-
Company Address:
No.11 Zaoyuan Road, Qingdao, Shandong,China -
Tel:
0086-532-58695811 -
E-mail:
kelly@jk-china.net -
Fax:
0086-532-88827111
· 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
| Design | EN 837-3 |
| Nominal size in mm | 100, 160 |
| Accuracy class | Model 422.12: 1.6 Model 423.12: 2.5 (option 1.6) |
| Scale ranges | 0 ... 16 mbar to 0 ... 250 mbar (flange Ø 160 mm) 0 ... 400 mbar to 0 ... 40 bar (flange Ø 100 mm) or all other equivalent vacuum or combined pressure and vacuum ranges |
| Pressure limitation | Steady: Full scale value Fluctuating: 0.9 x full scale value |
| Over pressure safety | 3 x full scale value, however max. 40 bar |
| Permissible temperature | Ambient: -20 … +60 °C Medium: +100 °C maximum Storage: -40 ... +70 °C (scale ranges ≤ 60 mbar: -20 ... +70 °C) |
| Temperature effect | When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.3 %/10 K of the span |
| Process connection with lower measuring flange | Steel, lower mount, G ½ B (male), SW 27 |
| Pressure element | ≤ 2.5 bar: Stainless steel 1.4571 > 2.5 bar: Stainless steel 1.4568 |
| Pressure chamber sealing | NBR |
| Movement | Copper alloy, wear parts argentan |
| Dial | Aluminium, white, black lettering |
| Pointer | Aluminium, black |
| Case with upper measuring flange | Grey cast iron, black |
| Window | Instrument glass |
| Ring | Bayonet ring, stainless steel, black |
| Filling liquid (for model 423.12) | Glycerine 86.5 % |
| Application | Used for low pressure ranges. Through the large working surface of the circular, corrugated diaphragm element, small pressure ranges can be measured reliably. |
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