LG Standard Orifice Meter Throttle Device

There are several methods to measure the flow rate of medium through pipelines, but the most widely used and common one is differential pressure flow meter.It is composed of the throttle device and the differential pressure gauge or the throttle device and the differential pressure transmitter together with the secondary table.Typical application of flow throttling device: medium and high velocity gas such as steam and compressed air.



Orifice flowmeter

1、Characteristic

It has the characteristics of high measurement accuracy, convenient installation, wide application range and low cost.Widely used in various media flow range.

Orifice Flow Meter


2、Specifications

    Dn20~3000mm


Orifice flow meter model


4、Product schematic diagram

Schematic diagram of orifice flow meter

Schematic diagram of orifice flow meter


Standard nozzle

1、Characteristic

High temperature and pressure resistance, impact resistance, long service life, large range of measurement, high measurement accuracy. Suitable for power plant high temperature and high pressure steam flow, hot network pipeline, high velocity fluid flow measurement.

Has two forms:A: ISA1932 nozzles (standard nozzles)

              B:Long diameter nozzle


2、Specifications

    DN<1000mm


Standard nozzle flow meter model


4、Product schematic diagram

Schematic of standard nozzle


Classic Venturi tube / Venturi nozzle

1、Characteristic

It has the characteristics of small pressure loss, high measuring accuracy, short front and back straight pipe length and long service life.Suitable for water and gas flow measurement.


2、Specifications

    50<DN<3500mm


Double venturi meter model


4、Product schematic diagram

Two venturi flow meter diagram


Annular orifice plate、round orifice plate、 eccentric orifice plate

1、Characteristic

It is difficult to plug and has short front and back straight pipe.It is suitable for the measurement of gas and liquid containing dust and impurity in blast furnace gas and coke oven gas.


2、Specifications

DN50-3500mm


Orifice flow meter model


4、Product schematic diagram

Schematic diagram of orifice flow meter


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