All Dry Pressure Gauges

Logo Badotherm


All Stainless Steel 40mm process gauge

Badotherm’s pressure gauge model BDT1-218 is manufactured according to the EN837-1 and is available in full stainless steel. This 40mm gauge is mainly used as local indicator on pneumatic systems like pressure reducers or pump systems.


  • All Dry Pressure Gauges - BDT1-218A

    Bottom connection (LM), direct mounting

  • All Dry Pressure Gauges - BDT1-218D

    Center back connection (CBM), direct mounting


Design standard


Dial size, ranges & accuracy

Possibilities in ranges and accuracy. Accuracy class is based on dry gauges.

Dial sizeRangesAccuracy
40mm0…1 bar – 0…400 bar
0...15 psi – 0...5800 psi

Process connection

sizeStandard threadOptionalSW Size
40mmG 1/8 A or 1/8” NPT¼” with adapter nipple12mm

Materials of construction

  • Case :AISI 304
  • Bezel :AISI 304
  • Connection1 :AISI 316
  • Sensing element1 : AISI 316
  • Movement : Brass
  • Pointer : Aluminium
  • Dial : Aluminium
  • Window : Gasket Cardboard
  • Window : Glass
1) wetted materials

Pressure limitations

The gauge are built to withstand harsh environments however the EN 837 limits the use of a pressure gauge according below table.

Dial sizeSteadyFluctuatingShort time
40mm0.75 x FSV0.67 x FSVFSV

FSV: full scale value

Temperature limitations

The gauges can withstand ambient and process temperature up to a certain limit. The limitations on temperature are:

Dry case-40°C …+60°C-40°C…+200°C

The variation of indication caused by the effect of temperature shall not exceed: ± 0.4% / 10K FSV

Window Standard

Standard BDT1-218 gauges have an glass window.


Standard pointer is a fixed black painted aluminum pointer.

Dial facing

The dial plate is made from aluminum and coated with UV resistant white coating. The black dial markings, scale, numbering, and interval is according the EN 837. Options like colored dial, customer logo, or colored segments are possible as well. Scale interval and numbering is following the EN837.

Limit stop

To prevent permanent damage the gauge is protected by an vacuum limit stop on the dial.

Degree of protection

The BDT1-218 has a standard degree of protection of IP44. The values are determined according the IEC/EN 60529.


Additional information


BDT1-218A, BDT1-218D

You may also like…