RMG 850 Safety relief valve
Relative to the pressure of the pre-adjusted spring setting level, the pressure to be regulated by the RMG 850 is added to the lower side of the twin-skin unit via the pulse line of measurement. The amplification valve is locked in normal operating conditions; the strain in the upper and lower diaphragm chambers is similar. The valve in the double-diaphragm system activates when the pressure to be measured reaches the predetermined point of the measurement unit and thus decreases the pressure in the piston chamber below the piston. The RMG 850 pressures on the top of the piston outlet system force the sleeve against the strength of the closing spring in the opening direction.