Coaxial gapless guide-through assembly for a filing level sensor

A guide-through assembly for a filling level sensor attachable in or on a vessel, comprising:

• a process connection to connect to a vessel and including an interior circumferential surface,
• an interior conductor arranged within the process connection,
• a solid-state insulating sealing body through which said interior conductor extends and circumferentially surrounds the interior conductor in a positive sealing engagement and is fitted into the process connection in a positive sealing engagement, the insulating sealing body comprising an exterior circumferential surface;
• wherein both the interior circumferential surface of the process connection and the outer circumferential surface of said insulating sealing body have a tapered section;
• wherein the tapered section of said insulating sealing body is fixed into the tapered section of said process connection;
• wherein the interior circumferential surface of said process connection and the outer circumferential surface of said insulating sealing body are wedged against each other in a gas-tight manner;
• wherein both the interior circumferential surface of the insulating sealing body and the outer circumferential surface of said interior conductor have a conical or tapering section;
• wherein the conical or tapering section of said interior conductor is driven into the conical or tapering section of said insulating sealing body;
• and
• wherein said interior conductor extends through a support washer which lies flat against the side of the insulating sealing body facing towards the smaller diameter of the conical section of the interior circumferential surface of said insulating sealing body and is clamped against said insulating sealing body, causing the conical section of the exterior circumferential surface of said interior conductor to be driven into the conical section of the interior circumferential surface of said insulating sealing body and to be wedged against the latter.

A filling level sensor, comprising:

• a guide-through assembly comprising a process connection, an interior conductor positioned within the process connection and a solid-state insulating sealing body through which the interior conductor extends, the solid-state insulating sealing body surrounding the interior conductor in a positive sealing engagement, the solid-state insulating sealing body surrounding is fitted into the process connection in a positive sealing engagement,
• a connection adapter removably connected to the process connection causing the insulating sealing body to be firmly pressed into and wedged against the process connection,
• wherein both the interior circumferential surface of the process connection and the exterior circumferential surface of the insulating sealing body have a conical or tapering section,
• wherein the tapered sections of both the interior circumferential surface of the process connection and the exterior circumferential surface of the insulating sealing body taper towards the interior of the vessel;
• wherein the conical or tapering section of the insulating sealing body is pressed into the conical or tapering section of the process connection;
• and
• wherein the interior circumferential surface of the process connection and the exterior circumferential surface of the insulating sealing body are wedged against each other in a gas-tight manner and the entire exterior circumferential surface of the insulating sealing body is in direct contact with some portion of the interior circumference surface of the process connection.

A filling level sensor, comprising:

• a guide-through assembly comprising a process connection, an interior conductor positioned within said process connection and a solid-state insulating sealing body through which the interior conductor extends, the solid-state insulating sealing body surrounding the interior conductor in a positive sealing engagement, the solid-state insulating sealing body surrounding is fitted into the process connection in a positive sealing engagement,
• a connection adapter removably connected to the process connection causing said insulating sealing body to be firmly pressed into and wedged against said process connection,
• wherein both the interior circumferential surface of the process connection and the exterior circumferential surface of said insulating sealing body have a conical or tapering section;
• wherein the conical or tapering section of said insulating sealing body is pressed into the conical or tapering section of said process connection;
• and
• wherein the interior circumferential surface of said process connection and the exterior circumferential surface of said insulating sealing body are wedged against each other in a gas-tight manner;
• and
• wherein the insulating sealing body includes flat surface, and wherein the guide-through assembly comprises a flat face washer on the flat surface of the insulating sealing body.

A guide-through assembly for a filling level sensor attachable in or on a vessel, comprising:

• a process connection to connect to a vessel and including an interior circumferential surface,
• an interior conductor arranged within the process connection,
• a solid-state insulating sealing body through which said interior conductor extends and circumferentially surrounds the interior conductor in a positive sealing engagement and is fitted into the process connection in a positive sealing engagement, the insulating sealing body comprising an exterior circumferential surface;
• wherein both the interior circumferential surface of the process connection and the outer circumferential surface of said insulating sealing body have a tapered section;
• wherein the tapered section of said insulating sealing body is fixed into the tapered section of said process connection;
• wherein the interior circumferential surface of said process connection and the outer circumferential surface of said insulating sealing body are wedged against each other in a gas-tight manner;
• wherein the tapered sections of both the interior circumferential surface of said process connection and the exterior circumferential surface of said insulating sealing body taper towards the interior of the vessel;
• and
• wherein said interior conductor also extends through a support washer which lies flat against a side of said insulating sealing body facing towards a larger diameter of the tapered section of the exterior circumferential surface of said insulating sealing body and to which an exterior pressure force is to be applied, causing the conical section of the exterior circumferential surface of said insulating sealing body to be driven into the conical section of the interior circumferential surface of said process connection and to be wedged against the latter.