Model 111.12DW

Bourdon Tube Pressure Gauge

Black Plastic Case Drinking Water Series,
Center Back Mount

Selected documents
Sales contact




  • Safe for applications where water is anticipated to be used for human consumption
  • For applications in which products must comply with the 2014 US Safe Drinking Water Act and NSF 61/372

Product Features

  • Brass wetted parts with lead content ≤0.25%.
  • NSF/ANSI 61 listed and certified to NSF/ANSI 372 and conforms with the lead content requirements for lead-free plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act


EN 837-1 & ASME B40.100

Sizes (All sizes not stocked)
1½", 2" and 2½" (40, 50 and 63 mm)

Accuracy class
+3/2/3% of span (ASME B40.100 Grade B)

Ranges (All ranges not stocked)
Vacuum/Compound to 30" Hg (-1 bar) / 0 / 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 600 psi (40 bar) or other equivalent units of pressure or vacuum (Drinking water applications typically do not exceed 300 psi/20 bar)

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. Percentage of span.

Pressure connection
Material: Lead-free copper alloy (lead content ≤0.25%)
Center back mount (CBM)
1/8" NPT (size 1½")
1/4" NPT (size 2" & 2½")

Bourdon Tube
Material: Lead-free copper alloy

No-lead solder

Copper alloy

White plastic with stop pin (1½", 2", 2½")

Black ABS plastic

Black plastic

Clear plastic, snap-fit

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