Patent ID: 6341616
Filing Date: 2002-01-29
Classification: F16K,Y10T

Abstract:
A fluid pressure and heat sensitive control valve, comprising:a valve assembly including a right angle valve body having inlet and outlet ports forming a fluid passageway adapted to be interposed in a flow line; a valve seat interposed in the passageway; normally closed piston valve means including a piston valve seated on said valve seat and closing the fluid passageway and having a piston rod end portion slidably projecting outwardly of the valve body; axially collapsible pin means including a collapsible pin having a first end in axial contact with the outwardly projecting portion of said piston rod for releasing said valve means and opening the fluid passageway in response to fluid pressure above a predetermined value collapsing the pin, said pin means including a plate supporting a fusible plug in axial contact with the end of said pin opposite said first end, whereby heat melting said plug allows fluid pressure to bias the valve means to a passageway open position.