초록 ▼

Apparatus for handling process fluid, that is a meter includes a mass flow meter block. A deformable metal seal is positioned between the mass flow meter block and a thermal mass flow sensor in deformable engagement with a pair of edges formed thereon to provide a low contamination, high integrity m

Apparatus for handling process fluid, that is a meter includes a mass flow meter block. A deformable metal seal is positioned between the mass flow meter block and a thermal mass flow sensor in deformable engagement with a pair of edges formed thereon to provide a low contamination, high integrity metal seal.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for handling process fluid, comprising:a metal block having a block sealing groove formed on a flat face thereof and terminating in a block sealing edge formed substantially flush with the flat face;a metal removable connection fitting connected to the metal blo

[ What is claimed is:] [1.] Apparatus for handling process fluid, comprising:a metal block having a block sealing groove formed on a flat face thereof and terminating in a block sealing edge formed substantially flush with the flat face;a metal removable connection fitting connected to the metal block in fluid communication therewith, the metal removable connection fitting having a connection sealing groove formed on a flat face thereof, the connection sealing groove terminating in an offset, relative to said block sealing edge, connection sealing edge formed substantially flush with the flat face, the metal block and the metal removable connection fitting defining an internal flow path;a removable metal seal having an inner circumferential edge, an outer circumferential edge and a pair of flat faces and being positioned between the metal removable connection fitting and the metal block so that as the removable connection fitting and the metal block are assembled, the flat faces are moved toward each other and the offset block sealing edge and connection sealing edge engage said removable metal seal deforming said removable metal seal into a configuration having a pair of relatively wide end portions and relatively narrow middle portion with a seal being effected at the offset block sealing edge and connection sealing edge, the inner circumferential edge and the outer circumferential edge being substantially free of contact with the metal block and the metal removable connection fitting and the inner circumferential edge being in communication with the flow path, the seal being free of virtual leak paths and without the removable metal seal locking the metal block to the metal removable connection fitting; anda locator connected to the seal for positioning the seal with respect to the edges prior to sealing engagement.