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520A1 burner management system is a microprocessor-based burner control with matching system components for the control and supervision of forced draft burners of medium to high capacity
303E2 Gas Valve Actuator (230V)
If the mains voltage drops below about AC 165 V
154P - Gas valve ½" Internally Threaded to ISO 7/1
Siemens VKP40.25 Proportional Controlling Element model_skp15_012u2 520A1 burner management system isProportional controlling element designed for fitting between counter flanges, for integration into gas trains. Wide modulation range Flanged connections 1" 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: 25 Available Flange Sizes (AGF10): 1"
US$ 351.50
US$ 173.00