Design
EN 837-3
Sizes
4” & 6” (100 & 160 mm)
Accuracy class
± 1.5% of span
Ranges
Vacuum / Compound to 300 psi (20 bar)
Pressure from 6” H2O (16 mbar) to 100" H2O (250 mbar), 6" (160 mm) flange diameter
Pressure from 6 psi (400 mbar) to 360 psi (25 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
5 x full scale value, max. 600 psi (400 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: 316L stainless steel
Lower mount (LM)
1/2” NPT female
Case and upper diaphragm housing
Material: stainless steel
Case with solid-baffle wall and blowout back and stainless steel bayonet ring
Diaphragm element
≤100” H2O (250 mbar): 316 stainless steel
>100” H2O (250 mbar): Inconel® (NiCr-alloy)
All ranges with FPM (Viton) sealing gasket
Movement
Stainless steel
Dial
White aluminum with black lettering
Pointer
Black aluminum, adjustable -Type 432.30
Black aluminum, non-adjustable-Type 433.3z0
Window
Laminated safety glass with Buna-N gasket
Case fill
Glycerine 86.5%