Bourdon Tube Pressure Gauge Stainless Steel Case Type 212.53 – Dry Case Type 213.53 – Liquid-filled Case

Design
ASME B40.100 & EN 837-1

Sizes
2”, 2½” & 4” (50, 63 & 100 mm)

Accuracy class
2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1% of span (ASME B40.100 Grade 1A)

Ranges
Vacuum / Compound to 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 15,000 psi (1,000 bar)
Pressure from 15 psi (1 bar) to 10,000 psi (700 bar) – 2” size or other equivalent units of pressure or vacuum

Working pressure
2 & 2½”:   Steady:   ¾ full-scale value
Fluctuating:  2/3 full-scale value
Short time: full-scale value

4”:             Steady: full-scale value
Fluctuating: 0.9 x full-scale value
Short time: 1.3 x full-scale value

Operating temperature
Ambient: -40°F to +140°F (-40°C to +60°C) – dry
-4°F to +140°F (-20°C to +60°C) – glycerine filled
-40°F to +140°F (-40°C to +60°C) – silicone filled
Medium: +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.

Weather protection
Weather tight (NEMA 4X / IP 66)

Pressure connection
Material: copper alloy
Lower mount (LM) or center back mount (CBM) –
Lower mount (LM) or lo er back mount (LBM) – 4”
⅛” NPT, ¼” NPT or ½” NPT limited to wrench flat area ABS (2” & 2½”) and white aluminum (4”)