VKF10.../KF11... Gas butterfly valve
Used in combustion equipment of control mechanisms, as gas regulating valves, air regulating valves, flue gas dampers, etc
Product features
1. Effective rotation angle 5-85 °
2. Applicable to I III series gases, air and smoke below 180 ° C
3. Suitable for weakly corrosive biogas and recovered gases
Specification parameters
Gas type I III series gas and air ≤ 1% H2S, ≤ 1% NH3
Operating pressure ≤ DN100, maximum 150KPa
≥ DN125, maximum 100KPa
When the effective rotation angle torque reaches a maximum of 85 ° low pressure (up to 300 mbar), an actuator of 2.5 Nm or 3 Nm can be used. When operating at high pressure, it is recommended to use a 10 Nm actuator
Working environment operation standard EN 60721-3-3:1995+A2:1997
Climate condition level 3K5
Mechanical condition level 3M2
temperature range 
Air and smoke -15...+1809C