System for dynamically sealing a conduit sleeve through which a pipe or cable extends

Abstract

A system for dynamically sealing an opening through which at least one pipe, cable or duct extends via a conduit sleeve wherein the system comprises at least an elastically deformable plug which is fittingly and sealingly insertable in the conduit sleeve, the plug having two ends, an outer side and an inner side, the outer side comprising a number of outer ribs having tops spaced apart in a longitudinal direction of the plug, the inner side comprising a number of inner ribs having tops spaced apart in the longitudinal direction of the plug, the inner side comprising a number of inner ribs having tops spaced apart in the longitudinal direction of the plug, wherein the inner side and/or the outer side is provided with at least one hingeable surface area.

1 . A system for providing a sealed transit for a situation wherein one or a plurality of cables, pipes or ducts extend through the transit, wherein the system comprises a frame which, using a sealing gasket, is sealingly fixable onto an opening, wherein the frame comprises a conduit which is suitable for receiving at least one of the plurality of cables, pipes or ducts and for receiving an elastically deformable plug for sealingly filling space between an inner circumferential wall of the conduit and the at least one of the plurality of cables, pipes or ducts, wherein the system further comprises a blocking element for hindering in the conduit movement of one end of a plug which is inserted in that conduit, the blocking element comprising a substantially ring shaped element, wherein the blocking element is fixed and integrally connected to the frame, the frame and the blocking element comprising together a single piece, the frame being provided with a flange for bolting to a part of a partition that surrounds an opening. 
     
     
         2 . A system according to  claim 1 , wherein the frame is machined out of a single block of material. 
     
     
         3 . A system according to  claim 1 , wherein the conduit has an inner circumferential wall with a surface which has a low coefficient of friction. 
     
     
         4 . A system according to  claim 1 , wherein the frame is made of an engineering plastic. 
     
     
         5 . A system according to  claim 4 , wherein the engineering plastic is a hard plastic comprising polyetherimide (PEI) or, alternatively, polyethersulfonamide (PES). 
     
     
         6 . A system according to  claim 1 , wherein the system comprises at least one additional blocking element for hindering in the conduit simultaneous and equal movement of both ends of a plug relative to the conduit sleeve in which that plug is inserted. 
     
     
         7 . A system according to  claim 1 , wherein the system further comprises at least one elastically deformable plug which is fittingly and sealingly insertable in the conduit. 
     
     
         8 . A system according to  claim 1 , wherein the conduit has a length which is suitable for receiving a plug in its entirety. 
     
     
         9 . A system according to  claim 8 , wherein each conduit has a length which is suitable for receiving two plugs neighbouring each other in axial direction. 
     
     
         10 . A system according to  claim 9 , wherein each conduit has a part of the at least one blocking element positioned in the conduit such that on either side of the blocking element the conduit has a length which is suitable for receiving a plug in its entirety. 
     
     
         11 . A system according to  claim 10 , wherein the plug has two ends, an outer side and an inner side, each end having dimensions which allow for fitting of that end in the conduit, the outer side comprising a number of outer ribs having tops spaced apart in a longitudinal direction of the plug for realising annular contact surfaces between the plug and the inner circumferential wall of the conduit, the inner side comprising a number of inner ribs having tops spaced apart in a longitudinal direction of the plug for realising annular contact surfaces between the plug and the at least one cable pipe or duct extending through the conduit sleeve, wherein the inner side and/or the outer side is provided with at least one hingeable surface area for facilitating compression of the plug in the longitudinal direction and a transverse movement of at least one of the inner or outer ribs. 
     
     
         12 . A system according to  claim 11 , wherein the hingeable surface is provided by two adjacent sloped surfaces of two adjacent ribs. 
     
     
         13 . A system according to  claim 11 , wherein the hingeable surface is provided on the inner side. 
     
     
         14 . A system according to  claim 11 , wherein the plug is an assembly of at least two segmental longitudinal parts. 
     
     
         15 . A system according to  claim 1 , wherein the blocking element is provided by a decrease of diameter of the conduit. 
     
     
         16 . A system according to  claim 12 , wherein the hingeable surface is provided on the inner side. 
     
     
         17 . A system according to  claim 12 , wherein the plug is an assembly of at least two segmental longitudinal parts. 
     
     
         18 . A system according to  claim 13 , wherein the plug is an assembly of at least two segmental longitudinal parts.