GW-ZQ orifice plate steam flowmeterDetailed product description：

1、 Product Overview:

Orifice flow meters have a long historical background and complete experimental data. Simple structure, no movable parts, stable and reliable long-term use, high precision. Has rich experience in design, manufacturing, and application. High degree of standardization, good linearity, and no need for real flow calibration. The orifice flowmeter has reliable experimental data and a comprehensive international and national standard GB2624-93. It has inherent huge markets both domestically and internationally, with familiar users and comprehensive data; Following international standards for calculation, processing, and flexible and convenient use; Currently, the most widely used flow meter in China is still the differential pressure flowmeter, which is estimated to account for 75% -85% of the total usage of flow meters according to relevant data. It is widely used in industries such as steam boilers, petroleum, chemical, steel, electricity, water conservancy, papermaking, pharmaceuticals, food, and chemical fibers.

2、 Principle and structure:
When the fluid filled in the pipeline flows through the flow orifice plate inside the pipeline, the flow velocity will form a local contraction at the throttling point of the flow orifice plate, thereby accelerating the flow velocity and reducing the static pressure. Therefore, a pressure drop or pressure difference is generated before and after the standard orifice plate. The larger the flow rate of the medium, the greater the pressure difference generated before and after the flow orifice plate. Therefore, the size of the fluid flow can be measured by measuring the pressure difference. This measurement method is based on the principles of flow continuity equation (law of conservation of mass) and Bernoulli equation (law of conservation of energy).

3、 Main technical parameters
Nominal diameter: DN20-DN1000
Design and manufacture according to the national standard GB/T2624-93
According to the national verification regulation JJG 640-94 for factory inspection
Basic accuracy: ± 0.5%, ± 1%, ± 1.5%
Flow range: ≥ 1:15
Nominal pressure: 0.6, 1.0, 1.6, 2.5, 4.0, 6.4, 10 (MPa)
Tested media: saturated vapor, superheated vapor, water, air, natural gas, other mixed media
Temperature of the tested medium: -10 ℃~+450 ℃
Power supply: Intelligent flow integrator 220VAC, flow transmitter 24VDC (powered by the integrator),
Output signal: 4-20mA DC or RS485 communication
Explosion proof performance: intrinsic safety type ibIICT5

4、 Installation
Can be installed horizontally and vertically, ensuring that the pipe is filled with liquid.
The front and rear straight pipe sections of the orifice flowmeter should be straight, without visible bending to the naked eye, and should be "round". The inner wall should be clean, without pits or sediment.
The length requirements of the straight pipe section and the installation of the throttling device shall comply with the relevant provisions of GB/T2624-93.
Please provide the following detailed data when placing an order:
(1) Name of the tested medium
(2) Maximum, commonly used, and minimum traffic.
(3) Work pressure, working temperature
(4) Medium density and viscosity (water, steam, commonly used gases may not be provided)
(5) Pipeline material, inner diameter, outer diameter