JPS5372234A - Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
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Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
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JP14895076A1976-12-101976-12-10Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
PendingJPS5372234A
(en)
Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
Safety device providing valve seat and ball valve in hole of cock in closure and being omitted ball valve contacting to valve seat by way of twisting closure by pressure
Safety valve device for enlarging oriental width of orerating angle of safety valve being able to close valve by way of seating ball valve to valve seat by pressure