Valve for universal utilization and several purposes

Abstract

The subject of the invention is a valve for universal utilization and several purposes allowing by its formation the relatively high flow in the basic state and slightly open state of the valve even in case of small pressure differences in case of low pressure; furthermore the formation of the valve allows to ensure providing functions depending on the direction of flow that in given case can be regulated regarding back-pressure, partial back-pressure, pressure relief, partial relief limiting functions. The valve according to the invention is made in one piece from a soft, flexible material, and it has a full cross-sectional open basic part (2) at one end, and an intermediate part (3) of decreasing cross-section joining the said basic part (2), as well as a flattened part (4) joining the intermediate part (3) in the other end of the valve (1). It is characterized in that, the flattened part (4) is a structure sintered or pressed or glued in the material of the valve (1), and on the flattened part (4) of the valve (1) a pressed rim (7) made by airtight fixing of the edges of the flattened part (4), preferably by sintering, or pressing or glueing is formed, furthermore the length (L) of the intermediate part (3) is L = 0,5...6 (K / Pi), compared to perimeter (K) in the basic part of the valve (1), in connection with the medium in motion, and the length (N) of the pressed rim (7) in the basic part of the valve (1) compared to perimeter (K) in connection with the medium in motion is N = 0,1...2 (K / Pi).

Description

technical field [0001] The subject of the present invention is a valve suitable for general and multipurpose use, through which the valve is constructed in such a way that even at low pressures, at small differential pressures, it allows a greater High flow rate; moreover, the construction of the valve allows to ensure the function of back pressure, partial back pressure, pressure relief, partial pressure relief which can be adjusted in a given situation according to the direction of flow. Background technique [0002] There are various types of valves used in everyday life. One of the broad classes of valves are general purpose and multipurpose valves, check valves and pressure relief valves in a given situation, to ensure the flow of material between two spaces with different pressures so that when a pressure difference occurs , a given medium in motion flows from a space of higher pressure to a space of lower pressure. The main function of a check valve is to ensure tha...

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of the solutions described above and used in practice is that they can be mainly applied in cases of large pressure differences

Structures that work well at large pressure differences cannot be used efficiently at small pressure differences due to pressure loss settings, or may not work at all

Another disadvantage is that they can only relieve pressure in their closed position, but in their slightly open position they cannot act as check valves, i.e. prevent backflow

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