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1. Precautions for metal rotor flowmeter
1. High temperature resistance, up to 450 ℃ Metal rotor flowmeter, metal tube float flowmeter, power bar flowmeter
2. Suitable for measuring small caliber and low flow rate gas, liquid, and steam flow
3. Magnetic coupling principle no leakage and high pressure resistance
4. Due to the influence of certain viscosity, it is not suitable to measure high viscosity media
5. When the flow rate exceeds 100m3/h water flow rate, the pressure loss is large
Dangerous situation
8. The most suitable installation method is vertical installation with bottom in and top out. 9. There are various forms to choose from, such as on-site pointer type, battery type, two-wire type, 220V AC power supply type, etc. When measuring high and low temperature (below -30 ℃) media, it is best to use a jacket type.
11. Not suitable for measuring media with large density changes. 12. It is not suitable to measure the flow rate of pulsating media (such as the outlet of a metering pump). 13. For gases, there is no temperature and pressure compensation in this table, which needs to be considered separately. When multiple instruments are densely installed or carbon steel process pipelines pass near the instruments, a distance of at least 100mm should be maintained from the instruments to avoid magnetic field interference. When measuring the flow rate of media containing a large amount of ferromagnetic particles, a magnetic filter should be installed in front of the instrument and regularly purged. 16. If using explosion-proof instruments for shaking, the round shell M4 indicator should be selected. 17. The requirements for the straight pipe section of the metal tube fl
2. Main parameters of metal tube float flowmeter
The parameters of metal tube float flowmeter are as follows
1. Measurement range: water (20 ℃) 1-200000 l/h, air (20 ℃, 0.1013MPa) 0.03-4000 m ³/h.
. Special flow rate can be customized according to needs. 2. Range ratio: Standard type is 10:1. 3. Accuracy level: Standard type is 1.0 level, and special type can reach 0.5 level. 4. Pressure level: Standard type is suitable for DN15-DN50 4.0MPa and DN80-DN200 1.6MPa, while special type is suitable for DN15-DN50 25MPa and DN80-DN200 16MPa. The jacket pressure is 1.6MPa, and special models need to be negotiated with the factory in advance. 5. Pressure loss: 7kPa-70kPa. 6. Medium temperature: Standard working range -80 ℃ -+200 ℃, manual opening. PTFE material is limited to 0 ℃ -85 ℃. High temperature type can reach up to 400 ℃7. Viscosity requirements: DN15：η＜5 mPa.s（F15.1-F15.3），DN25：η＜250mPa.s，DN50-DN150：η＜300mPa.s
8. Environmental temperature: LCD type -30 ℃ -+85 ℃, pointer type -40 ℃ -+120 ℃. 9. Connection form: Standard models use DIN2501 standard flanges, while special models allow users to customize flanges or threads. 10. Cable interface: M20 * 1.5. 11. Power supply options: The standard type is 24VDC two-wire 4-20mA (10.8VDC-36VDC), the AC type is 85-265VAC 50Hz, and the b
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