Description
Flange Thermal Mass Flow Meter | RWMF
Table 1: Flange Thermal Gas Mass Flow Meter Parameter
| Measuring Medium |
Various Gasses (Except acetylene) |
| Pipe Size |
(Insert connection) DN50-DN2000mm ,In-line connection(DN10-DN2000mm) |
| Velocity |
0.1-100Nm/s |
| Accuracy |
+/-1~2.5% |
| Working Temperature |
Sensor:-40~+220 degC Transmitter:-20~+45 degC |
| Working Pressure |
Insertion Sensor: medium pressure ≤1.6Mpa
Flanged Sensor: medium pressure ≤4.0Mpa
Special pressure please double check |
| Power Supply |
Compact type: 24VDC or 220VAC, Power consumption ≤18W
Remote type:220VAC,Power consumption ≤19W |
| Response Time |
1s |
| Output |
4-20mA (optoelectronic isolation,maximum load 500Ω),Pulse RS485 (optoelectronic isolation) and HART |
| Alarm Output |
1-2 line Relay, Normally Open state, 10A/220V/AC or 5A/30V/DC |
| Sensor Type |
Standard Insertion, Hot-tapped Insertion and Flanged |
| Construction |
Compact and Remote |
| Pipe Material |
Carbon Steel, Stainless Steel, Plastic etc. |
| Display |
4 lines LCD Mass flow, Volume flow in standard condition, Flow totaliser, Date and Time, Working time, Velocity, etc. |
| Protection |
IP65 |
Table 2: Flange Thermal Gas Mass Flow Meter Sizing
| Nominal Diameter |
Flange outer diameter |
Center hole |
Bolt hole |
Screw Threads |
Sealing face |
Flange thickness |
Installation length |
| DN |
D |
k |
n x L |
d |
f |
C |
L |
| 15 |
95 |
65 |
4×14 |
M12 |
46 |
2 |
14 |
280 |
| 20 |
105 |
75 |
4×14 |
M12 |
56 |
2 |
16 |
280 |
| 25 |
115 |
85 |
4×14 |
M12 |
65 |
2 |
16 |
280 |
| 32 |
140 |
100 |
4×18 |
M16 |
76 |
2 |
18 |
350 |
| 40 |
150 |
110 |
4×18 |
M16 |
84 |
2 |
18 |
350 |
| 50 |
165 |
125 |
4×18 |
M16 |
99 |
2 |
20 |
350 |
| 65 |
185 |
145 |
4×18 |
M16 |
118 |
2 |
20 |
400 |
| 80 |
200 |
160 |
8×18 |
M16 |
132 |
2 |
20 |
400 |
| 100 |
220 |
180 |
8×18 |
M16 |
156 |
2 |
22 |
500 |
Table 3: Common Use Gas Maximum Range
| Calibre
( mm ) |
Air |
Nitrogen ( N2 ) |
Oxygen ( O2 ) |
Hydrogen ( H2 ) |
| 15 |
65 |
65 |
32 |
10 |
| 25 |
175 |
175 |
89 |
28 |
| 32 |
290 |
290 |
144 |
45 |
| 40 |
450 |
450 |
226 |
70 |
| 50 |
700 |
700 |
352 |
110 |
| 65 |
1200 |
1200 |
600 |
185 |
| 80 |
1800 |
1800 |
900 |
280 |
| 100 |
2800 |
2800 |
1420 |
470 |
| 125 |
4400 |
4400 |
2210 |
700 |
| 150 |
6300 |
6300 |
3200 |
940 |
| 200 |
10000 |
10000 |
5650 |
1880 |
| 250 |
17000 |
17000 |
8830 |
2820 |
| 300 |
25000 |
25000 |
12720 |
4060 |
| 350 |
45000 |
45000 |
22608 |
5600 |
| 400 |
70000 |
70000 |
35325 |
7200 |
| 450 |
100000 |
100000 |
50638 |
9200 |
| 500 |
135000 |
135000 |
69240 |
11280 |
| 600 |
180000 |
180000 |
90432 |
16300 |
| 700 |
220000 |
220000 |
114500 |
22100 |
| 800 |
280000 |
280000 |
141300 |
29000 |
| 900 |
400000 |
400000 |
203480 |
36500 |
| 1000 |
600000 |
600000 |
318000 |
45000 |
| 2000 |
700000 |
700000 |
565200 |
18500 |
Table 4: Flange Thermal Gas Mass Flow Meter Model Selection
| Model |
RWMF |
X |
X |
X |
X |
X |
X |
X |
| Calibre |
DN15-DN4000 |
|
|
|
|
|
|
|
| Structure |
Compact |
C |
| Remote |
R |
| Sensor type |
Insertion |
I |
| Flange |
F |
| Clamp |
C |
| Screw |
S |
| Material |
SS304 |
304 |
| SS316 |
316 |
| Pressure |
1.6Mpa |
1.6 |
| 2.5Mpa |
2.5 |
| 4.0Mpa |
4.0 |
| Temperature |
-40-200℃ |
T1 |
| -40-450℃ |
T2 |
| Power Supply |
AC85~250V |
AC |
| DC24~36V |
DC |
| Signal Output |
4-20mA+Pulse+RS485 |
RS |
| 4-20mA+Pulse+HART |
HT |
Flange Thermal Mass Flow Meter | RWMF
Brand
Royce Water Systems
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