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

Fire sprinkler systems

Suitable for all media that will not obstruct the pressure system or attack copper alloy parts