Siemens VXF31.80 80mm 3Port Flange Valve Kv-78.Heating Controls
| Functional data | PN class | PN 10 to ISO 7268 |
| Working pressure | to ISO 7005 within the permissible medium temperature range according to the diagram on |
Permissible media :chilled water, low temperature hot water, high temperature hot water, water with anti-freeze, brine;
recommendation: water treatment to VDI 2035
Medium temperature 2) -10…+150 °C
Rangeability Sv DN 15…40: >50
DN 50…150: >100
Nominal stroke DN 15…80: 20 mm
