Glass rotor flowmeter

The main measuring components of Shanghai Meixu Measurement and Control MX-LL-116-14 glass rotor flowmeter are a vertically installed lower small and upper large conical glass tube and a float that can move up and down inside. When the fluid passes through the conical glass tube from bottom to top, a pressure difference is generated between the upper and lower parts of the float, and the float rises under this pressure difference. When the upward force, buoyancy, and viscous lift acting on the float are equal to its gravity, the float is in an equilibrium position. Therefore, there is a certain proportional relationship between the fluid flow rate flowing through the glass rotor flowmeter and the rising height of the float, that is, the flow area of the glass rotor flowmeter. The position height of the float can be used as a measure of flow rate. The object of measurement. Measure the type of medium, pressure level, and chemical properties. For corrosive media such as liquid and gas media, corrosion-resistant flow meters should be selected.
Petrochemical industry, steel metallurgy
Water supply and drainage, water conservancy irrigation
☛ Water treatment and sewage treatment stations (environmental sewage control)
Fluid such as alcohol, oil, sewage, etc
Distillation and sales engineering system, condensate measurement
Pharmaceutical equipment, food machinery, environmental protection industry
Energy metering: primary energy (coal, crude oil, coalbed methane, petroleum gas, and natural gas), secondary energy (electricity, liquefied petroleum gas, steam), etcSimple principle, easy installation, and extremely easy maintenance
☛ The flow rate can be directly observed and seen on site.
☛ Suitable for various working conditions and resistant to acid and alkali corrosion
Less overcurrent components and less pressure loss
Can measure non-conductive media such as pure water, oil, etc
Strong anti-interference and impurity resistance, with a large range ratio.

Sensor diameter （mm)	Liquid (verification medium: 20 ° water)		Air (20 ° C, pressure 101325PA)
	standard form	Extended type	standard form	Extended type
15	16-160L/H 25-250L/H	40-400L/H	0.25-2.5m³/H 0.4-4m³/H	0.6-6m³/H
25	40-400L/H 60-600L/H	100-1000L/H	1-10m³/H 1.6-16m³/H	2.5-25m³/H
40	160-1600L/H	250-2500L/H	4-40m³/H	6-60m³/H
50	0.4-4m³/H	0.6-6m³/H	10-100m³/H	16-160m³/H
80	1-10m³/H	1.6-16m³/H	50-250m³/H	80-400m³/H
100	5-25m³/H	8-40m³/H	120-600m³/H	200-1000m³/H

Model Description:	MX-LL-116-14
Nominal longitude:	DN15～DN25～DN40～DN50～DN80～DN100（管道式垂直安装方式）。
Traffic selection:	Please refer to the fourth item above for flow selection. Before selecting the caliber, please make sure to determine the flow range first
Flow rate range:	0-20m/s (optional);
Material of parts:	Stop (fluoroplastic); Sealing rings and gaskets (high-temperature resistant rubber or fluororubber);
Float material:	304 stainless steel (30A); Outsourced fluoroplastic/acid alkali resistant (30E)
Base material:	Carbon steel cast iron (F1); 304 stainless steel (F2); Carbon steel lined with PTFE (F4)
Special requirements:	Customized according to specific requirements

model	Measure the diameter	Float material	Installation base material	Other requirements	Other requirements
MX-LL-116-14	DN50	304 stainless steel	painted carbon steel	none	none
Example of ordering:	MX-LL-116-14-DN50-30A-F1

The scale of the glass rotor flowmeter is calibrated by the manufacturer using water and dry air, which are close to ideal fluids, as the medium under local conditions. But in the use of flow meters, there are two situations where their scale values cannot be directly used: one is when the measuring medium is not water and air, and the other is when the measuring medium is water and air, but its state (temperature, pressure) is different from the scale state. In this way, when using a flow meter, there is a problem of needing to correct the scale values in order to obtain accurate measurement results. Therefore, solving the calibration correction of glass rotor flow meters is the key to using this type of instrument effectively.