Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Sulzer Freres SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer Freres SAfiledCriticalSulzer Freres SA
Priority to ES0197896UpriorityCriticalpatent/ES197896Y/en
Publication of ES197896UpublicationCriticalpatent/ES197896U/en
Application grantedgrantedCritical
Publication of ES197896YpublicationCriticalpatent/ES197896Y/en
Valve, preferably stop valve, perfected, which is actuated by intercalating a control valve by the means itself whose passage is to be closed, characterized in that the valve body carries a piston-shaped section, the end of which is located in the valve body. the opposite side of the valve seat enters a space hermetically closed to the environment which can be communicated by means of the control valve at will with the pressure side of the shut-off valve or with a space of lower pressure, resting on the piston surface of the valve body located in front of the hermetic space a pressure spring that is in the hermetically closed space. (Machine-translation by Google Translate, not legally binding)
A valve of safety applicable to the assembly of the hydraulic apparatus of valves of pressure and discharge. (Machine-translation by Google Translate, not legally binding)