OEM ODM Gas Mass Flow Controller Anti Corrosion Glass Tube Gas
Rotameter
Product Description of lzb flowmeter water anticorrosion
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
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
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.
Specification of glass tube rotameter water
Outline and installation dimension
| 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 |
| Material of Process Fluid Touching Parts |
| 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 |
| Model and Technical Parameter |
| 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 / |
FAQ
Q. Are you manufacturer?
A. Yes, we are manufacturer.
Q. What is lead time?
A. 3-5days. 7-10 days for 100pcs
Q. How do I order?
A. You can order it from Alibaba directly or send us a inquiry. We
will reply you within 24 hours
Q. Do you have any certificates?
A. We have CE certificate.
Q. What materials do you have?
A. aluminium alloy and chrome plated brass are available. The
picture shown is chrome plated brass. If you need other material,
pls contact us.
Q. What is maximum inlet pressure?
A. 3000psi (about 206bar)
Q. How do I confirm inlet connnection for cylidner?
A. Pls check cylinder type and confirm it. Normally, it is CGA5/8
male for Chinese cylinder. Other cylidner adapter are also
available e.g CGA540, CGA870 etc.
Q. How many types for connecting cylinder?
A. Down way and side way. (you can choose it)
Q. What is product warranty?
A: The free warranty is one year from the day of Commissioning
qualified.If there is any fault for our products within the free
warranty period, we will repair it and change the fault assembly
for free.
