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
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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
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