SIGHT GLASS ASSEMBLY

摘要

A sight glass assembly (300) comprises a main body (310) which has an annular extension (320), the annular extension (320) defines a bore (321) which communicates with a cavity (312) formed in the main body (310); and a cylindrical or disk- like glass member (330), which is firmly held in the bore (321) of the annular extension (320), achieving a gas and fluid tight sealing between the periphery of the glass member (330) and the inner surface of the annular extension (320). The main body (310) is made of stainless steel, and the glass member (330) is joined to the annular extension (320) through sintering process. And a process of joining a stainless steel member and a glass member (330) by sintering is provided.