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