Відкрите Акціонерне Товариство Сумський Завод Насосного Та Енергетичного Машинобудування "Насосенергомаш"
Открытое Акционерное Общество Сумской Завод Насосного И Энергетического Машиностроения "Насосэнергомаш"
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Priority to UA95073387ApriorityCriticalpatent/UA29602C2/en
Publication of UA29602C2publicationCriticalpatent/UA29602C2/en
A safety valve has a body cover and piston – this tightens protected cavity. The valve has hermetic, movable in axial direction piston seal, and force originated as result of pressure drop between the cavity protected by the piston and environment effecting the piston is taken by set pins, at force exceeding the limit of strength of those pistons those are cut and open the valve. The number, dimensions and material of the pins determine the pressure of operation of the safety valve.