| 摘要 |
<p>STEAM TRAP INCLUDING INTERCHANGEABLE BODY MEMBER AND INSERT ASSEMBLY HEINZ K . HETZ A valve body member and various insert assemblies usable with the body member to form steam traps of different types are disclosed in this application. The body member includes an internally threaded, generally cylindrical recess extending inwardly from an outer surface and terminating in an end face, an inlet passage communicating with the recess through a passageway terminating in the end face of the recess, and a discharge passage also communicating with the recess. An annular rib is formed on the end face of the recess around the passageway and includes a surface on which is seated a sealing ring clamped in place by a bearing surface of the particular insert assembly used to form the steam trap, an annular seat is formed on the outer surface of the body member around the cylindrical recess and this seat receives another sealing ring which is clamped in place by another bearing surface of the insert assembly. All of the insert assemblies further include a threaded portion that cooperates with the internally threaded portion of the recess to retain the insert assembly and the body member in assembled relationship. Certain of the insert assemblies may include a plurality of parts which may be retained in assembled relationship by a retaining ring arranged to facilitate assembly and disassembly of the insert assembly and the body member.</p> |
