Design
ASME B40.100
Sizes
2" (50 mm)
1 ½" (40 mm)
Accuracy Class
2": ± 2/1/2% of span (ASME B40.100 Grade A)
1 ½": ± 3/2/3% of span (ASME B40.100 Grade B)
Ranges
Vacuum / compound to 30"Hg/0/300 psi
Pressure from 15 psi up to 6000 psi or other equivalent units of pressure or vacuum
Working Pressure
Steady: ¾ full-scale value
Fluctuating: 2/3 full-scale value
Short time: full-scale value
Operating Temperature
Ambient: -40°F to +140°F (-40°C to +60°C)
Medium: +212°F (+100°C) maximum
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.
Weather Protection
Weather resistant (NEMA 3 / IP 54)
Pressure Connection
Material: 316L SS
Position: Lower mount (LM) & center back mount (CBM)
Type of connection: ¼” NPT - male
Wetted surface finish: Ra < 1.0μm (Ra < 40μinch)-internal
Bourdon Tube
Material: 316L SS
30”Hg (vac) to 1,000 psi, C-type
1,500 to 6000 psi, helical type
Helium leak tested 1 x 10-9 scc/sec (inboard)
Socket
Material: 316L SS
Ra < 1.0μm (Ra < 40μinch) - internal
Movement
Stainless steel
Dial
White aluminum with stop pin and black lettering
Pointer
Black aluminum
Case
304 SS, electropolished
Window
Polycarbonate: twist-lock (2"); snap cap (1½")
Cleanliness
ASME B40.1 Level IV (for oxygen service)
Packaged in single nylon bag
Purged with Nitrogen
Protective cap over threaded connection