A lead-through device for a wall comprising first and second pipe fitting elements. A supporting element is connected to the second pipe fitting element by way of an elastic portion which allows limited displacement of the supporting element in relation to the second pipe fitting element at least in the direction of a longitudinal center axis. The primary sealing toward the outside is achieved by the sealing element borne by the flange of the first pipe fitting element.

A lead-through device for a wall comprising first and second pipe fitting elements. A supporting element is connected to the second pipe fitting element by way of an elastic portion which allows limited displacement of the supporting element in relation to the second pipe fitting element at least in the direction of a longitudinal center axis. The primary sealing toward the outside is achieved by the sealing element borne by the flange of the first pipe fitting element.

A device for the sealed closing of an opening for one or more elongate parts to pass through includes a sealing and/or clamping element with at least two interacting first and second parts that are axially displaceable relative to one another, and a pressure contour acting axially onto the sealing and/or clamping element. A first axial displacement of the pressure contour and an axial displacement of the at least one second part relative to the at least one first part causes a first change in geometry of the at least one first part transversely to the displacement direction. Also, a further axial displacement of the pressure contour causes a further change in geometry of the at least one first part transversely to the displacement direction such that the opening is sealed around the one or more elongate parts passing therethrough.

A device for the sealed closing of an opening for one or more elongate parts to pass through includes a sealing and/or clamping element with at least two interacting first and second parts that are axially displaceable relative to one another, and a pressure contour acting axially onto the sealing and/or clamping element. A first axial displacement of the pressure contour and an axial displacement of the at least one second part relative to the at least one first part causes a first change in geometry of the at least one first part transversely to the displacement direction. Also, a further axial displacement of the pressure contour causes a further change in geometry of the at least one first part transversely to the displacement direction such that the opening is sealed around the one or more elongate parts passing therethrough.

A penetration fitting assembly includes a base assembly including first and second gasket halves and first and second base halves, a pipe gasket, and a cap assembly including first and second cap halves. The gasket halves each include first and second semi-annular portions, and the base halves each include a semi-annular face plate defining openings, a semi-annular groove in a front surface of the face plate, a reinforcement flange extending along an outer peripheral edge of the face plate, and a second semi-annular groove in an outer surface of the reinforcement flange. The pipe gasket includes an annular portion defining a central opening, and stem portions extending in opposite directions from the annular portion. The cap halves each include a semi-cylindrical sidewall defining a semi-annular groove, a semi-circular cap plate connected to the semi-cylindrical sidewall, and a channel defined by the semi-circular cap plate.

A penetration fitting assembly includes a base assembly including first and second gasket halves and first and second base halves, a pipe gasket, and a cap assembly including first and second cap halves. The gasket halves each include first and second semi-annular portions, and the base halves each include a semi-annular face plate defining openings, a semi-annular groove in a front surface of the face plate, a reinforcement flange extending along an outer peripheral edge of the face plate, and a second semi-annular groove in an outer surface of the reinforcement flange. The pipe gasket includes an annular portion defining a central opening, and stem portions extending in opposite directions from the annular portion. The cap halves each include a semi-cylindrical sidewall defining a semi-annular groove, a semi-circular cap plate connected to the semi-cylindrical sidewall, and a channel defined by the semi-circular cap plate.

A rigid entry fitting configured to form a seal between a flexible pipe segment and a sump wall includes a fitting body having an inner surface defining a tapered opening, an insert received in the tapered opening, a shell received in an opening of the insert, a first pair of gaskets between an outer surface of the insert and the inner surface of the fitting body, a second pair of gaskets contacting an inner surface of the shell and opposite ends of the insert, and a nut configured to engage threads on an outer surface of the fitting body. When the nut is threaded onto the threads, the nut presses the shell and the insert into the tapered opening and presses the first pair of gaskets against the inner surface of the fitting body and the second pair of gaskets against the outer surface of the flexible pipe segment.

A cable connecting assembly includes a tubular member, a securing member, a seal unit, and a hollow barrel member that defines an accommodating space. The tubular member is disposed in the accommodating space and has two annular grooves. The securing member has a coupling portion abutting against the tubular member and threadedly engaging the barrel member, and an abutment portion abutting against the barrel member. The seal unit includes two first seal rings respectively disposed in the annular grooves and sealingly contacting an inner surface of the barrel member, and a second seal ring sleeved on the coupling portion of the securing member and sealingly contacting the inner surface of the barrel member and the abutment portion of the securing member.

A cable connecting assembly includes a tubular member, a securing member, a seal unit, and a hollow barrel member that defines an accommodating space. The tubular member is disposed in the accommodating space and has two annular grooves. The securing member has a coupling portion abutting against the tubular member and threadedly engaging the barrel member, and an abutment portion abutting against the barrel member. The seal unit includes two first seal rings respectively disposed in the annular grooves and sealingly contacting an inner surface of the barrel member, and a second seal ring sleeved on the coupling portion of the securing member and sealingly contacting the inner surface of the barrel member and the abutment portion of the securing member.

A trench is dug under an above ground water storage tank either before erection of the walls or after the wall is erected. A (rectangular) sump is preferably made of ? inch steel. It serves as a conduit from an inner tank liner port to an outside tank fill or drain port. The system eliminates hoses hung over the top edge of the tank wall. A pump can fill the tank from the outer port. The tank can be drained using head pressure of the water and/or a pump.