Application:

• in boiler rooms, district heating systems, cooling devices, cooling towers, heating systems, and air conditioning units as control or shut-off valves
• for open and closed circuits 

Features: 

• for cooling, warm, hot water, water with antifreeze additive, brine, saturated and superheated steam - see catalogue sheet for media compatibility and permissible temperature ranges 
• when using the valve series VVF53.., VXF53... with spindle heating and at media temperatures below -5°C, the spindle seal must be replaced
• stroke 20 mm (up to DN 50 inclusive) and 40 mm (from DN 65)
• nominal flow coefficient Kvs from 0.16 to 630 m3/h
• for steam, the valve operates with reverse flow direction