Safety overflow valve

In the safety overpressure valve, the steam pressure on the cone surface and the opening spring are counteracted by a centrally mounted, single-sided oil cylinder, which is brought into the closed position. The valve therefore operates according to the relief principle. The pressure of the steam is reduced by means of the proven stepwise expansion process, which keeps noise levels and vibrations to a minimum. The cooling water is supplied via two connections located on the side of the housing closure and injected behind the last expansion stage, where it is atomised directly by a high-pressure partial steam flow.