Valve operating system

Details Valve operating system Valve operating system

F - Mech Eng,Light,Heat,Weapons

16

K

137/113

F16K 31/02 (2006.01) F16K 31/08 (2006.01) G04G 15/00 (2006.01)

Patent

CA 1260798

ABSTRACT VALVE OPERATING SYSTEM The system is particularly suitable for controlling a solenoid valve SV1 having two stable operating positions in accordance with programmed 'on' and 'off' periods set at a 24 hour timer 10. The valve typically in one position connects a gas supply to a regulator ensuring the latter then supplies gas at a higher pressure; and in the other position connects the regulator to atmosphere through a vent stack so that the regulator then supplies gas at a lower pressure. The system is powered by 3 volt batteries B1, B2 and has extremely lower current consumption giving a battery life of 5-6 years. The solenoid 18 is energised briefly by voltage pulses fed from a capacitor C5 via a reversing switch 16. Automatic battery voltage checking is incorporated.

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