DISPENSER
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MOTOR & PUMP
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LZ Series Variable-area Flowmeter With Metallic Measuring Tube
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LZ Series Variable-area Flowmeter with metallic measuring tube has the characteristics of simple structure, reliable, wide application field, high precision, convenient for installation. Compared with the variable-area flowmeter with glass tube, this series has the characteristics of high-pressure resistant, high-temperature resistant, safe, ocular reading etc. It is suitable to measure the opaque or corrosive medium. The tube and the flange are made material of stainless steel(1Cr18Ni9Ti or 316L). The orifice, float of normal type are made of stainless steel. The orifice , float and the tube lining of anticorrosion type are made of PTFE(Teflon). |
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NOTE: Our company also produces DN4~DN100 whole series of Variable-area Flowmeter with Glass Tube. |
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LZ Series Flowmeter with Metallic Measuring Tube is of Variable-area Flowmeter . As the fluid flow upward in the tube, the float moves upward to a certain position where the lifting force and the gravitational force are balanced, at the moment, the circulation area between the float and the orifice(or the conical tube) is kept fixed. The circulation area is proportional to the height of the float, it means the height of the float represent the volumetric flowrate. When the float moves up and down , it transmits its positional to the indicator outside in form of magnetic-coupling, so make the needle of the indicator follows the movement of the float, and by using the cam board to show the value of flowrate linearly on the indicator. |
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| Technical Parameter | |
Instrument version |
LZZH LZDH Series |
| Flow range | Water 2.5~100000L/h Air 0.07~800m3/h (See table below) |
| Range ration | DN≤100mm: 10:1DN＞100mm: 5:1 |
| Accuracy | Standard type:±2.5%FS, Special order: can be up to ±1.5 %FS |
| Maximum working Pressure | DN15，DN25，DN40，DN50：4.0MPa DN80,DN100,DN150:1.6MPa |
| Maximum working Pressure | Normal type H1:-40℃~100℃， High temperature type H2:-80℃~250℃ |
| Environment temperature | -25℃~+55℃ |
| Connection form | Flange connection(Flange standard: Refer to GB9115-88,JB82-59), can be made in accordance with the user's requirement. |
| Explosion-proof class | ExibⅡCT4 together with the safety battier LB987S Explosion-proof number of certificate GYB00563 |
| Protection grade | IP65 |
| Viscidity | DN15：≤5mPa·s, DN25~DN150: ≤250mPa·s |
| Products executive standard | JB/T6844-1993 |
Specification :
Diameter (mm) |
Working Code |
Flow Range |
Pressure loss kPa |
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Water L/h |
Air m3/h |
Water |
Air
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| Normal Type | Corrosion-proof type | Normal type Corrosion-proof type | Normal Type | Corrosion-proof type | |||
15 |
1 A |
2.5-25
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--
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0.07-0.7 |
6.5 |
-- |
7.1 |
1 B |
4.0-40
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2.5-25
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0.11-1.1 |
6.5 |
5.5 |
7.2 |
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1 C |
6.3-63
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4.0-40
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0.18-1.8 |
6.6 |
5.5 |
7.3 |
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1 D |
10-100
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6.3-63
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0.28-2.8 |
6.6 |
5.6 |
7.5 |
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1 E |
16-160
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10-100
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0.48-4.8 |
6.8 |
5.6 |
8.0 |
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1 F |
25-250
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16-160
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0.7-7.0 |
7.0 |
5.8 |
10.8 |
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1 G |
40-400
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25-250
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1.0-10 |
8.6 |
6.1 |
10.0 |
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1 H |
63-630
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40-400
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1.6-16.0 |
11.1 |
7.3 |
14.0 |
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25 |
2 A |
100-1000
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63-630
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3-30 |
7.0 |
5.9 |
7.7 |
2 B |
160-1600
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100-1000
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4.5-45 |
8.0 |
6.0 |
8.8 |
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2 C |
250-2500
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160-1600
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7-70 |
10.8 |
6.8 |
12.0 |
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2 D |
400-4000
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250-2500
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11-110 |
15.8 |
9.2 |
19.0 |
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40 |
4 A |
500-5000
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400-4000
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12-120 |
10.8 |
8.6 |
9.8 |
4 B |
600-6000
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500-5000
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16-160 |
12.6 |
10.4 |
16.5 |
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50 |
5 A |
630-6300
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600-6000
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18-180 |
8.1 |
6.8 |
8.6 |
5 B |
1000-10000
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630-6300
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25-250 |
11.0 |
9.4 |
10.4 |
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5 C |
1600-16000
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1000-10000
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40-400 |
17.0 |
14.5 |
15.5 |
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80 |
8 A |
2500-25000
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1600-16000
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60-600 |
8.1 |
6.9 |
12.9 |
8 B |
4000-40000
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2500-25000
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80-800 |
9.5 |
8.0 |
18.5 |
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100 |
10 A |
6300-63000
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4000-40000
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-- |
15.0 |
8.5 |
19.2 |
150 |
15 A |
20000-100000
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-- |
-- |
19.2 |
-- |
20.3 |
Water 20C , Air 0.1013Mpa ,20C