ln/min
max. 20 ... 400 ln/min
Series D-6270 min. 25 ... 500 ln/min
max. 100 ... 2000 ln/min
Series D-6280 min. 150 ... 3000 ln/min
max. 250 ...  5000 ln/min
Series D-6290 min. 250 ... 5000 ln/min
max. 350 ... 7000 ln/min
(higher on request)


Mass Flow Controllers
Ranges
Series D-5111 min. 5 ... 100 mln/min
max. 0,5 ... 10 ln/min
Series D-5121 min. 0,5 ... 10 ln/min
max. 2,5 ... 50 ln/min
Series D-6211 min. 0,25 ... 5 ln/min
max. 1 ... 20 ln/min
Series D-6231 min. 1 ... 20 ln/min
max. 5 ... 100 ln/min
Series D-6251 min. 5 ... 100 ln/min
max. 20 ... 400 ln/min
Series D-6270/004

min. 20 ... 500 ln/min
max. 50 ... 1000 ln/min
(higher on request)

For more information see brochure Mass Flow Meters and Controllers for gases

Low Flow Mass Flow Meter / Controller

High Flow Mass Flow Controller

Mass Fl

Straight passage, no by-pass

Local display for flow rate or counter

Bronkhorst (UK) Ltd, Cathrine House, London Road, Sawston, CB22 3XE Cambridge, Tel +44 1223 833222
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