En 
... RF50 D231 85051231 RF50 -1/0bar 1/4 ax Kl.1,6 D231
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Standard Bourdon tube pressure gauges RF50 | 85051231

Standard Bourdon tube pressure gauges Type D2

manufactured goods
Documents

Range-1/0 bar
housing ⌀ (nominal size)50 mm
ConnectionG¼B
alignmentcentre back
accuracy class1,6
standardEN 837-1
Part no.85051231

  • for pneumatic and heating system applications (NG 40 - 50 - 63)
  • for domestic technology and mechanical engineering applications (NG 80 - 100 - 160)
  • robust steel housing
  • window with adjustable reference pointer (NG 80 - 100)
  • with reference pointer on dial (NG 160)
  • Accuracy class 1.6
  • many customised versions available

For gaseous and liquid media which are not highly viscous, do not crystallise and do not attack copper alloys.
! For measuring gas or vapour, observe the table "Selection Criteria as per EN 837-2"!

Type
D2
Nominal size
50 - 50
accuracy class (EN 837-1/6)
1,6
ranges (EN 837-1/5)
see ordering table
application area
static load:
¾ x full scale value
dynamic load:
⅔ x full scale value
short-term:
Full scale value
Operating temperature range
Medium:
max. 60 °C
Ambient:
-20/+60 °C
Temperature performance
Indication error when the temperature of the measuring system deviates from the normal temperature of 20 °C:
bei Temperaturzunahme ca. ± 0,4 %/10 K,
falling temperature approx. ± 0.4 %/10 K
vom jeweiligen Skalenendwert
Degree of protection
IP 32 (EN 60529)

Standard design

Connection
Brass, centre back
Measuring element
Bourdon tube, Copper alloy
≤ 60 bar:
"C" type tube
> 60 bar:
helical tube
movement
Brass
Dial
NG 50: Kunststoff, weiß
Scaling
D231:
D231: dual scale, bar outer, black – psi inner, red
Pointer
NG 50: Kunststoff, schwarz
Housing
Stahlblech, schwarz
push on bezel
NG 50:
window
NG 50: Kunststoff, eingeclipst

Click the corresponding image for detail views, additional information and dimension tables.

NG 40/50/63 – centre back connection, 3-hole fixing, panel mounting bezel

PRO_TEC_BEP_RF40-50-63_D23X-D33X.TIF

AFRISO_STANDARD-BOURDON-TUBE-PRESSURE-GAUGES-RF50_ENG_GBR_20260209_230724961.PDF

AFRISO_ROHRFEDER-STANDARDMANOMETER-TYP-D2_DEU_DEU_20260210_000726879.PDF

datasheet product
Industrial technology
PDF
DOK_TEC_KON_KONFORMITAETSERKLAERUNG.PDF

EU-Konformitätserklärung Druckgeräte

Declarations of Conformity
PDF
AFRISO_STANDARD-BOURDON-TUBE-PRESSURE-GAUGES-RF50-STANDARD-BOURDON-TUBE-PRESSURE-GAUGES_85051231_ENG_GBR.PDF

AFRISO_ROHRFEDER-STANDARDMANOMETER-RF50-ROHRFEDER-STANDARDMANOMETER-TYP-D2_85051231_DEU_DEU.PDF

datasheet variant
Industrial technology
PDF
900_400_0882.PDF

Montage Manometer

operating instructions
Industrial technology
PDF
854_017_0336-00.PDF

Rohrfeder-, Kapselfeder-, Plattenfeder-, Membranfedermanometer für Differenzdruck

operating instructions
Industrial technology
PDF

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