KROHNE DW 181-182-183-184 EN User Manual

Page 30

Installation and operating instructions DW 181 - 184

Flow table

DW 184 for measuring tube

Flow velocity

Scale ratio

m/s

ft/s

≥DN250 (10”) 0.2

…

0.4 0.66

…

1.31

1 : 2

(or 65)

0.2

…

1 1.31

…

3.28

1 : 2.5

…

4 3.28

…

13.12

1 : 4

13.12

1 : 4

6.2

Instrument version materials

Version Cap

Gasket

Measuring
system

Measuring
tube

Connection Housing

DW 181/B

Stainless
Steel 316 L

Buna Stainless

Steel 316 L

Bronze Bronze Polycarbonate

DW 181/RR Stainless

Steel 316 L

Buna Stainless

Steel 316 L

Stainless
Steel 316 L

Polycarbonate

DW 182/RR Stainless

Steel 316 L

Buna Stainless

Steel 316 L

Stainless
Steel 316 L

Polycarbonate

DW 183/N

Stainless
Steel 316 L

Buna Stainless

Steel 316 L

Steel Steel Polycarbonate

DW 183/R

Stainless
Steel 316 L

Buna Stainless

Steel 316 L

Stainless
Steel 316 L

Steel * *

Polycarbonate

DW 183/RR Stainless

Steel 316 L

Buna Stainless

Steel 316 L

Stainless
Steel 316 L

Polycarbonate

DW 184/N

Stainless
Steel 316 L

Buna Stainless

Steel 316 L

Steel Steel Polycarbonate

DW 184/R

Stainless
Steel 316 L

Buna Stainless

Steel 316 L

Stainless
Steel 316 L

Steel * *

Polycarbonate

DW 184/RR Stainless

Steel 316 L

Buna Stainless

Steel 316 L

Stainless
Steel 316 L

Polycarbonate

*Viton, silicone, or Klingerit gaskets on request. DW 184/R: steel-clad flanges used in all cases.
* *Steel flanges for >DN100 or 4” instruments have stainless steel 316 L cladding.