Overview

ABDT-LZB Series Variable-area Flow meter mainly applies to areas like chemistry, oil industry, light industry, medicine, chemical fertilizer industry, food industry, dye industry, environmental protection, and scientific research. They are used to measure the flow rate of unidirectional non-impulse fluid (liquid or gas).

Corrosion resistance flow meter are mostly applied in cases of corrosive liquid and gas, such as strong acid (except for hydrofluoric acid), strong alkali, oxidizer, strong oxidizing acid and organic solvent.

Characteristics

1) Small pressure loss

2) Reliable performance, easy and convenient to read

3) Simple structure, convenient to install and serviced

4) Low and reasonable price

Principles and structures

The most important measuring component of flowmeter is a vertical-installed tapered glass pipe with a floater that is free to move up and down. When fluid moves through the flowmeter from bottom to top, pressure difference will be generated between the fluid above the floater and the fluid below it, under which the float will ascend. When this ascending force, the buoyancy force and viscosity force equal the gravity of the float, the float will stop at this equilibrium position. Therefore, the flow rate through the flow meter is relevant to the height of the float and the cutting area of the flow meter. So the position of the float can be used to indicate the flow rate.

Model specifications and technique data

Ordinary type

Notes: 1). The above flow meter with (DN 2-10mm)is side to side , hose, or threaded connection, bottom substrate is with aciculiform flow control valve. DN≥15MM is flange, vertically installed, without valve.

Notes:

1) liquid flow of LZB Series variable-area flow meter is calibrated in the circumstance of 20°C water, gas flow is calibrated in the circumstance of 20°C, 101325Pa Air

2) According to the customer's needs, special flow meter can also be made. The biggest water flow of DN100 can be 120 m3/h, the biggest gas flow can be 3500 m3/h, special density correction calibration and pressure correction calibration based on specific operation can also be made.

Corrosion resistance type

Notes:

1). Corrosion resistance type with DNW10 mm can be custom made, generally without aciculiform control valve.

2). The Corrosion resistance flow meter with higher precision can be custom made.

Flow meter and parts' materials contacting measured medium

Ordinary type

Notes: All the material of diameter flow meter's tapered glass pipe is HBG (Same below)

Stainless steel type LZB-¨¨B or LZB-¨¨B0

Flange, Substrate, valve, floater, guide rod, base plate, housing or bolt are all stainless steel,

Model: LZB-¨ ¨B. DN≤10 mm, stainless over current material can be 316L Stainless,

Model:LZB-2 ~ 10B0, can be custom made.

Corrosion resistance type LZB-¨¨F or LZB-¨¨F/B

DN 2-10 adopts PTFE Substrate, DN15-100 adopts cast iron flange lining PTFE,

Model: LZB-¨¨F;

If DN15-100 adopts stainless flange lining PTFE, then it can be stainless corrosion resistance type.

Model LZB-¨¨F/B, needs to be custom made.

Configuration and size

Nominal diameter DN2,3,4,6,10

Nominal diameter DN15-100

Notes : When the products need to match other products, we can do special design to change the configuration and size to meet customer's requirement.

Installation dimension

Model Selection