Rotameter Flow Meter

Rotameter Flow Meter

Rotameter Flow Meter

Rotameter flow meter ,In a vertical tapered tube that expands from bottom to top, the gravity of the float with a circular cross-section is borne by the hydrodynamic force, and the float can rise and fall freely in the tapered tube. It moves up and down under the action of flow velocity and buoyancy, and after being balanced with the weight of the float, it is transmitted to the dial to indicate the flow through the magnetic coupling. Generally divided into glass and metal rotameters. Metal rotor flowmeters are the most commonly used in the industry. For corrosive media with small diameters, glass is usually used. Due to the fragility of the glass material, the key control point is also a rotor flowmeter made of precious metals such as titanium.
 

Technical parameters:
1, measuring range: water (20℃) : 1-200000I/h;Air (20℃) 0.1.13MPa 0.03~4000m3/h;
2, range ratio: standard type: 10:1;Special type: 20:1;
3, accuracy: standard: 1.5 level;Special type: grade 1.0;
4. Pressure level:Standard type: DN15-DN50 4.0MPa;DN80-1.6 Mpa DN200;
Special type :DN15-DN50 25MPa DN80-DN200 16MPa;
5, pressure loss: 7KPa ~ 70KPa;
6, medium temperature: standard type: -40℃ ~ 100℃;High temperature type: 100℃ ~ 450℃;
7, medium viscosity:
DN15: n<S (F15.1-F15.3) N<S (F15.4-F15.8);
DN25: n<30 mpa. S;
8, ambient temperature: remote transmission type: 40℃ ~ 185℃ (liquid crystal will not damage) liquid crystal normal work at -30℃ ~ 80℃;
9, connection form: standard type: DN201 standard flange;Special type: any standard flange or thread specified by the user;
10, cable interface: flameproof type for 1/2NPT internal thread, other M20 ‘1.5 internal thread;
11. Power supply:
Standard: 24VDC two-wire 4-20mA (12VCD-32VCD;
Alarm type: 24VDC three-wire 4-20mA (18VCD-28VCD;
AC type: 85-265VCD 50Hz;
Battery type: 3.6V, 7.5Ah lithium battery, can be used for three years;
Parameter

Flow range

Diameter (mm)

Flow range

Pressure loss KPa

Accuracy level

15

Water L/h

Air m3/h

Water

Air

Normal temperature type

Anticorrosive

Normal temperature type

,Anticorrosive

   

2.5—25

2.5—-25

0.07–0.7

0.07—0.7

6.5

7.1

1.5
       2.5

4.0—40

4.0—40

0.11—1.1

0.11—1.1

7.2

3.6—63

6.3—63

0.18—1.8

0.18—1.8

6.6

7.3

10—100

10—100

0.28—2.8

0.28—2.8

7.5

16—-160

16—160

0.4—4.0

0.4—4.0

6.8

8.0

25—-250

25—-250

0.7—7.0

0.7—-7.0

7.2

10.8

40—400

40—400

1.0—10

1.0—-10

8.6

10.0

63—630

——-

1.6—16

———

11.1

14.0

25

100—1000

63—630

3.0—30

1.6—-16

7.0

7.7

160—1600

100—1000

4.5—45

3.0—30

8.0

8.8

250—2500

160—-1600

7.0—-70

4.5—-45

10.8

12.0

400—4000

250—2500

11—110

7.0—–70

15.8

19.0

50

630–6300

400—4000

18—180

11—–110

8.1

8.6

1000—10000

630—6300

25—-250

18—-180

11.0

10.4

1600—16000

1000—10000

40—-400

25—-250

17.0

15.5

80

2500—25000

1600—16000

60—600

40—-400

8.1

8.0

4000—40000

2500–25000

100—-1000

60—600

9.5

13.0

100

6300—63000

4000—40000

200—2000

100—-1000

10.0

11.0

    

10000—100000

——-

300—-3000

——–

The selection model :
1. For the selection of remote transmission type metal tube float rotameter, it is necessary to choose a rotameter suitable for the explosion-proof type requirements of the place of use; when installing, pay attention to the fastening of the casing and the sealing of the wiring port after the meter is energized, and it has reached explosion-proof , Protection and anti-corrosion requirements.
2. For places where the temperature of the measured medium is too high (>120℃) or too low, it is usually necessary to take heat preservation or heat insulation measures for the sensor part of the rotameter to ensure that the signal converter —— the indicator is normal For working environment temperature, high temperature indicator should be selected.
3. For some measured media that need to be insulated or cooled, a jacketed rotameter should be selected. The heating or cooling interface of the standard metal tube float rotor flowmeter adopts DIN2501 DN15 PN1.6 flange connection. If other flanges or threaded connections are required, please specify when ordering.
4. For the unstable pressure of the inlet medium of the rotameter, especially for gas measurement, a damping structure should be selected to ensure accuracy and service life.
5. The pressure level required for the medium is relatively high. When the pressure level exceeds the standard pressure level, please select the high-pressure type structure when selecting the high-pressure type. The high-pressure type adopts HG20595-97 RF necked butt-welded steel pipe flanges. If other standards are used, please specify when ordering.
6. When installing the rotameter, ensure that the verticality of the measuring tube is better than 5%, and a bypass should be installed to facilitate maintenance and cleaning without affecting production.
7. The position for installing the rotameter should ensure that the inlet has a straight pipe section ≥5DN and the outlet is not ≤250mm; if the medium contains ferromagnetic substances, a magnetic filter should be installed in front of the rotameter.
8. The control valve in the measurement and control system should be installed downstream of the rotameter. When used for gas measurement, ensure that the working pressure is not less than 5 times the pressure loss of the rotameter to make the rotameter work stably.

9.Before installing the metal tube float rotameter, the welding slag in the pipeline should be purged clean; when installing, remove the stop element in the rotameter; when using after installation, slowly open the control valve to avoid impact damage to the rotor flow meter.

FAQ
1.Why do you order from the JUNYUAN?
The JUNYUAN company can provide you competitive price.
2.What about the delivery time?
Honestly, it depends on the order quantity and the season you place the order .for bulk order which production lead time is within 1~3 weeks.Generally speaking, small QTY are in stock
3.What is your payment method?
T/T, Western Union, Moneygram, Paypal ,Credit card are available for us
4.Can you make my logo on product?
Of course! we are factory,we supply OEM ,You only need provide us your original logo file or clear picture, so we can make it.
5. How to delivery ?
Shipped by express for sample order and small order, express include DHL, UPS, TNT, EMS, etc. Shipped by sea or by air for bulk order.
6.What is your terms of delivery?
We accept EXW, FOB, CIF etc. You can choose the one which is the most convenient or cost effective for you.

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