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Specifications
Design
EN 837-3
Sizes
4” & 6” (100 & 160 mm)
Accuracy class
±1.5% of span
Ranges
Vacuum/Compound to 600 psi (40 bar)
Pressure from 6” H2
O (16 mbar) to 100” H2
O (250 mbar),
6” (160 mm) flange diameter
Pressure from 6 psi (400 mbar) to 600 psi (40 bar),
4” (100 mm) flange diameter
or other equivalent units of pressure or vacuum
Working pressure
Steady: full scale value
Fluctuating: 0.9 x full scale value
Overpressure safety
Choice of 600 psi (40 bar) or 1,500 psi (100 bar)
Operating temperature
Ambient: -4°F to +140°F (-20°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) ±0.8% of span for every 18°F
(10°K) rising or falling.
Weather protection
Weather resistant (NEMA 3 / IP54) - dry case
Weather tight (NEMA 4X / IP66) - liquid-filled case
Pressure connection and lower diaphragm housing
Material: 316 stainless steel
Lower mount (LM)
1/2” NPT female
Upper diaphragm housing
≤100” H2
O (250 mbar): Chrome steel
>100” H2
O (250 mbar) Stainless steel
Diaphragm element
≤ 100” H2
O (250 mbar): 316 stainless steel
> 100” H2
O (250 mbar): Inconel® (NiCr-alloy)
All ranges with FPM/FKM (Viton) sealing gasket
Movement
Stainless steel