The time interval for control and servicing depends primarily on the operating conditions of the RMG 674 and the form of gas media used. There are therefore no defined times. The maintenance periods stated in the DVGW are suggested.
The regulated pressure is provided by the pulse line at the top of the highly sensitive dual-diaphragm system and correlates with the pressure of the fixed-point mechanism. The amplifier is placed in a normal operating environment. The tube configuration is depressurized by control of the voltage itself. The amp valve opens from the measuring line to the pressure converter when the line pressure increases to the given RMG 670 actuator over-pressure limit (or decreases to the underphrase limit of the RMG 671 actuator).
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