Design
EN 837-1 & ASME B40.100

Pressure connection
Material: copper alloy
1/4“ NPT lower mount (LM)

Sizes
4” (100 mm)

Movement
Copper alloy

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

Dial

White aluminum with stop pin; black and red lettering

Ranges
0/80 psi, retard to 250 psi (air)
0/300 psi (water)

Pointer
Black aluminum

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

Case
Black polycarbonate

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

Window
Snap-in clear polycarbonate

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

Approvals
UL listed (UL-393)
Factory Mutual

Bourdon tube
Material: copper alloy
C-type