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Metal Rotameter
A float moves up in vertical measuring table according to fluid dynamics acting for float flowmeter HT50.The float displacement is in proportion to flow rate between float and orifice.Local display is a pointer from .It is able to have standard signal with rotary angle for electric signal or pnumatic transmitter for pneumatic signal. So that it is used with unit-complsed meter. Seriable HT50 flowmeter have advanced characteristic,such as simple construction,easy maintains,Liner Scale and reliable operating.And it could measure flow rate for liquids and gases. The flowmeter with uper and lower limite alarms could use in the control system.
Product Details
Functional
The serices HT50 flowmeter consists essentially of three basic parts:
the metering tube
the tapered float
the indicator.
The flow rate determines the position of the float, the meter float is in dynamic balance,when the difference between the weight of the float and the weight of the displaced fluid equals the upward pressure resulting from the fluid velocity through the meter .The annular area between the tapered float and the tube increases until the upward and downward forces are in dynamic balance.
Since the position of the float in the metering tube can not be seen,an indicator isrequired,this indicator employs a magnetic coupling where a magnet follows the position of the float .The float encase an AlNICO-transmitting magnet with two follower magnets arranged in parallel on the indicator shaft.
Product Characteristics
1. Rugged all-metal design
2. Easy stocking of parts thanks to modular concept
3. Complete interchangeability of all components and assemblies
4. Linear display
5. Adjustable to any fluid through replaceable cam plate
6. Shot-stroke design/parts do not project beyond the flanges,no matter what position the float is in
7. Electrical or pneumatic remote data transmission system
8. Limit switches can be installed
Technical Parameter(s)
1. Measuring range(100% values):
water (20℃) 6～15000 l/h;
Air (0.1013MPa 20℃) 0.05～4000 m3/h
2. Rangeability: 10:1
3. Accuracy class: 1.5 （Special version 1.0）
4. Operating data (Max pressure):
DN15～DN50 PN4.0MPa （Special versio 25MPa);
DN80～DN100 PN1.6MPa （Special versio 16MPa）
5. Medium temperature: -80℃～+220℃
6. Ambient temperature: Max 120℃(Max.60℃ if signal output is electrical);
7. Viscosity of fluid:
DN15:≤5mPa.s(H15.1～H15.3),≤30mPa.s(H15.4～H15.9);
DN25： ≤250mPa.s;
DN50～DN150：≤300mPa.s
8. Connection Standard：Flange to DIN2501 or ANSI; Special Other standards on request
9. Electaic: M20×1.5、PG11、1/2”NPT
10. Owerall height: 250mm
11. Protection category to DIN 40050: IP65
12. Explosion Proof : ExiaIICT3～6; ExdIIBT4
