Orifice Flow Meter

  • Orifice Flow Meter
Orifice Flow Meter
  • Dedan
  • China
  • 30 days
  • 50 sets/month

Throttle device is the most historic and most extensively used flow measurement instrument. Its features are simple structure, easy installation, stable performance and high accuracy, etc.

Orifice flow meter

Throttle device is the most historic and most extensively used flow measurement instrument. Its features are simple structure, easy installation, stable performance and high accuracy, etc merits. It can be used for flow measurement for liquid, steam and gas in modern industries. 

orifice flow meter





Summary Orifice Flow Meter

Throttling orifice is suitable for automatic control, piping and other professional situations in the engineering design, here are several occasions which are frequently used :

a. It required that fluid with small flow continuously passing it, such as analysis on the sampling pipeline, pump flush pipeline, hot standby pump bypass line and so on, can set the current limit orifice to implement;

b. It required fluid step-down occasions, such as setting limit flow orifice after the control valve to minimize the pressure drop on the valve, reduce the noise of the valve, reduce the wear of  valve seat and valve element, avoid liquid flash vaporization and cavitation phenomenon behind the valve, prolong the service life of the valve; Fluid requires step-down, you can use the current limit orifice plate to step-down for the application that step-down precision is not high;

c. Application required fluid step-down and current limiting, such as setting the current limit orifice plate on bypass control valve, in order to prevent the operation of the bypass, liquid pressure drops too fast or causes danger such as liquid evacuated. For piping emptying system, when big pressure drops and produces a lot of noise, you can use current-limiting orifice plate to reduce the noise, to improve the production environment.

Model Selection Table

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 flow meter


figure 1  Nominal diameter code and meaning

Code

01

016

02

026

03

04

05

06

08

10

DN

mm

10

15

20

25

32

40

50

65

80

100

in


1/2

3/4

1

1-1/4

1-1/2

2

2-1/2

3

4


Code

12

15

20

25

30

35

40

45

50

60

DN

mm

125

150

200

250

300

350

400

450

500

600

in

5

6

8

10

12

14

16

18

20

24


Code

70

80

90

91

92

93





DN

mm

700

800

900

1000

1100

1200





in

28

32

36

40

44

48





· LGXL Throttling Orifice

 flow transmitter

Figure 2 Nominal pressure code and meaning

Code

01

02

03

04

05

06

10

11

15

16

PN

MPa

1.6

2.0

2.5

4.0

5.0

6.3

10.0

11.0

15.0

16.0

Class


150



300



600

900



Code

25

26

42








PN

MPa

25.0

26.0

42.0








Class


1500

2500








 

Figure 3 Straight pipe code and meaning

Code

None

A

B

C

D

E

F

Meaning

Throttling element

Throttling element

Installation of flange

Throttling element

Installation of flange Upstream and downstream straight pipe

Throttling element

Installation of flange Upstream and downstream straight pipe

Upstream and downstream connecting flange

Throttling element

Installation of flange Upstream and downstream straight pipe

Upstream connecting flange

Throttling element

Installation of flange Upstream and downstream straight pipe

Downstream connecting flange

Welding Structure



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