Patent ID: 7703472
Filing Date: 2010-04-27
Classification: B01D,F16K,Y10T

Abstract:
1. A gas flow isolation device for isolating the flow of gas from one module into one or more other modules joined to said one module through one or more common headers, said gas flow isolation device including: an inlet passage and an outlet passage including a flow restricting orifice through which gas passes to reduce the pressure of gas downstream of said orifice, said inlet passage being adapted to communicate with an outlet from said one module to receive a flow of gas from said one module, and said outlet passage communicating with said inlet passage for receiving said flow of gas and directing said gas out of said isolation device; a module isolation valve movable from an opened condition to a closed condition to prevent the flow of gas from the inlet passage to the outlet passage when the pressure of the gas in the isolation device exceeds a predetermined level, said module isolation valve including: whereby said rupture disk will rupture upon a predetermined pressure differential occurring across the rupture disk to cause the valve member to seat against the valve seat and terminate the flow of gas from the inlet passage to the outlet passage and also through the rupture disk.