MK-LG seriesthrottling deviceIt is a standard throttle component that can be produced directly according to national and international standards without calibration. 1. National standard GB/T2624-In 2006, 'Using Safety'Differential pressure device installed in a circular cross-section pipeline filled with fluid to measure flow rate; 2. International standard ISO5167:2003 (E)Measuring Fluid Flow with Differential Pressure DevicesQuantity - Installed in a circular cross-section pipeline filled with fluid.

1、 Standardperforated plate：
1. Characteristics: It has high measurement accuracy, easy installation, wide range of use, and low cost. Widely used for flow measurement of various media.
2. Specifications: DN20～3000mm
2、 Standardspray nozzle
1. Features: It has the characteristics of high temperature and high pressure resistance, impact resistance, long service life, large measurement range, and high measurement accuracy. Suitable for measuring high temperature and high pressure steam flow in power plants, heating network pipelines, and fluid flow with high flow rates.
2. It has two forms: A: ISA1932 nozzle (standard nozzle) B: long diameter nozzle
3、 Classic Venturi Tube Venturispray nozzle
1. Features: It has the characteristics of low pressure loss, high measurement accuracy, short length of front and rear straight pipes, and long service life. Suitable for flow measurement of water and gas.
2. Specification: 50 ＜ DN ＜ 3500mm.
4、 Wing wind measurement device
1. Features: It has the characteristics of low pressure loss, short front and rear straight pipes, and stable measurement. Suitable for measuring air volume in circular or rectangular pipes.
2. Specification: DN80-4000mm (or length x width).
5、 Double Venturi tube
1. Features: It has the characteristics of low pressure loss and stable measurement, suitable for measuring air volume in circular or rectangular pipelines.
2. Specification: DN200-4000mm (or length x width).
6、 Circularperforated plateRound hole plate, eccentric hole plate
1. Characteristics: It has the characteristics of being less prone to blockage and having shorter straight pipes at the front and back. Suitable for measuring gases and liquids containing dust, impurities, and large amounts such as blast furnace gas and coke oven gas.
2. Specifications: DN50-3500mm

2、 Product Features

1. Widely used for flow measurement of gases, vapors, and liquids;

2. Suitable for high and low pressure environments;

3. Simple structure and easy installation;

4. Accurate measurement and stable performance;

5. Widely applicable and cost-effective.

IIISelection instructions

1. The selection table only lists commonly used throttling device models. Other throttling devices can refer to the above table for specifications when consulting and orderingWritten in the bookexplain;

2. For throttling devices with special requirements from users, detailed explanations can be provided in writing, diagrams, etc. The design and manufacturing plan must be confirmed by both parties;

3. Our company's throttling devices are designed and manufactured in accordance with the "Flow Measurement Throttle Device Design Manual". Please specify any special requirements in the specification sheet;

4. Unless otherwise specified by the user, throttling devices with measuring tubes are supplied upstream 10D and downstream 5D;

5. Unless otherwise specified by the user,throttling deviceThe use of flanges is determined by our company, and national standard flanges are preferred.

4、 Order selection

Method for representing the form of throttling elements(TABLE I)

Method of pressure measurement representation (Table 2)

Nominal diameter representation method (Table 3)

Method for expressing nominal pressure (Table 4)

Method for representing straight pipe sections (Table 5)