Valve for separating product media in the pipes of a product-carrying system

A valve for separating product media in pipes of a product-carrying system, comprising:

• a valve housing having a valve housing interior and defining an axial direction,
• a valve body arranged in said valve housing interior,
• a drive element connected to said valve body for moving said valve body in said axial direction,
• a sealing diaphragm for sealing said valve housing interior against a drive side, said sealing diaphragm having
• a radially extending diaphragm body, said diaphragm body having a radially inner opening through which said drive element reaches, said diaphragm body further having a radially outer edge region and a radially inner edge region, said radially inner edge region surrounding said radially inner opening, said radially outer edge region being clamped radially and said radially inner edge region being clamped axially,
• said sealing diaphragm being manufactured from a dimensionally stable plastic which is thermally resistant up to at least approximately 130° C.,
• wherein said radially inner edge region of said diaphragm body is clamped between a first element and a second element of said drive element, an end side of said first element, which end-side faces said diaphragm body, having a projection which faces said diaphragm body and engages in said radially inner edge region of said diaphragm body, and
• wherein said projection is spaced apart radially from an inner edge of said radially inner edge region of said diaphragm body.

A valve for separating product media in pipes of a product-carrying system, comprising:

• a valve housing having a valve housing interior and defining an axial direction,
• a valve body arranged in said valve housing interior,
• a drive element connected to said valve body for moving said valve body in said axial direction,
• a sealing diaphragm for sealing said valve housing interior against a drive side, said sealing diaphragm having
• a radially extending diaphragm body, said diaphragm body having a radially inner opening through which said drive element reaches, said diaphragm body further having a radially outer edge region and a radially inner edge region, said radially inner edge region surrounding said radially inner opening, said radially outer edge region being clamped radially and said radially inner edge region being clamped axially,
• said sealing diaphragm being manufactured from a dimensionally stable plastic which is thermally resistant up to at least approximately 130° C.,
• wherein said radially inner edge region of said diaphragm body is clamped between a first element and a second element of said drive element, an end side of said first element, which end-side faces said diaphragm body, having a projection which faces said diaphragm body and engages in said radially inner edge region of said diaphragm body, and
• wherein a region of said end side of said first element, which end side is adjacent to said radially inner edge of said radially inner edge region of said diaphragm body, is rounded as seen radially inward.