WIKA Bourdon Tube Pressure Gauge, Copper Alloy (111.11)

Welding gauge ISO 5171


  • Compressed gas regulators
  • Beverage dispensing machines
  • Suitable for all media that will not obstruct the pressure system or attack copper alloy parts

Product features

  • UL-listed (UL-252a or UL-404)
  • SS Z&N coated or gold-painted steel case
  • Free of oil and grease

Sales Contact (Wika.sales@asyatrafo.com)



ASME B40.100


1½”, 2” & 2½” (41, 53 & 68 mm)

Accuracy class

± 3/2/3% of span (ASME B40.100 Grade B)


Vacuum / Compound to 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 6,000 psi (400 bar)
or other equivalent units of pressure or vacuum

Working pressure

Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short time: full scale value

Operating temperature

Ambient: -40°F to 140°F (-40°C to 60°C)
Media: 140°F (+60°C) maximum

Temperature error

Additional error when temperature changes
from reference temperature of 68°F (20°C)
+0.4% of span for every 18°F (10°K) rising or falling.

Pressure connection

Material: Copper-Alloy
Lower Mount (LM): 1½”, 2” and 2½”
Center Back Mount (CBM); 1½”and 2”
1/8” NPT, ¼” NPT, limited to wrench flat area
Restrictor Press-fit, 0.012″ orifice

Bourdon Tube

Material: copper alloy
≤ 870 psi (60 bar): C-shape
> 870 psi (60 bar): Helical


Copper alloy


White aluminum with stop pin and black lettering
“USE NO OIL” in red


Black aluminum, non-adjustable


1½”: gold-painted steel
2” & 2½”: SS Z&N coated (=brass polished look) or
gold-painted steel


Twist-lock clear polycarbonate