Bourdon tube pressure gauges

Function of a Bourdon tube pressure gauge

A circularly bended tube is on the one side connected to a socket and on other side it is closed. When there is overpressure inside the bourdon tube it stretches itself to the outside, if there is negative pressure the bourdon tube contracts inwards. This movement of the ending of the bourdon tube is a measure for the incoming pressure and is carried over to a gear segment onto the gear of the movement.

With a bourdon tube pressure gauge you can measure fluids, gases and steams with a positive pressure up to 1000 bar and negative pressure up to 1 bar. The accuracy of the gauges is between ± 0,1% and ± 2,5% of the upper range value.

Material

The bourdon tube will be custom made according to the specific needs. They can be made from non-ferrous metal and for more aggressive mediums materials like SS 316L or Monel can be used.

Ambient temperature/ Medium temperature

The admissible ambient temperature of the pressure gauge is between -40°C and +60°C. The maximum temperature of the medium is +60°C for non-ferrous metal gauges and for UNI gauges +200°C.

Bourdon Tube Gauge R 40, R 50, R 63

  • Diameter 40 / 50 / 63 mm
  • EN 837-1
  • Class 1,6 resp. 2,5
  • Bourdon tube and connection made of brass
  • Plastic window
  • Case made of steel
  • Threading 1/4″ BSP resp. 1/8″ BSP ( for diameter 40 mm)

Datasheet |  Variations and accessories

Bourdon Tube Gauge RU 40

  • Diameter 40 mm
  • EN 837-1
  • Class 1,6
  • Bourdon tube and connection made of stainless steel
  • Window made of polycarbonate
  • Bayonet lock case made of stainless steel
  • Threading 1/8″ BSP or special thread on request

Datasheet | Variations and accessories

Bourdon Tube Gauge RU 50

  • Diameter 50 mm
  • EN 837-1
  • Class 1,6 (> 600 bar class 2,5)
  • Bourdon tube and connection made of stainless steel
  • Window made of polycarbonate
  • Case with crimped-on ring made of stainless steel
  • Threading 1/4″ BSP or special thread on request

Datasheet |  Variations and accessories

Bourdon Tube Gauge RU 63

  • Diameter 63 mm
  • EN 837-1
  • Class 1,6
  • Bourdon tube and connection made of stainless steel
  • Window made of safety glass
  • Bayonet lock case made of stainless steel
  • Threading 1/4″ BSP or special thread on request

Datasheet |  Variations and accessories

Bourdon Tube Gauge R 100

  • Diameter 100 mm
  • EN 837-1
  • Class 1,0
  • Bourdon tube and connection made of brass
  • Window made of glass
  • Bayonet lock case made of stainless steel
  • Threading 1/2″ BSP or special thread on request

Datasheet | Variations and accessories

Bourdon Tube Gauge RU 100

  • Diameter 100 mm
  • EN 837-1
  • Class 1,0
  • Bourdon tube and connection made of stainless steel
  • Window made of safety glass
  • Bayonet lock case made of stainless steel
  • Threading 1/2″ BSP or special thread on request

Datasheet |  Variations and accessories

Bourdon Tube Gauge R 160

  • Diameter 160 mm
  • EN 837-1
  • Class 1,0
  • Bourdon tube and connection made of brass
  • Window made of glass
  • Bayonet lock case made of stainless steel
  • Threading 1/2″ BSP or special thread on request

Datasheet |  Variations and accessories

Bourdon Tube Gauge RU 160

  • Diameter 160 mm
  • EN 837-1
  • Class 1,0
  • Bourdon tube and connection made of stainless steel
  • Window made of safety glass
  • Bayonet lock case made of stainless steel
  • Threading 1/2″ BSP or special thread on request

Datasheet |  Variations and accessories

Bourdon Tube Gauge R 250

  • Diameter 250 mm
  • EN 837-1
  • Class 1,0
  • Bourdon tube and connection made of brass
  • Window made out of Glass
  • Case made of Aluminum
  • Ring made of steel
  • Threading 1/2″ BSP or special thread on request

Datasheet | Variations and accessories

Bourdon Tube Gauge RU 250

  • Diameter 250 mm
  • EN 837-1
  • Class 1,0
  • Bourdon tube and connection made of stainless steel
  • Window made from Safety Glass
  • Bayonet lock case made of stainless steel
  • Threading 1/2″ BSP or special thread on request

Datasheet | Variations and accessories

Bourdon Tube Gauge R 400

  • Diameter 400 mm
  • Class 1,0
  • Bourdon tube and connection made of brass
  • Window made of acrylic glass
  • Case + Ring made of aluminium
  • Threading 1/2″ BSP or special thread on request

Datasheet | Variations and accessories

Bourdon Tube Gauge R 630

  • Diameter 630 mm
  • Class 1,0
  • Bourdon tube and connection made of brass
  • Window made of acrylic glass
  • Case made of alumina
  • Ring made of steel
  • Threading 1/2″ BSP on top or special thread on request

Datasheet | Variations and accessories

Bourdon Tube Gauge R 1000

  • Diameter 1000 mm
  • Class 1,0
  • Bourdon tube and connection made of brass
  • Window made of acrylic glass
  • Case made of aluminum
  • Ring made of steel
  • Threading 1/2″ BSP on top or special thread on request

Datasheet | Variations and accessories

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We are certified

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ATEX certification
All our pressure gauges are certified according to ATEX rules. The actual declarations of conformity can be downloaded.

ISO 9001 certification
Our company has been certified according to ISO 9001 since 1995. The actual certificate can be downloaded.

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TÜV certification
Our production will be checked with monitoring of the final assessment (Module A 1) according to directive 97/23/EC. The actual certificate can be downloaded.

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