GESTRA UNA 46, Оригинальная инструкция по установке

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48
Pressure & temperature ratings
You can find the values for your equipment on the
rating plate.
Operating data
Models with sightglass:
PN16: maximum operating temperature 240 °C at
12.3 bar operating pressure
Class 150: maximum operating temperature
240 °C at 12.4 bar operating pressure. °°C, the
glass will suffer more wear.
Models with measurement electrode NRG 16–19 or
NRG 16–27, PN40/Class 300:
maximum operating temperature 238 °C at 32 bar
operating pressure
Models with SIMPLEX-P control unit with Perbunan
roller ball: maximum operating temperature 40 °C
at ΔPMX of 16 bar.
Models with DUPLEX control unit with control
membrane: The maximum operating temperature is
equal to the saturated steam tempe5 K.
According to the AD 2000 regulation, the
temperature limit is 300 °C for resistance to
intercrystalline corrosion on UNA 46A, material
1.4408.
The maximum differential pressure ΔPMX of the
device depends on the orifice used.
UNA 45, UNA 46 and UNA 46A
Orifice ΔPMX
[bar]
Hole diameter [mm]
DN 15-25 DN 40-65
2 2 8 15.0
4 4 6 12.5
8 8 4.8 10.0
13 13 4.1 8.5
22 22 3.5 7.0
32 32 3.0 6.5
UNA 47, DN 15–50
Orifice ΔPMX
[bar]
Hole diameter [mm]
16 16 8.5
28 28 7.0
45 45 6.5