HYBRID REDUNDANT SEAL FOR REFRIGERANT SYSTEMS

摘要

A connection system for carrying a refrigerant may provide a hybrid redundancy in sealing a refrigerant flow from the surround system environment. The connection system may include a first sealing ring of a first type and a second sealing ring of a second type positioned downstream from the first sealing ring. In some embodiments, the first sealing ring may be in a groove positioned around the outside diameter of a male fitting. The second sealing ring may be positioned at an interface between the male fitting and a female fitting. In some embodiments, flanges of each fitting define the interface so that the second sealing ring may be positioned between the flanges of each fitting. The second sealing ring may be selected from a material that has a wider range of operating temperature than the first sealing ring so that in the event of failure in the first sealing ring, the second sealing ring may prevent leakage.

主权项

1. A connection system, comprising: a male fitting including a first groove positioned around an outer diameter of the male fitting and a radially extending flange projecting from the outer diameter of the male fitting;
a female fitting including an inner diameter disposed to receive the male fitting, said female fitting further including a radially extending flange projecting from the outer diameter of the female fitting, wherein the flange projecting from the outer diameter of the male fitting and the flange projecting from the outer diameter of the female fitting abut at an interface of the male fitting to the female fitting, the female fitting including a second groove at the interface of the male fitting to the female fitting; a first sealing ring in the first groove; and a metallic sealing ring in the second groove to form a secure seal.