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Rotameter
Rotameter
Rotameter measures fluid flow based on the throttling principle. It changes the flow area of the fluid to keep the differential pressure above and below the rotor constant, so it is also called a variable flow area constant differential pressure flow meter, also known as a float flow meter.
Product Details
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Product Details
Main Features
It has the characteristics of simple structure, intuitive, small pressure loss, and easy maintenance. The Rotameter is suitable for measuring small flows through pipes with a diameter of D<150mm, and can also measure the flow of corrosive media.
Main Specifications
- • Working Pressure:≤ 0.6MPa
- • Operating Temperature:0~60℃
- • Accuracy:±4%
- • Body Material: Acrylic
- • Fitting Material :ABS or SS
- • Float Material: SS
- • O-ring Material: Silicon rubber
- • The fixed screw of center distance F is M6×11.
- • Customized specifications are available
- • When the flow meter is equipped with external threads, the total length is A, When the flow meter is equipped with internal threads, the total length is B.
Installation Method
RotaMeter has a simple structure and is generally installed vertically on a panel or a vertical pipe section. It is suitable for measuring the flow of low-velocity and low-flow media, but cannot measure media with more impurities. The fluid medium passes through the rotor flow meter from bottom to top.
1.Panel mounted Rotameter:
The LZM series Panel Rotameter is generally installed on the control panel, with both the inlet and outlet located at the back. Therefore, before installation, the inlet and outlet connection ports and the instrument fixing screw holes need to be in an open state.
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1.1 Material:
|
Body |
Fitting |
Adjust Valve |
O-ring |
|
√ Acrylic
|
√ 1 .ABS 4. PA 2. PP 5. Brass（chrome plate） 3. PVC 6. SS |
√ 1.SS 1. Acrylic 2. PTFE |
√ 1.Silicon rubber 2.Fluororubber 3.EPDM |
Note:
Mark with √, the material of the Flow Meter is the General Configuration.
1.2 Technical Parameters:
|
Model |
Range |
Nm³/h(Gas) |
Screw Thread |
Accuracy |
Size(mm) |
||||||||
|
GPM(Liquid) (Gallon/Min) |
LPM(Liquid) (L/Min) |
A |
B |
C |
D |
E |
F |
G |
Hole size |
||||
|
LZM-15 |
0.05~0.5 0.1~1 0.2~2 0.3~3 0.5~5 |
0.2~2 0.5~4 1~7 1~11 2~18 10~100LPH 16~160LPH 25~250LPH |
0.1~1 0.2~2 0.5~3 0.6~6 1.2~12 1.6~16 2.5~25 1~10 |
(Male) 1/2"BSPT (Female) 1/4"BSPT |
±4% |
176 |
32 |
168 |
35 |
19 |
76 |
127 |
26 |
|
LZM-25 |
1~10 2~15 2~20 3~30 5~35 5~40 |
5~40 10~50 10~70 10~110 20~140 10~150 |
6~60m³/h 16~160m³m/h 25~250Nm³/h |
(Male) 1"BSPT |
234 |
45 |
226 |
46 |
27 |
100 |
160 |
38 |
|
|
LZM-50 |
5~45 10~50 10~60 20~80 25~100 30~150 |
10~170 50~190 20~220 90~300 100~350 100~500 |
|
(Male) 2"BSPT |
296 |
70 |
281 |
82.5 |
41 |
100 |
190 |
64 |
|
2.Pipeline Installation Rotameter:
The LZM-G Pipeline series Rotameter can be directly connected in a pipeline, with the inlet and outlet located at the upper and lower ends of the flow meter. The shape can be circular, square, or other polygonal forms (generally, the most commonly used is circular). The connection thread can be either external or internal, and the specifications and materials of the threads can be customized according to requirements.
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Internal Thread Appearance Diagram |
External Thread Appearance Diagram |
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2.1 Material:
|
Body |
Fitting |
Float |
O-ring |
|
√ 1. PC 2.PSU 3. AS |
√ 1 .ABS 4. Brass 2. PP 5. Brass（chrome plate） 3. PVC 6. SS |
√ 1.SS |
√ 1.Silicon rubber 2.Fluororubber 3.EPDM |
Note:
Mark with √, the material of the Flow Meter is the General Configuration.
2.2 Technical Parameters:
|
Model |
Range |
Nm³/h(Gas) |
Screw Thread |
Accuracy |
Size(mm) |
||||
|
GPM(Liquid) (Gallon/Min) |
LPM(Liquid) (L/Min) |
A |
B |
C |
D |
||||
|
LZM-15G |
0.05~0.5 0.1~1 0.15~1.5 0.2~2 0.25~2.5 0.3~3 0.5~5 |
0.18~1.8 0.4~4 0.5~5.5 1~7 1~9 1~11 1.8~18 |
0.8~8 1~10 1.2~12 1.6~16 2.5~25 6~60LPM |
(External) G1/2" 1/2"BSP (Internal) G1/2" 1/2"BSP |
±4% |
235 |
233 |
180 |
32 |
|
LZM-20G |
1~10 1.5~15 2~20 3~30 5~35 4~40 |
4~40 5~55 10~70 10~110 20~140 15~150 |
4~40 6~60 |
(External) G1/¼" 1//¼"BSP (Internal) G3/4" 3/4"BSP |
330 |
283 |
236 |
45 |
|
|
LZM-25G |
1~10 2~20 3~30 5~35 4~40 5~50 6~60 |
4~40 10~70 10~110 20~140 15~150 25~190 30~225 |
15~140 16~160 25~250 40~400 |
(External) G1/½" 1//½"BSP (Internal) G1" 1"BSP |
319 |
297 |
235 |
51 |
|
|
LZM-40G |
4~40 6~60 20~80 15~100
|
15~150 22~220 30~300 50~400 |
|
(Internal) G1/½" 1/½"BSP |
340 |
302 |
240 |
65 |
|
|
LZM-50G |
20~80 20~100 20~120 40~150 60~200 |
100~300 100~350 100~450 150~550 150~750 |
100~500 100~600 300~900 |
(External) G2" 2"BSP (Internal) G2" 2"BSP |
400 |
367 |
294 |
75 |
|
3. Rotameter Pictures:
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4.Rotameter Application：
Due to various excellent performance and reliability,the Rotameters are widely used in chemical, pharmaceutical, paper making, water treatment, RO water purify equipment etc.
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FAQS
Frequently Asked Questions (FAQ) About Rotameter
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