LZB,LZBJ series glass rotor flowmeterDetailed product description：

Product Introduction

Glass rotor flow meters are mainly used in various departments such as chemical, petroleum, light industry, medicine, fertilizer, synthetic fiber, food, dye, environmental protection, and scientific research to measure the flow rate of single-phase non pulsating (liquid or gas) fluids.

Corrosion resistant flow meters are mainly used for detecting the flow rate of corrosive liquids and gas media, such as strong acids (except hydrofluoric acid), strong bases, oxidants, strong oxidizing acids, organic solvents, and other corrosive gas or liquid media.

The LZB type measuring cone uses a smooth conical glass tube, while the LZJ type uses a reinforced conical glass tube.

Principle and Structure

The main measuring components of the flowmeter are a vertically installed lower small upper large conical glass tube and a float that can move up and down inside. When the fluid flows 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 the buoyancy of the float, the float is in an equilibrium position. Therefore, there is a certain proportional relationship between the fluid flow rate flowing through the flowmeter and the rising height of the float, that is, the flow area of the flowmeter. The position height of the float can be used as a measure of flow rate.

LZBJ series glass rotor flowmeter

Product Technical Specifications

LZB-2W	LZB-3W	model			LZB-4	LZB-6	LZB-10	LZB-15
φ2	φ3	Nominal diameter mm			φ4	φ6	φ10	φ15
≤1	≤1	Work pressure Mpa			≤1	≤1	≤1	≤0.6
±4	±4	Basic error limit%			±4	±2.5	±2.5	±1.5
1:10	1:10	Range degree			1:10	1:10	1:10	1:10
0.4~4	2.5~25	Liquid mL/min	measure quantity Fan enclose	liquid L/h	1~10	2.5~25	6~60	16~160
0.6~6	4~40				1.6~16	4~40	10~100	25~250
1~10	6~60
1.6~16	10~100				2.5~25	6~ 60	16~160	40~400
6~60	40~400	gas mL/min		gas L/h	16~160	40~400	100~1000	250~2500
10~100	60~600				25~250	60~600	160~1600	400~4000
16~160	100~1000
25~250	160~1600				40~400	100~1000	250~2500	600~6000

model		LZB-25	LZB-40	LZB-50	LZB-80	LZB-100
Nominal diameter mm		Φ25	Φ40	Φ50	Φ80	Φ100
Work pressure Mpa		≤1.5	≤0.6	≤0.6	≤0.4	≤0.4
Basic error limit%		±1.5	±1.5	±1.5	±1.5	±1.5
Range degree		1:10	1:10	1:10	1:10,1:5	1:5
measure quantity Fan enclose	liquid M3/H	0.04~0.4	~	zero point four four	1~ 10	5~ 25
		0.06~0.6	0.16~1.6	0.6~6	1.6~16	8~40
		0.1~1	0.25~2.5	1-10 (special)	7-30 (special)	12-60 (special)
	gas M3/H	1~10	4~40	10~100	50~500	120~600
		1.6~16	6~60	16~160	80~400	200~1000
		2.5~25	~	~	~	~

The liquid flow rate of the glass rotor flowmeter is calibrated with a scale of 20 ℃ clean water, and the gas flow rate is calibrated with a scale of 20 ℃ \ 101325Pa air
According to user needs, special flow meters can be made, with a maximum water flow rate of 120m3/h and a maximum air flow rate of 3500m3/h for DN100 diameter. Special calibration and correction can also be carried out

Corrosion resistant type

model		LZB-15F ,LZJ-15F	LZB-25F,LZJ-25F	LZB-40F,LZJ40F	LZB-50F,LZJ-50F	LZB-80F	LZB-100F
Nominal diameter mm		Φ15	Φ25	Φ40	Φ50	Φ80	Φ100
Work pressure Mpa		≤0.6	≤0.6	≤0.6	≤0.6	≤0.4	≤0.4
Basic error limit%		±4	±2.5	±2.5	±2.5	±2.5	±2.5
Range degree		1:10	1:10	1:10	1:10	1:10,1:5	1:5
measure quantity Fan enclose	liquid m3/h	0.016~0.16	0.04~0.4	~	~	~	~
		0.025~0.25	0.06~0.6	0.16~1.6	0.4~4	1~10	5~25
		0.04~0.4	0.1~1	0.25~2.5	0.6~6	1.6~16	8~40
	gas m3/h	0.25 ~2.5	1~10	~	~	~	~
		0.4~4	1.6~16	4~40	10~100	50~250	120~1600
		0.6~6	2.5~25	6~60	16~160	80~400	200~1000

Note: Corrosion resistant flow meters with a nominal diameter of ≤ 10mm need to be customized. According to user requirements, a higher level of precision corrosion resistant flow meter can be produced

The parts of the corrosion-resistant flowmeter that come into contact with the medium, the glass tube is made of high borosilicate glass, and the rest are made of polytetrafluoroethylene PTFE (inner lining) and F46 diaphragm
Note: For ordinary corrosion-resistant types with a nominal diameter of ≤ 10MM, all stainless steel materials can be used If measuring highly corrosive media, the base and sealing materials should be made of polytetrafluoroethylene, and the support plate should be made of stainless steel. Generally, needle valves are not included and customization is required