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Equipped with remote transmission metal tube float flowmeter
The metal tube float flowmeter can be made into a pure mechanical type with pointer display, suitable for explosion-proof sites and direct reading of
Product details
The TDZC-LZ series metal tube float flowmeter has a simple structure, reliable operation, high accuracy, and a wide range of applications. Compared with glass rotor flow meters, it can withstand higher pressures. The TDZC-LZ series flowmeter has various types such as local indication, electric remote transmission, limit switch alarm, corrosion resistance, jacket type, damping type, and explosion-proof. Widely used in the measurement and automatic control of liquid and gas flow in departments such as national defense, chemical industry, petroleum, metallurgy, power, environmental protection, medicine, and light industry.
The flow meter detection parts are all made of 1Cr18Ni9Ti stainless steel material, and in special occasions, they can also be composed of corrosion-resistant materials such as Cr18Ni12Mo2Ti or F46. The height of the flowmeter is 250 mm, except for special specifications.
The connecting flange adopts GB/T9119.8-10 standard, and can also be customized according to the user's special requirements.
2、 Principle structure
When the fluid flows from bottom to top through an upright measuring tube, the float rises under the action of pressure difference, and the height of the float rise represents the size of the flow rate. And it is coupled and transmitted to the indicator through the magnetic steel in the float and the magnetic steel in the indicator, driving the pointer in the indicator to rotate.
3、 Technical requirements
1. Measurement range: water (2.5-6000) L/h;
Air (0.07-2000) m3/H (at 0.101025 MPa, 20 ℃).
2. Accuracy levels: 1.5 and 2.5.
3. Range ratio: 10:1.
4. Work pressure: DN15-50, 4 MPa; DN80～100，1.6MPa。
5. Medium temperature: -80 ℃~200 ℃ (F46 flowmeter with lining 0 ℃~80 ℃).
6. Viscosity of liquid medium: DN15 ＜ 5mPa · s; DN25～100＜5mPa·s。
7. Connection methods: flange connection, threaded connection, etc;
The flange adopts the GB/T9119.8-10 standard.
8. Total length: DN15-100 250mm.
9. Material of measuring tube: ordinary type 1Cr18Ni9Ti, corrosion-resistant type Cr18Ni12Mo2Ti, 316L, 316 lined F46, etc.
If the user has special requirements, special orders can be placed.
4、 Electrical performance
1. Output signal: two-wire system (4-20) mA, three wire system (0-10) mA.
2. Linearity: 1%;
3. Power supply: DC 24 (1 ±) V.
4. Power consumption: 25 mW.
5. Environmental temperature: -25 ℃ to 55 ℃.
6. Temperature effect: 0.5%/10 ℃.
7. Load resistance: DC (0-10) mA (0-1) k Ω;
（4～20）mA （0～600）Ω。
8. Wiring cable: RVVP 3 × 28/0.15.
9. Explosion proof grade: Ex ib Ⅱ CT5 (certificate number GYB03582U).
10. Safety barrier model: LB906.
11. Electric remote transmission transmitter: K5WI-I type or ESK-I (two-wire system).;
five、Limit switch alarm device
Limit switch alarm device can be installed for TDZC-LZ indicator
1. Technical parameters:
a) Power supply: AC 220 (1 ± 10%) V;
b) Power consumption: ≤ 3 W;
c) Working temperature: -25 ℃ to 60 ℃.
2. Selection
Table 1
|
管道口径 |
structural form（Flow direction of medium） |
Liquid receiving material |
Attachment Structure |
|||
|
A |
B |
C |
D |
|||
|
DN15 |
Y10 |
Down in, up out |
RR0 |
0Cr18Ni12Mo2Ti |
F |
corrosion-resistant type |
|
DN25 |
Y20 |
Horizontal entry and exit |
RR1 |
1Cr18Ni19Ti |
T |
Jacket type |
|
DN50 |
Y30 |
Same side entry and exit |
RP |
PTFE (polytetrafluoroethylene) |
Z |
Damping type |
|
DN80 |
Y40 |
Entering and exiting from the opposite side |
Ti |
Titamium (titanium alloy) |
G |
high-temperature type |
|
DN100 |
Y50 |
bottom inlet and side outlet |
RL |
316L |
Y |
High voltage type |
|
DN125 |
|
|
|
|
B |
Explosion-proof type |
2. Flow range
The flow range is shown in Table 2
Table 2
|
Corrosion resistant diameter DN（mm） |
Ordinary diameter DN（mm） |
Flow range |
*High pressure loss |
||
|
Air m3/h 20℃ 0.101325 MPa |
Water L/h 20℃ |
Air (kPa) |
Water (kPa) |
||
|
15 |
15 |
0.07～0.7 |
2.5～25 |
7.1 |
6.5 |
|
0.11～1.1 |
4.0～40 |
7.2 |
6.5 |
||
|
0.18～1.8 |
6.0～60 |
7.3 |
6.6 |
||
|
0.28～2.8 |
10～100 |
7.5 |
6.6 |
||
|
0.40～4.0 |
16～160 |
8.0 |
6.8 |
||
|
0.70～7.0 |
25～250 |
10.8 |
7.2 |
||
|
1.00～10 |
40～400 |
10 |
8.6 |
||
|
25 |
1.60～16 |
60～600 |
14 |
11.1 |
|
|
25 |
3.00～30 |
100～1000 |
7.7 |
7 |
|
|
4.50～45 |
160～1600 |
8.8 |
8 |
||
|
7.00～70 |
250～2500 |
12 |
10.8 |
||
|
50 |
11～110 |
400～4000 |
19 |
15.8 |
|
|
50 |
18～180 |
600～6000 |
8.6 |
8.1 |
|
|
25～250 |
1000～10000 |
10.4 |
11 |
||
|
80 |
40～400 |
1600～16000 |
15.6 |
17 |
|
|
80 |
|
2500～25000 |
|
8.1 |
|
|
100 |
|
4000～40000 |
|
9.5 |
|
|
100 |
|
6000～60000 |
|
10 |
|
1. TDZC-LZ
Figure 4 Installation dimensions
2. GB/T911.8～10
Table 3
|
Diameter (DN) |
Work pressure (MPa) |
D |
D1 |
D2 |
n×d |
|
15 |
4.0 |
95 |
65 |
46 |
4×14 |
|
25 |
115 |
85 |
65 |
||
|
50 |
165 |
125 |
99 |
||
|
80 |
1.6 |
200 |
160 |
132 |
8×18 |
|
100 |
220 |
180 |
156 |
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