Industrial thermometer type Dc with union nut


Product description

Possible areas of application

Industrial thermometer type Dc with union nut (nominal size 200)

Long service and measurement accuracy without wear for industrial applications such as machine and plant engineering, pipeline construction as well as power plants. This version with union nut is a special version to be used with neck tube/double treaded nipple and weld-in protection tubes.



Nominal size 200 mm,  aluminum, V-shaped, completely polished, gold-coloured anodized (or silver-coloured upon request). Numerals of reading scale printed on the right side. Printing black-colored for easy readability. Straight types adjustable to any desired viewing position and locked by brass nut, wrench size 22. Angle thermometers (90 degrees) have a grooved adapter piece with locking screw. Advantage: When mounting the thermometer, it is not necessary to turn the casing.

Glass inserts (Capillaries)
Capillary tube of solid glass, bar-shaped, prismatic (optic enlargement of the column, except for high temperature types), diameter approx. 6 mm, oval opening, with yellow background for mercury* and white background for blue fluid column. Scale is deeply burnt in black, thus being absolutely resistant. The main graduations, which correspond with the printing on the casing, are especially clearly outlined.

Thermometric liquid
In the standard version from -30 to 250 °C blue thermometric fluid (“Fü”).

Immersion tube
Standard version immersion tube made from stainless steel and fitting made from brass. The diameter of the type “Dc” immersion tube is 6.5 mm; the wall thickness 0.25 mm, especially made for protection tubes according to DIN 43772, form 4 with 7 mm bore. For further information, please see chapter "thermometer protection tubes".

Scale intervals and error limits
SIKA thermometers fulfil the requirements of DIN 16195 „Requirements and testing of industrial glass thermometers“. Scale intervals and error limits are defined in relation to the casing size and the display range.


* Legal advice

According to regulation no. 847/2012 of European Union, thermometers with mercury filling are only bound for export outside the EU. Placing them on the market inside the EU after April 10th, 2014 is prohibited. Concerned are industrial thermometers and glass inserts with display ranges 0…300°C and higher, only. In this case, we are recommending the use of our dial or digital thermometers.


Technical features

Technical features

Thermometer type Straight
Angle 90°
Display ranges

-30...50 °C
0...60 °C
0...100 °C
0...120 °C
0...160 °C
0...200 °C
0...250 °C
Immersion tube length

The lengths of the immersion tubes are in line with protection tubes DIN 43772, Form 4

155 mm
215 mm
275 mm
295 mm
355 mm
415 mm
Union nut made of brass M24 x 1,5 / SW32

Immersion tube material

> fitting
> tube


stainless steel

 Options (on request, at extra cost)

  • Other measuring ranges
  • Other immersion tube lengths and materials
  • Other connection threads
  • Silver-coloured casing
  • Thermometer completely free of non-ferrous metal
  • Limit thermometer with 1 pair of limit indicators - adjustable to any interval
  • Thermometer with sealing sleeve - reduces the penetration of moisture into the immersion tube (outdoor mounting, low temperature applications)



Contact us

For inquiries or further informations please contact our product specialists by using the contact form below. Thank you!
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