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The LWQ series gas turbine flowmeter is a velocity flow meter based on the principle of conservation of momentum. The fluid impacts the turbine blade to rotate the turbine, and the rotation speed of the turbine changes with the change of flow rate, and the flow value is finally calculated from the rotation number of the turbine. The LWQ series gas turbine flowmeter, developed by Xun 'er Company, is an upgraded model featuring a streamlined core mechanism. It automatically and accurately measures temperature, pressure, and flow rate of the measured medium while providing automatic compensation for temperature, pressure, and compression factors. The meter directly displays the medium's volumetric flow rate under standard conditions (Pb=101.325kPa, Tb=293.15K). With its simple structure, lightweight design, high accuracy, and excellent repeatability, this product is an ideal solution for gas metering in urban gas supply, petroleum, chemical, power, and metallurgical industries.
The product line covers a wide range of diameters from DN25 to DN400, with comprehensive models available
High accuracy, up to 1.0 grade, repeatability up to 0.15%R
The instrument features intrinsically safe and explosion-proof capabilities, with an IP65 protection rating
It has real-time data storage function, which can prevent data loss when the instrument is suddenly cut off. In the state of power failure, the internal data can be permanently saved
The detachable fully enclosed mechanism (Patent No.: ZL201420591807.2) features a robust structure with strong impurity resistance, high precision, low pressure loss, and excellent interchangeability
The imported precision bearing for instrument is special, with good wear resistance and high stability, and improves the lower limit sensitivity of the instrument and reduces the starting flow rate
Featuring pulse signals and 4-20mA output, with RS485 (MODBUS) interface The RTU protocol provides communication outputs and IC card signal outputs, which can be used with IC card prepaid systems for convenient trade settlement
With an integrated oil injection pump, the bearing is guaranteed to operate reliably for a long time.
Basic Parameters of Gas Turbine Flow Meter
| Operative norm | GB/T18940-2003"Measurement of Gas Flow in Closed Pipelines-Turbine Flow Meters" | ||
| Vertification reg-ulation | JG 1037-2008 "Verification Regulations for Turbine Flow Meters" | ||
| Applicable medium | Non-corrosive,medium and low flow rate gas media such as natural gas,propane,butane,carbon dioxide,nitrogen,etc | ||
| Instrument housing material and surface treatment process | LWQ-A1 Series | ZL111 cast aluminum alloy with oxide coating process | |
| LWQ-Y1/N1 Series | DN25-DN300:304 stainless steel with precision-turned finish | ||
| DN350-DN400:45#carbon steel with spray-painted finish | |||
| LWQ-Y2/N2 Series | DN25-DN300:304 stainless steel with precision-turned finish | ||
| DN350-DN400:45#carbon steel with spray-painted finish | |||
| Instrument impeller material | 6061 aluminum alloy | ||
| Process connection mode | LWQ-A1 Series | Flange joint | DN25～DN200 |
| LWQ-Y1/N1 Series | Flange joint | DN25～DN400 | |
| LWQ-Y2/N2 Series | Flange joint | DN25～DN400 | |
| Applicable medium tempe-rature | -25℃~+55℃ | ||
| Atmospheric pre-ssure | 86kPa-106kPa | ||
| Nominal press-ure | PN16 to PN63,Class 150,see Table 4-2 for details | ||
| Install ambient temperat-ure | -20℃~+60℃ | ||
| Relative humidity of the installation environment | 5%～95% | ||
PN marking flange grade range: 16,25,40,63
Class tag specifies the flange grade range: 150
Pressure Rating Table of Gas Turbine Flowmete
| Inside nominal di-ameter | Product line | ||||
| LWQ-A1 | LWQ-Y1 | LWQ-Y2 | |||
| PN | PN | Class | PN | Class | |
| DN25 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN40 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN50 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN65 | 一 | 16 | 16 | ||
| DN80 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN100 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN150 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN200 | 16 | 16～25 | 150 | 16～63 | 150 |
| DN250 | 一 | 16～25 | 150 | 16～63 | 150 |
| DN300 | 一 | 16～25 | 150 | 16～40 | 150 |
| DN350 | 一 | 16 | 150 | 16 | 150 |
| DN400 | 一 | 16 | 150 | 16 | 150 |
We're always here, ready to provide precise measurement solutions for your business. Kinger Instruments looks forward to establishing a long-term partnership with you, creating value and a shared future.
No. 6, Jinsha Road, Baishahe Street, Pingdu City, Qingdao
