F V A metal tube float flow meter adopts variable area measurement principle. It has the characteristics of solid and reliable structure, wide temperature range, high precision, low price, and can be used for flow measurement in a variety of occasions. It can be widely used for liquid and gas flow measurement in national defense, chemical industry, petroleum, metallurgy, electric power, environmental protection, medicine and light industry.
①Suitable for small pipe diameter and low flow rate
②The requirements for the downstream straight pipe section are not high
③There is a wide flow range of 10:1
④The intelligent indicator has LCD liquid crystal display, which can display instantaneous and cumulative flow, and can also output pulses and output alarms.
⑤There are various forms such as in-situ type, remote transmission type, jacket type, explosion-proof, corrosion-resistant, etc.
Measuring range | Liquid: 2.5~160000L/h Gas: 0.07~4000m3/h (0.1013MPa 20°C) |
Turndown ratio | 0:01 |
Nominal pressure (MPa) |
|
Accuracy class | 1.0、1.5、2.5 |
Work pressure | DN15, DN25, DN50 are PN4.0MPa and the maximum is 10.0MPa, DN80 and DN100 are PN1.6MPa and the maximum is 6.4MPa |
Medium temperature | -40°C~300°C |
Medium viscosity | DN15:η<5mPa·s(F15.1~F15.3)η<30mPa·s(F15.4~F15.8) DN25:η<250mPa·s DN50~DN150:η<300mPa·s |
Electrical parameters | |
Cable interface | M20×1.5 |
Power supply and output | 2 4 V D C Two-wire system 4 ~ 20 m A or 85 ~ 2 6 5 V A C50/60Hz (remote transmission type) |
Alarm Output | Upper or lower limit instantaneous flow alarm Relay output (maximum contact capacity 5A 250VAC) or open collector output (maximum 100mA 30VDC internal impedance 100Ω) |
Pulse output | Cumulative pulse output, the minimum interval is one pulse every 10 seconds (interchange Flow pattern) or one pulse every 50 milliseconds. |
LCD | Double-row liquid crystal display, showing instantaneous flow and cumulative flow. |
Other parameters | |
Ambient temperature | Liquid crystal type: -40°C~85°C Pointer type: -40°C~120°C |
Connection Type | Flange (implement standard DIN2501 or manufacture according to user-provided flange standard) |
Alarm Output | Upper or lower limit instantaneous flow alarm Relay output (maximum contact capacity 5A 250VAC) or open collector output (maximum 100mA 30VDC internal impedance 100Ω) |
Intrinsically safe explosion-proof | Exia II CT4 |
Measuring tube material | 316 stainless steel (common type) or lined with PTFE (anti-corrosion type) |
FVA Metal Tube Float Flow meter | ||
Indicator | Z | Basic indicator |
D | Remote indicator | |
Nominal diameter | 15 | DN15 |
25 | DN25 | |
40 | DN40 | |
50 | DN50 | |
80 | DN80 | |
100 | DN100 | |
150 | DN150 | |
structure type | Range: select the code according to the measurement range table | |
- | Bottom in and top out | |
H1 | Left in right out | |
H2 | Right in and left out | |
AA | Side in side out | |
LA | Bottom in and side out | |
S | Threaded connection | |
M | Quick connector connection | |
Wetted material and lining | R1 | 321 stainless steel |
FR4 | 304 stainless steel (standard) | |
R6 | 316 stainless steel | |
R6L | 316L stainless steel | |
HC4 | Ha C alloy | |
Ti | titanium | |
F | Wetted coffin 304, lined with PTFE | |
Indicator type | M7 | Linear indicator |
M9 | Non-linear indicator (in-situ pointer shows instantaneous flow) | |
B | Intelligent type: Lithium battery power supply, no signal output on site display | |
Display and output | E | 24VDC; remote 4-20mA standard current signal |
Z | 24VDC; remote transmission 4-20mA; on-site LCD display instantaneous and cumulative flow | |
D | On-site lithium battery power supply; LCD display instantaneous and cumulative flow | |
Alarm function | K1 | With an upper limit alarm point signal |
K2 | With lower limit alarm point signal | |
K12 | With an on-line and off-line alarm point signal | |
Explosion-proof type | Ex | Intrinsically safe explosion-proof |
Exd | Flameproof | |
Medium | L | liquid |
G | gas | |
Add feature | T | Measuring tube with thermal insulation/heat insulation jacket |
HT | The temperature of the measuring medium is greater than 120 ° high temperature |
◉ Vertical installation type appearance and installation dimensions
Nominal diameter (mm) | Instrument withstand voltage | D0 | D | f | n-Φd |
DN15 | 4 | 65 | 95 | 224 | 4-Φ14 |
DN25 | 4 | 85 | 115 | 245 | 4-Φ14 |
DN40 | 4 | 110 | 150 | 266 | 4-Φ18 |
DN50 | 4 | 125 | 160 | 285 | 4-Φ18 |
DN80 | 1.6 | 160 | 195 | 306 | 8-Φ18 |
DN100 | 1.6 | 180 | 215 | 336 | 8-Φ18 |
DN150 | 1.6 | 240 | 280 | 366 | 8-Φ18 |
◉ Horizontal installation type appearance and installation dimensions
Diameter DN (mm)) | Withstand pressure (MPa) | D0 | D | f | n-Φd |
15 | 4 | 65 | 95 | 224 | 4-Φ14 |
25 | 4 | 85 | 115 | 245 | 4-Φ14 |
40 | 4 | 110 | 150 | 266 | 4-Φ18 |
50 | 4 | 125 | 160 | 285 | 4-Φ18 |
80 | 1.6 | 160 | 195 | 306 | 8-Φ18 |
100 | 1.6 | 180 | 215 | 336 | 8-Φ18 |
DN150 | 1.6 | 240 | 280 | 366 | 8-Φ18 |
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Measuring range , medium, Installation method (flange, thread), Pressure range, Remote transmitter, Level alarm switch
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