Description of DN20 Natural Gas Flow Meter

Description :

　　This product has strong anti-interference ability, high accuracy, no mechanical rotating parts, is not easy to corrode, compact structure, high reliability, good stability, and low maintenance.

　　1、 Technical parameters:

　　Caliber: DN15~DN3000mm

　　Nominal pressure: 0.6-42MPa

　　Operating temperature: -180~+500 ℃

　　Accuracy of natural gas flowmeter: ± 0.2 to ± 1.5% FS

　　Range ratio: 1:10

　　Shell: Carbon steel; Stainless steel (or provided according to user requirements) (lined with fluorine)

　　Power supply method for natural gas flowmeter: built-in 3.6VDC lithium battery (changed every two years); External supply 24VDC (optional)

　　Output signal of natural gas flowmeter: 4-20mA two-wire system; Pulse frequency range of 0-1000Hz; RS232/RS485 (or to be provided upon user request)

　　Protection level: IP65 IP67

　　Explosion proof mark: intrinsic safety type ExiallCT4; Explosion proof ExdllCT4

　　Execution standard: Enterprise standard Q/BET05-06

　　Header display: Accumulated traffic; Instantaneous flow rate; Operating temperature; Operating pressure (only available with temperature pressure compensation)

　　2、 Characteristics:

　　Adopting precision bearings specifically designed for imported instruments, with high accuracy and good stability, it can be used without refueling for five years under normal conditions.

　　The carefully designed flow channel structure avoids the flow of air between the bearings and improves the medium adaptability of the turbine flowmeter.

　　The unique reverse thrust structure and sealing structure design ensure the long-term reliable operation of the bearing.

　　The flowmeter head can rotate 180 °, making installation and use simple and convenient.

　　Design a rectifier with excellent rectification performance, with low requirements for the front and rear straight pipe sections.

　　Adopting low-power high-tech, it can work with both internal and external power sources, and the internal battery can work continuously for more than five years.

　　3、 Installation:

　　When installing the flowmeter, it is strictly prohibited to directly weld at its inlet and outlet flanges to avoid burning out the internal parts of the flowmeter.

　　Newly installed or overhauled pipelines must be cleaned to remove debris before installing flow meters.

　　The flowmeter should be installed in a location that is easy to maintain, free from strong electromagnetic field interference, strong mechanical vibration, and thermal radiation effects;

　　Flow meters should not be used in situations where flow is frequently interrupted and there is strong pulsating flow or pressure pulsation;

　　When installing the flowmeter outdoors, there should be a cover on the upper part to prevent rainwater from entering and direct sunlight from affecting the service life of the flowmeter;

　　The flowmeter can be installed at any angle, and the flow direction of the fluid should be consistent with the flow direction indicated on the flowmeter;

　　In pipeline construction, consideration should be given to installing expansion pipes or corrugated pipes to avoid serious stretching or breakage of flow meters.

AfterSalesService :

• Description of DN20 Natural Gas Flow Meter