Basic Info.
Main Application
Water, Fuel Oil
Application
Energy Metering
Measuring Principle
Thermodynamic
Measurement Object
Open Channel
Product Description
General
The LKQ series thermal gas mass flowmeter provide a reliable solution for gas mass flow detection. Low flow sensitivity, fast response and wide range ratio make this model of meter the first choice for many important gas applications. The Steel - Trak sensor automatically corrects the effects of temperature and pressure, making the mass flow output more stable and reliable. Its advantages in gas measurement are particularly pronounced, especially in the case of low pressures and complex gas compositions. Compared with other flowmeters, the thermal type gas mass flowmeter has the advantages of small pressure loss, wide range ratio and high sensitivity of small range segments, which is more conducive to energy saving and procurement costs.
Direct measurement of mass flow of gas without pressure and temperature compensation;
High repeatability, high reliability, high stability and high precision;
Range range width: up to 1000:1 or more;
Explosion-proof, anti-corrosion design, suitable for harsh conditions, corrosive occasions;
High sensitivity, especially suitable for flow measurement of large diameter and low flow rate;
Eextremely small pressure loss and almost negligible;
Diverse structure, flexible installation, convenient loading and unloading, easy to use, basically maintenance;
LCD display, clear and intuitive, showing both instantaneous flow and cumulative flow, so that you can see more clearly and more directly.
Technical parameters
| Measuring range | 0.4~60m/s |
| Accuracy | ±1.0%FS,±1.5%FS |
| Repeatability | ±0.25%FS |
| Response time | <100ms |
| Sensitivity | <0.05m/s |
| Fluid temperature | -20~+120ºC,-20~+250ºC |
| Ambient temperature | -20~+55ºC |
| Working pressure | 0~2.5MPa . 0~6.0MPa |
| Explosion-proof grade | ExdIIBT6 or ExiaIICT4 |
| Protection grade | IP65 |
| Power supply | 24VDC,Current≥350mA |
| Output signal | 4-20mA,RS485,HART |
| Body material | 304 or 316 stainless steel L |
Reference flow range
| Pipe diameter(DN) | Flow range
(Nm3/h) | Pipe diameter(DN) | Flow range
(Nm3/h) | Pipe diameter(DN) | Flow range
(Nm3/h) |
| 10 | 0.12~17 | 150 | 30~3800 | 900 | 1000~140000 |
| 15 | 0.3~40 | 200 | 50~6800 | 1000 | 1200~170000 |
| 20 | 0.5~70 | 250 | 100~10000 | 1200 | 2000~240000 |
| 25 | 0.7~100 | 300 | 150~15000 | 1400 | 3000~330000 |
| 32 | 1.2~170 | 350 | 200~20000 | 1600 | 3500~430000 |
| 40 | 2~270 | 400 | 250~27000 | 1800 | 4000~550000 |
| 50 | 3~420 | 450 | 300~35000 | 2000 | 5000~680000 |
| 65 | 5~720 | 500 | 350~42000 | 2200 | 6000~820000 |
| 80 | 8~1100 | 600 | 500~61000 | 2400 | 7000~976000 |
| 100 | 12~1700 | 700 | 600~83000 | 2600 | 8000~114600 |
| 125 | 20~2600 | 800 | 800~100000 | 2800 | 11000~1526000 |
Product Classification
| LKQ-A1 plug-in type | LKQ-A2 pipe mounting type | LKQ-A2F3 anti-corrosion type |
| | | |
Applicable to gas mass flow measurement with pipe diameter greater than DN80. The meter has features such as high precision, good repeatability, high reliability, wide range ratio, fast response, simple and convenient installation, basic free of maintenance, almost no pressure loss, pipe diameter has a very small influence on the price. It has become more and more widely used in the field of gas measurement. Especially after the design with the ball valve installation, it breaks the history that the gas must be shut down when installing the flowmeter on site, which greatly facilitates the use.
| Applicable to gas mass flow measurement with pipe diameter less than DN65. It uses a more beautiful design, with double circlip, ten-layer V-type PTFE gasket, and flange with concave and convex surface, so that the meter will not leak under high pressure, which is more convenient for use, disassembly and maintenance. | He anti-corrosion type thermal gas mass flowmeter has all the features of the conventional thermal mass flowmeter and the sheath of the sensor is made of special metal material tantalum with good acid corrosion resistance, and in the concentration of 28~29% hydrochloric acid ( at this concentration, hydrochloric acid is the most corrosive to metals.) the wall thickness will be corroded by 4u every year. If the wall thickness of the sheath is to be completely corroded, it takes more than ten years,moreover, the corrosive properties of chlorine, phosgene and other gases actually used are not as corrosive as the concentration of 28, 29% hydrochloric acid solution, and the PBF probe and the pipe to be tested are reliably sealed. |
Instrument selection
| LKQ | | | | | | | | Code description |
| Installation form | | | | A1 | | | | Plug-in type |
| | | | A2 | | | | Pipe mounting type |
| Power supply | | | | B1 | | | | 220VAC |
| | | | B2 | | | | 24VDC |
| Output signal | | | | C1 | | | | 4~20mA |
| | | | C2 | | | | RS485 |
| | | | C3 | | | | HART |
| Whether the meter has a display | | | | D1 | | | | No display at the meter head |
| | | | D2 | | | | Header instantaneous flow display |
| | | | D3 | | | | Header instantaneous and cumulative flow display |
| Whether it has intelligent flow totalizer | | | | E1 | | | | No flow totalizer |
| | | | E2 | | | | With intelligent flow totalizer |
| Special requirements | | | | F1 | | | | No special requirements |
| | | | F2 | | | | Flameproof |
| | | | F3 | | | | Corrosion resistant (sensor is tantalum material) |
| | | | F4 | | | | High temperature type (150-250ºC) |
| Flowmeter and pipe seal connection | | | | L1 | | | | Continuous flow assembly and disassembly device (ball valve) <0.8Mpa |
| | | | L2 | | | | Continuous flow assembly and disassembly device (ball valve) + high pressure seal assembly <2.0Mpa |
| | | | L3 | | | | Simple threaded assembly <0.8Mpa |
| | | | L4 | | | | Threaded component + high pressure seal assembly <2.0Mpa |
| | | | W1 | | | | Flange type components >2.0Mpa |
| | | | W2 | | | | Flange type heat dissipation component (high temperature type) |
| | | | W3 | | | | The sampling pipe is flanged to the pipe under test on site |
| | | | W4 | | | | The sampling pipe is threaded to the pipe under test on site |
| Practical pipe diameter | | | | | |
| | Based on the actual inner diameter of the pipe at the user site (for example, the inner diameter of the pipe is 300mm, it is indicated by the number 300) |
Address:
No. 3 Building, Huizhi Industrial Park, Baimeng Huigu Zhong Chuang Industrial Park, Longjing Avenue, High-Tech Zone, Jingmen, Hubei, China
Business Type:
Manufacturer/Factory
Business Range:
Instruments & Meters
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
Hubei Nan Kong Instrument Technology Co., Ltd. Is the headquarters of the Nan Kong instrument, the production base, We have obtained ISO 9001: 2015 and ISO 14001: 2015 International Quality System Certifications, We also obtained several Patent Certificates regarding to the process instrumentations, has the aging test equipment, the critical flow sonic nozzle gas detection equipment, static volumetric method liquid calibration equipment, electromagnetic compatibility testing equipment and perfect test and inspection equipment. So that we have the production of accurate measurement, safe and reliable quality products, and have a perfect reliability control ability.
Through our cooperation with universities and scientific research institutions, we constantly launch new products, and actively adopt new materials and new technologies to improve the reliability and stability of products, and can customize and develop special products according to customer requirements.
Guangzhou Nan Kong Automation Equipment Co., Ltd. Is a branch of Nan Kong instrumentation sales and R & D department, is a collection of flow meters, level meters, temperature meters and control system R & D, production, sales, service as one of the high-tech enterprises. We have set up production bases in hubei and tianjin, as well as branches in wuhan, chengdu and xi ′an.
Through our reasonable price, timely delivery, perfect after-sales service system, so that customers in the purchase, use, maintenance of products in the process can enjoy fast worry-free service.
