NORMALLY-CLOSED TYPE BOMB VALVE AS WELL AS BOMB VALVE OPENING ACTUATOR THEREOF AND MANUAL FORCED VALVE OPENER

摘要

PURPOSE:To reduce the cost of a valve system for a normally-closed type bomb valve as a whole by setting up one valve opening actuator to plural units of gas bomb's valves. CONSTITUTION:During conveyance or storage of a gas bomb 1, a valve opening actuator 40 is removed from an actuator supporting part 36 of a bomb valve 2, and a valve member 13 is pressed to a valve seat 12 for closing by dint of resilient force of a valve closing spring 29. When gas in this gas bomb 1 is taken out, first of all, a supported part 54 of the valve opening actuator 40 is attached to the actuator supporting part 36 of the bomb valve 2, then this actuator 40 is operated for opening, and the valve member 13 is separated from the valve seat 12 against the resilient force of the valve closing spring 29. If so, gas in the bomb 1 is taken out to a gas outlet 7 from a gas inlet 6 by way of a valve chest 9.