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Bourdon Tube Pressure Gauge

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Bourdon Tube Pressure Gauge

XMAS Tree Gauge All Stainless Steel Construction
Model No: 23X.54

EN 837-1

ASME B40.100

Design ASME B40.100 & EN 837-1

Sizes 2½” & 4” (63 & 100 mm)

Accuracy class 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 Pressure from 15 psi to 15,000 psi or other equivalent units of pressure or vacuum

Working pressure 2½”: Steady: 3/4 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: +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 tight (NEMA 4X / IP 65)

Pressure connection Material: 316L stainless steel Lower mount (LM) or center back mount (CBM) - 2½” Lower mount (LM) or lower back mount (LBM) - 4” 1/4” NPT or 1/2” NPT limited to wrench flat area

Bourdon tube Material: 316L stainless steel 2” & 2½”: 1,000 PSI: C-type, 1,500 PSI: helical type 4”: 1,500 PSI: C-type, 2,000 PSI: helical type

Movement 300-series stainless steel

Dial White aluminum with black lettering; 2½” size with stop pin

Designed specifically for oilfield well heads.

Suitable for corrosive environments compatible with 316 stainless steel wetted parts for liquid or gaseous media which will not obstruct the pressure system.