Product Introduction：

LLQZ intelligent gas Roots flowmeter is a highly accurate metrological instrument to continuously or instantaneously measure the flow rate of gas in pipeline, which is mainly composed of measuring chamber body, a pair of Roots rotor, transmission components and registry unit. It is of advantages as high accuracy, large working pressure range, low pressure loss, wide measurable flow range, none influence by the density, pressure and flow rate variation of gas, unnecessary of straight length connecting inlet and outlet of flowmeter, good reliability, easy installation and maintenance, long duration etc.. The intelligent registry unit is able to indicate total volume, instantaneous flow rate and remote monitor with pulse or 4-20mA signal. Configuring temperature and pressure sensor, it is also able to automatically pursue and compensate temperature and pressure or correct compact factor.

Main technical parameters:

Nominal diameter (mm): DN15～100

Accuracy: ±1.0%, ±1.5%

Flow range (m³/h): 0.5～200

Medium temperature (^oC): -20～80

Environmental temperature (^oC): -30~50

Nominal pressure (Mpa): 0.1, 0.4, 0.6, 1.0, 1.6

Medium: gases except Oxygen

Function of registry: mechanical registry, locally displays total volumetric flow rate; electronic registry, locally displays instantaneous flow rate and total.

Output: pulse, 4~20mA, RS485

Explosion proof: EX dⅡBT4

Safety grade: IP65

Connection: flange GB/T9113.1-2000 or customized according to customers' option

Technical standard: JB/T7384-94 gas Roots flowmeter

Market service:

Gas metrology for oil and chemical industry, metallurgy, scientific research, pressure adjusting station of urban gas pipelines, large industrial users, and community gas users

Application:

Industrial inert gases such as natural gas, LPG, air, coal gas, propane, butane, nitrogen, except oxygen