Drum-type Gasmeters TG-Series (Wet-Type)

Packing Liquids Autin-B

1. General

Autin-B is a Paraffin Oil (white oil) without Polyolefin. It is colourless, clear and odourless.

2. Application

Autin-B can be used in all RITTER Drum-type Gas Meters. As opposed to water as a Packing Fluid, Autin-B can be used under 0°C as well. It also has a lower evaporation rate. Because of this, the Packing Liquid level remains stable over a longer period of time. This leads to an improvement in the repeatability of measurement results, and in a reduction in the required frequency of Packing Liquid level monitoring.

The use of Autin-B is further recommended when the gas should remain dry or when the gas
reacts with water.

Not appropriate for chlorine gas.

3. Advantages

  • Use under 0°C
  • less evaporation than water due to its lower vapour pressure, resulting in greater stability of the Packing Fluid level and in more consistent measurement result
  • the gas remains dry
  • in general, a lower chemical reactivity with water

4. Solubility (Bunsen* coefficient at 1013 mbar, 20°C)

Air

0,07-0.08

Ammonia

0,18

Carbon Dioxide

0,90

Nitrogen

0,06

Oxygen

0,12

* Bunsen coefficient (N ml/ml): volume of gas, reduced to Normal condition (1013 mbar, 0°C), dissolved in the volume unit of fluid.

5. Kennwerte

Properties:

20

°C

37,0

mm2/sec (= cSt)

 

40

°C

16,0

mm2/sec

 

100

°C

3,6

mm2/sec

Density:

15

°C

0,85

g/ml

Vapour pressure:

20

°C

< 0,1

mbar

Boiling range:

335-410

°C

 

 

Pour point:

-24

°C

 

 

Flashpoint:

>150

°C

 

 

Appearance:

Colourless, clear. odourless fluid

Subject to alterations

 



Dr.-Ing. Ritter Apparatebau GmbH & Co. KG · Coloniastr. 19-23 · D-44892 Bochum (Germany) · Phone: +49-234-280077 · Fax: +49-234-280078 · E-Mail: mailbox@ritter.de