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Model 432.50, 433.50 Diaphragm Pressure Gauge
Brand: WIKA Alexander Wiegand SE & Co. KGDiaphragm pressure gauges measure gauge, absolute and differential pressure. In processing industries, they can be installed in applications with highly corrosive, viscous media.
Features- Threaded or open flange process connections
- Wide selection of special materials
- All stainless steel construction
- High overpressure safety
- Ranges from 6" H20 (16 mbar)
Specifications
Design
- EN 837-3
Sizes
- 4" & 6" (100 & 160 mm)
Accuracy Class
- ± 2.5 % of Span
Ranges
- Vacuum / Compound to 300 psi (20 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 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, not exceeding 600 psi (40 bar)
Operating Temperature
- -4° F to +158° F (-20° to +70° C)
- For Ranges ≤ 25" H₂O (60 mbar)
- Ambient: -4° to +140° F (-20° to +60° C)
- Medium: +212° F (+100° C) Max.
- Storage: -40° F to +158° F (-40° to +70° C)
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 Tight (IP65) - Liquid-filled Case
- Weather resistant (NEMA 3 / IP54) - dry Case
Case & Upper Diaphragm Housing
- Material: Stainless Steel
- Case with Pressure relief disc and Stainless Steel bayonet Ring
Pressure Connection & Lower Diaphragm Housing
- Material: 316L Stainless Steel
- Lower Mount (LM)
- 1/2" NPT Female
Diaphragm Element
- ≤ 100" H₂O (250 mbar): 316 Stainless Steel with PTFE lining
- All Ranges with FPM (Viton) Sealing Gasket
- > 100" H₂O (250 mbar): Inconel (NiCr-Alloy) with PTFE lining
Movement
- Material: Stainless Steel
Dial
- White Aluminum with Black Lettering
Pointer
- Black Aluminum, Adjustable - Type 432.50
- Black Aluminum, Non-Adjustable - Type 433.50
Window
- Laminated Safety Glass with Buna-N Gasket
Case Filling
- Standard dry
- Glycerine 86.5 % - Type 433.50
- With liquid filled case for applications with high dynamic pressure pulsations or vibration
- Suitable in corrosive environments for gaseous, liquid or highly viscous media.
- Process industry: chemical/petrochemical, power stations, mining, on and offshore, environmental technology, mechanical engineering and plant construction