MTF variable area flow meter is measured by outputting 4~20 mA two-wire linear current signal, and the communication protocol is loaded. The remote configuration, monitoring, maintenance and calibration of the instrument can be realized. The pressure regulator (constant flow valve) can be selected to make the outlet flow stable.
Made in China. brand DDTOP, model MTF
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MTF Variable Area Flow Meter is an intelligent instrument developed by our company. It converts the fluid flow signal into corresponding analog voltage signal, outputs 4～20mA two-wire linear current signal and loads HART protocol for communication. With the features of high precision, low drift, and strong anti-interference ability, it can realize the remote configuration, monitoring, maintenance and calibration of the instrument and the flow measurement, supervision and management of the production process.
Operating Principle
The measured fluid flows in from the lower end of the measuring tube, and with the action of the fluid, a differential pressure is generated between the upper and lower ends of the float, and this differential pressure is the lifting force of the float. The float will remain in a certain position when the lifting force applied to the float is balanced with the gravity of the float. The measured flow rate corresponds to the position of the float in the measuring tube, as shown in Figure 1. through the float’s built-in magnet coupled with the detection of the magnetic steel on the axis of the indicator, the flow rate is displayed directly on the dial, or through the circuit conversion, the Hall sensor transforms the magnetic signal into electrical signal, and then processed by the controller, the flow rate is displayed on the LCD screen, 4-20mA current signal is output, loading a digital signal compliant with the HART protocol communication.
Features
1.It can measure liquid, gas and vapor, especially for the flow measurement with small flow rate and low Reynolds number, it has more unique advantages than other flow meters.
2.Lower pressure loss, generally is 4~9kpa, higher is 20kpa.
3.There is a wide flow range, generally is 10:1, the special design flow range can be extended.
4.The factory calibration adopts the method of 11 sections calibration, and the precision of the product reaches 1.0 grade.
5.It can select card sleeve connection, piping φ6mm、φ8mm、φ10mm、φ12mm. Flange connections can also be selected and the flange standard is determined according to user requirements.
6.Max pressure is 69Mpa
1. Main parameters
Water：2.5 L/h～100000L/h(20℃)
Air：0.07～1800m3/h(0.1013MPa, 20℃)
DN15, DN20：η＜5mPa.s（FZ15.1~FZ15.5）
η＜30mPa.s（FZ15.6，FZ15.15，FZ20.1~FZ20.4）
DN25, DN40: η＜250mPa.s
DN50, DN80, DN100: η＜300mPa.s
2. Classification
Basic type: apply to liquid measurement
Damping type: apply to gas and vapor measurement
Anti-corrosion type: lining with PTFE and apply to corrosive fluid measurement Jacket type: apply to the fluid needs to keep warm or cold.
Notice: There is no horizontal installation for anti-corrosion type or jacket type
| Model | Code | Content | ||||||||||
| MTF – | A | Pointer indicating type variable area flow meter | ||||||||||
| B | Digital display + remote transmission type variable area flow meter | |||||||||||
| C | Pointer indicating + remote transmission type variable area flow meter | |||||||||||
| D | Pointer indicating + digital display + remote transmission type variable area flow meter | |||||||||||
| 2 | PN10(1.0MPa) | |||||||||||
| 3 | PN16(1.6MPa) | |||||||||||
| 4 | PN20(Class150) | |||||||||||
| 5 | PN25(2.5Mpa) | |||||||||||
| 6 | PN40(4.0MPa) | |||||||||||
| 7 | PN50(Class300) | |||||||||||
| 8 | PN63(6.3Mpa) | |||||||||||
| 9 | PN100(10.0Mpa) | |||||||||||
| 10 | PN110(Class600) | |||||||||||
| …… | Other nominal pressures shall follow the actual code of sage X3 system | |||||||||||
| Z | Damping type | |||||||||||
| W | Non damping type | |||||||||||
| 2 | 11 | DN15 | 1/2″ | |||||||||
| 3 | 12 | DN20 | 3/4″ | |||||||||
| 4 | 13 | DN25 | 1″ | |||||||||
| 6 | 15 | DN40 | 1-1/2″ | |||||||||
| 7 | 16 | DN50 | 2″ | |||||||||
| 9 | 18 | DN80 | 3″ | |||||||||
| 10 | 19 | DN100 | 4″ | |||||||||
| / | ||||||||||||
| P | Wetted Material: lining with PTFE | |||||||||||
| 2 | Wetted Material: 304 | |||||||||||
| 3 | Wetted Material: 316 | |||||||||||
| 4 | Wetted Material: 316L | |||||||||||
| …… | Other material shall follow the actual code of sage X3 system | |||||||||||
| 0 | NA | |||||||||||
| i | Intrinsically safe | |||||||||||
| d | Explosion isolating | |||||||||||
| D | Fluid Temperature: 0℃＜T≤200℃ | |||||||||||
| G | Fluid Temperature: -40℃≤T≤0℃ 200℃＜T≤300℃ | |||||||||||
| S | Horizontal Installation | |||||||||||
| C | Vertical Installation | |||||||||||
| MTF – | □ | □ | □ | □ | / | □ | □ | □ | □ | |||
Example
MTF-B3W4/2dDC is Variable Area Flow Meter: Digital display + remote transmission type; Flange rate is PN1.6, Non damping type, Size DN25, Wetted material is 304, Isolation explosion type , Working temperature is 0℃＜t≤200℃, Vertical installation.
Model selection flow table
| Nominal Diameter | Connectable Flange | Float
Number |
Flow value（Water L/h; Air m3/h） | Pressure Loss (kPa) | ||||
| Water Calibration | Air Calibration | Water Calibration | Air Calibration | |||||
| Float material | Float material | |||||||
| 304 | PTFE | 304 | 304 | PTFE | 304 | |||
| DN15 | ≥DN15 | FZ15.1 | 25 | – | 0.7 | 6.5 | – | 7.1 |
| FZ15.2 | 32 | 25 | 1 | 6.5 | 5.5 | 7.1 | ||
| FZ15.3 | 40 | 40 | 1.2 | 6.5 | 5.5 | 7.2 | ||
| FZ15.4 | 50 | 60 | 1.5 | 6.5 | 5.6 | 7.2 | ||
| FZ15.5 | 60 | 100 | 1.8 | 6.6 | 5.6 | 7.3 | ||
| FZ15.6 | 80 | 160 | 2.5 | 6.6 | 5.8 | 7.4 | ||
| FZ15.7 | 100 | 250 | 3 | 6.6 | 6.1 | 7.5 | ||
| FZ15.8 | 130 | 400 | 4 | 6.7 | 7.3 | 7.8 | ||
| FZ15.9 | 160 | – | 4.9 | 6.8 | – | 8.0 | ||
| FZ15.10 | 200 | – | 6.2 | 7.0 | – | 8.9 | ||
| FZ15.11 | 250 | – | 7.7 | 7.2 | – | 10.0 | ||
| FZ15.12 | 320 | – | 9.9 | 7.9 | – | 10.4 | ||
| FZ15.13 | 400 | – | 12.3 | 8.6 | – | 10.8 | ||
| FZ15.14 | 500 | – | 15.4 | 9.9 | – | 12.4 | ||
| FZ15.15 | 600 | – | 18.5 | 11.1 | – | 14.0 | ||
| DN20 | ≥DN20 | FZ20.1 | 750 | – | 23 | 6.9 | 5.9 | 7.3 |
| FZ20.2 | 1000 | – | 30 | 7.1 | 6.2 | 7.5 | ||
| FZ20.3 | 1300 | – | 40 | 7.5 | – | 7.9 | ||
| FZ20.4 | 1600 | – | 49 | 7.8 | – | 8.2 | ||
| FZ20.5 | 2000 | 62 | 7.8 | – | 8.2 | |||
| DN25 | ≥DN25 | FZ25.1 | 1000 | 600 | 30 | 7.0 | 5.5 | 7.7 |
| FZ25.2 | 1300 | 1000 | 40 | 7.5 | 5.6 | 8.3 | ||
| FZ25.3 | 1600 | 1600 | 49 | 8.0 | 5.6 | 8.8 | ||
| FZ25.4 | 1800 | 2500 | 55.5 | 8.6 | 6.4 | 9.5 | ||
| FZ25.5 | 2100 | – | 65 | 9.5 | – | 10.5 | ||
| FZ25.6 | 2300 | – | 71 | 10.1 | – | 11.2 | ||
| FZ25.7 | 2500 | – | 77 | 10.8 | – | 12.0 | ||
| FZ25.8 | 2900 | – | 90 | 13.2 | – | 13.2 | ||
| FZ25.9 | 3200 | – | 100 | 14.2 | – | 14.1 | ||
| FZ25.10 | 3600 | – | 111 | 15.6 | – | 15.3 | ||
| FZ25.11 | 4000 | – | 123 | 16 | – | 16.5 | ||
| FZ25.12 | 4400 | – | 135 | 17.4 | – | 17.8 | ||
| FZ25.13 | 4800 | – | 148 | 18.8 | – | 19.0 | ||
| DN40 | ≥DN40 | FZ40.1 | 3000 | – | 93 | 7.2 | 6.2 | 7.8 |
| FZ40.2 | 3750 | – | 116 | 7.4 | 6.5 | 8.2 | ||
| FZ40.3 | 4500 | – | 139 | 7.5 | 7.1 | 8.5 | ||
| FZ40.4 | 5500 | – | 170 | 7.9 | 8.5 | 9.0 | ||
| FZ40.5 | 6500 | – | 200 | 8.3 | – | 9.4 | ||
| FZ40.6 | 7500 | – | 230 | 9.1 | – | 9.9 | ||
| FZ40.7 | 8500 | – | 262 | 9.8 | – | 10.3 | ||
| FZ40.8 | 10000 | – | 309 | 10.0 | – | 10.7 | ||
| Nominal Diameter | Connectable Flange | Float
Number |
Flow value（Water L/h; Air m3/h） | Pressure Loss (kPa) | ||||
| Water Calibration | Air Calibration | Water Calibration | Air Calibration | |||||
| Float material | Float material | |||||||
| 304 | PTFE | 304 | 304 | PTFE | 304 | |||
| DN50 | ≥DN50 | FZ50.1 | 6000 | 4000 | 185 | 8.1 | 6.8 | 8.6 |
| FZ50.2 | 7000 | 6000 | 220 | 8.8 | 8.8 | 9.1 | ||
| FZ50.3 | 8000 | 10000 | 250 | 9.5 | 13.7 | 9.6 | ||
| FZ50.4 | 10000 | 14000 | 310 | 11.0 | 18.5 | 10.4 | ||
| FZ50.5 | 13000 | – | 400 | 14.0 | – | 12.9 | ||
| FZ50.6 | 16000 | – | 495 | 17.0 | – | 15.5 | ||
| FZ50.7 | 20000 | – | 620 | 19.7 | – | 16.4 | ||
| FZ50.8 | 25000 | – | 770 | 20.0 | – | 18.6 | ||
| DN80 | ≥DN80 | FZ80.1 | 25000 | 16000 | 770 | 8.1 | 6.3 | 8.0 |
| FZ80.2 | 30000 | 25000 | 925 | 8.6 | 7.2 | 10.0 | ||
| FZ80.3 | 35000 | – | 1080 | 9.1 | – | 12.0 | ||
| FZ80.4 | 40000 | – | 1234 | 9.5 | – | 14.0 | ||
| DN100 | ≥DN100 | FZ100.1 | 60000 | 35000 | 1800 | 10.0 | 7.9 | 25.0 |
| FZ100.2 | 100000 | – | – | 15.0 | – | – | ||
You can request the necessary certificates, documentation, instructions and user guide for DDTOP MTF using the special form.
You can buy DDTOP MTF in UAE at a favourable price in «Texair FZCO» by leaving a request on the website, by phone +441225535040 or by email ceo@texair.eu. DDTOP MTF price are subject to change depending on exchange rates. We deliver instruments by transport companies in United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain and other Middle Eastern countries.
See also: Flow meters
