Product Description of Glass Rotameter
LZB/LZJ series glass rotameter are widely used in chemical
industry, petroleum, light industry, medicine, environmental
protection, food, measurement, testing and scientific research
institutes. They are used to measure the flow rate of single-phase
non-pulse fluid (liquid or gas). LZB/( )F/LZJ-( )F series
anti-corrosive glass rotameter have a good corrosion resistance,
and can be used to measure acid (except hydrofluoric acid), alkali,
oxidizer and other corrosive gases or liquid. They are suitable for
chemical industry, pharmacy, papermaking, sewage disposal etc.
Working Principle & Structure of Glass Rotameter
The flowmeter is mainly composed of a piece of taper glass pipe
with bigger bottom and smaller top and a floater moving up and down
along with the fluid flow(Fig.3).When the fluid flows across the
taper pipe from bottom to top, the floater rises under the lift
force "S" on the floater due to the fluid dynamic energy and the
fluid buoyancy force "A".When the sum of the lift force "S" and the
buoyancy force "A" is equal to the floater weight "G", the floater
is in equilibrium and stable at a certain height. The
scale on the taper pipe indicates the fluid flow.
The taper pipe of LZB/LZB-( )F flowmeter is a pipe with smooth
inner wall of Glass Rotameter
For the flowmeter with the bore larger than DNl5, the floater moves
up and down along the guide rod and remains stable ;There are three
guiding edges on the inner wall of the taper pipe of LZJ/LZJ-()F
flowmeter to keep the floater stable (See Fig.5).The flowmeter with
the bore smaller than DNl0 adopts hose connection, is equipped with
needle flow control valve;The flowmeter with the bore larger than
DN15 adopts flanged connection.
Outline and installation dimension of Glass Rotameter
| DN(mm) | A | B | C | D | E | Connection Type |
| 4 | 178 | 204 | 230 | Φ10 | 38.5×33 | Hose |
| 6 | 178 | 204 | 230 | Φ10 | 42×33 | Hose |
| 10 | 178 | 208 | 244 | Φ12 | 45×40 | Hose |
| 15 | Φ95 | Φ65 | 470 | Φ15 | 4-Φ14 | Flange |
| 25 | Φ115 | Φ85 | 470 | Φ25 | 4-Φ14 | Flange |
| 40 | Φ145 | Φ110 | 570 | Φ40 | 4-Φ18 | Flange |
| 50 | Φ160 | Φ125 | 570 | Φ50 | 4-Φ18 | Flange |
| 80 | Φ185 | Φ150 | 660 | Φ80 | 4-Φ18 | Flange |
| 100 | Φ205 | Φ170 | 660 | Φ100 | 4-Φ18 | Flange |
| Model and Technical Parameter of Glass Rotameter |
| DN(mm) | Model | Measuring Range | Length of taper pipe(mm) | Accuracy Degree | Allowed Measuring Fluid State |
| Water,20℃ | Air,20℃,101325Pa | LZB/LZJ | LZB-()F LZJ-()F | Temp.(℃) | Pressure (MPa) |
| 4 | LZB-4 LZB-4F | (1~10)L/h (1.6~16)L/h (2.5~25)L/h | (16~160)L/h (25~250)L/h (40~400)L/h | 160 | 2.5 | 4 | -20~+120 | ≤1 |
| 6 | LZB-6 LZJ-6 LZJ-6F | (2.5~25)L/h (4~40)L/h (6~60)L/h | (40~400)L/h (60~600)L/h (100~1000)L/h | 2.5 |
| 10 | LZB-10 LZJ-10 LZJ-10F | (6~60)L/h (10~100)L/h (16~160)L/h | (100~1000)L/h (160~1600)L/h (250~2500)L/h |
| 15 | LZB-15 LZJ-15F | (16~160)L/h (25~250)L/h (40~400)L/h | (0.25~2.5)m 3 /h (0.4~4)m 3 /h (0.6~6)m 3 /h | 350 | ≤0.6 |
| 25 | LZB-25 LZJ-25F | (40~400)L/h (60~600)L/h (100~1000)L/h | (1~10)m 3 /h (1.6~16)m 3 /h (2.5~25)m 3 /h |
| 40 | LZB-40 LZJ-40F | (0.16~1.6)m 3 /h (0.25~2.5)m 3 /h | (4~40)m 3 /h (6~60)m 3 /h | 430 |
| 50 | LZB-50 LZJ-50F | (0.4~4)m 3 /h (0.6~6)m 3 /h | (10~100)m 3 /h (16~160)m 3 /h | 450 |
| 80 | LZB-80 LZB-80F | (1~10)m 3 /h (1.6~16)m 3 /h | (50~250)m 3 /h (80~400)m 3 /h | 500 | ≤0.4 |
| 100 | LZB-100 LZB-100F | (5~25)m 3 /h (8~40)m 3 /h | (120~600)m 3 /h (200~1000)m 3 /h |
| Material of Process Fluid Touching Parts of Glass Rotameter |
| Parts/Material/Model | LZB-4,6,10 LZJ-6,10 | LZB-4F LZJ-6F,10F | LZB-15,25,4 0 | LZJ-15,25,40,50 (F) | LZB-50,80,100 | LZB-80,100(F) |
| Float | SS304 | Agate | SS304 | Packing with fluoroplastic | SS304 | Packing with fluoroplastic |
| Base | Brass | SS304 | Cast iron lining PP | Cast iron lining PP | Cast iron lining with paint | Cast iron lining PP |
| Stop | PP | Fluoroplastic | PP | Fluoroplastic | Cast iron | Fluoroplastic |
| Seals and Shim | Nitrile rubber | Fluororubber | Nitrile rubber | Fluororubber | Nitrile rubber | Fluororubber |
| Guide Rod | | | SS304 | | SS304 | Packing with fluoroplastic |
FAQ
1. who are we?
We are based in Guangdong, China, start from 2011,sell to Southeast
Asia(20.00%),Africa(20.00%),Eastern Asia(10.00%),Mid
East(10.00%),Domestic Market(5.00%),South Asia(5.00%),Northern
Europe(5.00%),Central America(5.00%),Western Europe(5.00%),South
America(5.00%),Eastern Europe(5.00%),North America(5.00%). There
are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
pressure regulator,Tube fittings,solenoid valve,Needle valve,check
valve
4. why should you buy from us not from other suppliers?
We have a couple of years with professional engineers and dedicated
technicians.can provide security products for you
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW；
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,Western Union;
Language Spoken:English,Chinese
