Method and device for determining a calorific value and gas-powered device with such a device
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Measuring device and method for measuring the oxygen content of a flue gas stream
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System for heating industrial thermal water, has controllable pump arranged in circulation line, electrical heating element arranged in heater arrangement with switches, and pump connected with steering control unit
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Usually actuator
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Double seat valve with safe closing function
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Device for controlling the amount of fuel through a fuel line
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Valve train-assembly for valve, particularly gas valve, has drive motor for driving spindle gear, and free-wheel clutch, which is arranged between spindle gear and drive motor
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Intrinsically safe pressure sensor
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Regulating device for premix burner, has throttle element arranged downstream to throttle device in fuel supply spacer, and mixer arranged downstream from fan to air supply pipe and downstream from throttle element to fuel supply spacer
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Valve combination with improved test routine
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Solenoid valve with magnetic closing sleeve
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Detection device for detecting a radiation emitted by a flame
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Valve actuator for gas valves
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Tubular valve device
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Valve unit with two butterfly valves
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Valve i.e. solenoid gas valve, has valve locking link with circular, round or irregular sealing surface, and drive moving link on seat, where contact pressure varying along edge is present between surface and edge in closed condition
