Industrietechnik
VFL2125-200 VFL2/VFL3 - 2- and 3-way DIN-standard flanged valve
Control valves intended for use in heating, cooling and ventilation systems. They are intended to be used together with the SE 18, SE 25 actuators. The valves have DIN-standard lengths.
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Specifications
| Nominal diameter | DN125 |
|---|---|
| Kvs | 200 m 3 /h |
| Stroke | 40 mm |
| Actuator | SE18, SE25 |
| Pressure rating | PN16 |
|---|---|
| Connection | Flanged according to EN 1092-2 |
| Flow characteristics | A → AB: 0-30 % open = linear, 30 - 100 % open = equal percentage B → AB: linear |
| Max. leakage | A - AB: DN65…DN80 = max 0.1 % of the kvs value, DN100…DN150 = max 0.2 % of the kvs value B - AB: Max 2 % of the kvs value |
| Media | Hot water, cold water, glycol-mixed water |
| Media temperature | -5…+120°C |
| Rangeability | 100:1 |
| Body | Cast iron Grade 200 |
| Seat | Cast iron Grade 200 |
| Plug | Stainless steel 1.4301 |
| Stem | Stainless steel 1.4301 |
| Packing box | Brass CW 617N |
| Bonnet | Cast iron Grade 200 |
| O-rings | EPDM |
| Packing | Aramid reinforced rubber |