Siemens VKP40.15 Proportional Controlling Element

Proportional controlling element designed for fitting between counter-flanges, for
integration into gas trains.

• Wide modulation range
• Flanged connections 1/2"
• Angular rotation 90°
• Suited for use with gases of families I...III and air
• For use with actuators SQN13, SQN30, SQN72, SQM33, SQM4 or SQM5
• Can be attached to VGD2 double gas valves

Specifications

Housing Size: DN40

Nominal Size Of Built In Rotational Cylinder: 15

Available Flange Sizes (AGF10): 1/2"

Air-volumetric flow m³/h at ˆ p 1 kPa when fully open: 11

Option when used in connection with burner management system LMV2/LMV3

A screw can be fitted to provide a mechanical stop either at an angular position of
approx. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the
mechanical stop at -5°. Depending on the position of the stop, the reference travel
(LMV2/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly
fitted / connected or interchanged air or gas actuators can be detected.