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High Precision

Bourdon Tube Pressure Gauges

Test Series Types 341.11 & 342.11

Pressure gauge for testing, calibration and laboratory measurement.

Fluid medium does not clog port or corrode Ni-Span C and stainless steel.

Size: 10" (250 mm)


341.11: + 0.25% of span (ASME Grade 3A)

342.11: + 0.10% of span (ASME Grade 4A)

Ranges: (All ranges not stocked)

Vacuum / Compound to 30"HG / 0 / 200 PSI

Pressure from 10 PSI to 20,000 PSI

or other equivalent units of pressure or vacuum

Calibrating medium:

< 400 PSI: gas

> 400 PSI: oil

Working Range:

Steady: Full scale value

Fluctuating: 0.9 x full scale value

Operating Temperature:

Ambient: -4F to 140F (-20C to 60C)

Media: max. 212F (+100C)

Temperature Error:

Additional error when temperature changes from reference

temperature of 68F (20C) +0.04% for every 18F (10C)

rising or falling. Percentage of span.



Material: stainless steel

Lower mount (LM)

1/4" NPT Female


Bourdon Tube:

Material: Ni-Span C

Vacuum 30" Hg C-type

< 1500 PSI, C-type

> 1,500 PSI, Helical type



Copper alloy with Argentan wearable parts



White aluminum with black lettering,

330 mirrored band scale,

zero adjustment by rotatable dial 15



Knife-edge, black aluminum



341.11: black painted steel case and friction-fit ring

342.11: Cast aluminum, dark grey, enameled finish with

built-in profile ring for panel mounting. Two panel mounting

brackets included.


Weather Protection:

Weather resistant (NEMA 4 / IP 54)


Standard Scales:

PSI, Inches of water

download the full datasheet

(PDF format)


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