GB2607751A

GB2607751A - Above ground drainage fitting and system, method of making such fitting and kit for assembling a customised above ground drainage fitting, and elements

Info

Publication number: GB2607751A
Application number: GB2211321.1A
Authority: GB
Inventors: William Skeldon Steven; Korné Brinkhuis Earnst
Original assignee: Wavin BV
Current assignee: Wavin BV
Priority date: 2020-01-14
Filing date: 2021-01-06
Publication date: 2022-12-14
Anticipated expiration: 2041-01-06
Also published as: NL2024671B1; GB202211321D0; GB2607751B; EP4090873A1; WO2021145761A1

Abstract

A kit for assembling a customised above ground drainage fitting of a desired type, comprises a plastic base element 20 and a set of plastic add-on elements 30. The base element 20 has a tubular body through which a drainage flow channel for drainage liquid extends. An outside has at least one visibly demarcated region for providing, or provided with, an entrance to the drainage flow channel. The plastic add-on elements 30 are separate from and not attached to the base element 20. Each add-on element 30 has an add-on body mountable on the tubular body of the base element 20 to seal off, in an at least liquid tight manner, the entrance. An add-on passage extends through the add-on body, from a base element-side of the add-on body 30 to an exterior side of the add-on body 30. This provides access to the drainage flow channel through the add-on body. The fitting can be made by mounting on the base element 20 a selection of add-on elements 30 selected from the set based on the desired type.

Claims

1. A kit for assembling a customised above ground drainage fitting of a desired type, comprising: a plastic base element, comprising: a tubular body through which a drainage flow channel for drainage liquid extends, the tubular body having an outside with at least one visibly demarcated region for providing, or provided with, an entrance to the drainage flow channel; a set of plastic add-on elements which are separate from and not attached to the base element, for assembling the fitting by mounting on the base element a selection of add-on elements selected from the set based on the desired type, in which set each add-on element comprises: an add-on body mountable on the tubular body of the base element to seal off, in an at least liquid tight manner, the entrance; an add-on passage extending through the add-on body, from a base element-side of the add-on body to an exterior side of the add-on body facing away from the base element-side, for providing access to the drainage flow channel through the add-on body.

2. The kit of claim 1, wherein in at least one of the add-on elements of the set: the add-on passage forms, when the add-on element is mounted on the base element, an added fluid flow channel for a branch flow into, or out of, the drainage flow channel; and the add-on passage comprises an inlet port and an outlet port, the base element-side being provided with a respective one of said ports and the exterior side with another one of said ports.

3. The kit of claim 2, wherein the branch flow has a branch flow direction non-parallel to a flow- direction in the drainage flow channel.

4. The kit of claim 3, wherein the branch flow direction is at an angle relative to the flow- direction in the drainage flow channel selected from the group consisting of: 5°, 15°, 30°, 45°, 67.5°, 76°, 87.5°, 90°.

5. The kit of one or more of claims 2-4, wherein the add-on passage has the same diameter as the drainage flow channel.

6. The kit of one or more of claims 2-4, wherein the add-on passage has a smaller diameter than the man drainage flow channel.

7. The kit of one or more of the preceding claims, wherein at least one of the add-on elements of the set comprises at least two add-on passages extending through the add-on body, each add on passage having a respective base element-side opening.

8. The kit of one or more of the preceding claims, wherein in at least one of the add-on elements of the set: at least one add-on passage has an access opening at the exterior side, for providing an access through which the drainage flow channel can be visually and/or physically accessed from the exterior for inspection and/or maintenance of the drainage flow channel, and the kit further comprises a lid for closing-off the access opening in an at least liquid-tight manner.

9. The kit of claim 8, wherein the lid is for closing-off the access opening in a gas-tight manner.

10. The kit of one or more of the preceding claims, wherein: at least one of the add-on elements comprises: a flange for closing off the entrance, the flange having a contact area for contacting the tubular body in at least in a perimeter of the tubular body which encloses the demarcated region, the contact area having a shape conforming to the perimeter; and the add-on body projects from the flange.

11. The kit of claim 10, wherein in at least one of the add-on elements the flange is oblong.

12. The kit of claim 10 or 11, wherein in at least one of the add-on elements the flange has a shape corresponding to the shape of a respective open end of the tubular body.

13. The kit of one or more of the preceding claims, wherein the drainage flow channel is unbranched and comprises: an inlet opening for receiving a drainage liquid into the drainage flow channel, and a discharge opening for discharging the drainage liquid from the drainage flow channel.

14. The kit of claim 13, wherein the tubular body extends from a discharge liquid inlet side end with the inlet opening to a discharge liquid outlet side end with the discharge opening.

15. The kit of one or more of the preceding claims, wherein the drainage flow channel is straight, and the tubular body is a straight tube.

16. The kit of one or more of the preceding claims, wherein: the tubular body is provided with a larger demarcated region for providing, or provided with, a larger entrance and a smaller demarcated region within the larger demarcated region, for providing, or provided with, a smaller entrance and the set comprises: a first add-on element with an add-on body mountable on the tubular body of the base element to seal off the larger entrance, and a second add-on element with an add-on body mountable on the tubular body of the base element to seal-off the smaller entrance.

17. The kit of claim 16, wherein in at least one of the larger demarcated regions at least two smaller demarcated regions lie.

18. The kit of one or more of the preceding claims, wherein the tubular body comprises at least two non-overlapping demarcated regions.

19. The kit of claim 18, wherein the non-overlapping demarcated regions are distributed circumferentially over an outer wall of the tubular body.

20. The kit of one or more of the preceding claims, wherein the tubular body has an outer wall provided with a visible marking which defines a closed demarcated region in which the entrance is closed-off from the exterior of the tubular body by the outer wall, and the entrance can be opened to the exterior by removing the material of the tubular body in the demarcated region defined by the marking.

21. The kit of claim 20, comprising a local weakening of the outer wall corresponding to the location of the visible marking.

22. The kit of claim 20 or 21, wherein the visible marking encloses the demarcated region.

23. The kit of one or more of claims 20-22, wherein the marking is formed by a ridge on the outer wall.

24. The kit of one or more of claims 20-23, said tubular body having an outer wall provided with an opening forming at least one of the demarcated regions.

25. The kit of one or more of claims 20-24, wherein at least one of the demarcated regions on the outer wall is oblong.

26. The kit of one or more of the preceding claims, wherein at least one of the add-on elements is attachable to the tubular body in the demarcated region by a snap-fit connection.

27. The kit of one or more of the preceding claims, wherein the tubular body and the add-on elements are made of joinable materials, joinable to form a permanent joint between the tubular- body and the add-on element, by for example welding, gluing, soldering brazing.

28. The kit of one or more of the preceding claims, wherein: at least one demarcated region is located at an open end of the tubular body, at least one of the add-on elements is mountable on the end to have the passage in the prolongation of the drainage flow channel.

29. The kit of claim 28, wherein the add-on element forms when mounted on the end a spigot or a socket for another above ground drainage fitting or above ground drainage pipe.

30. The kit of one or more of claims 28-29, wherein the passage forms a constriction of the drainage flow channel.

31. The kit of one or more of the preceding claims, wherein the set of add-on elements comprises at least one add-on element selected from the group consisting of: branch connector, socket connector, single socket connector, multiple socket connector, angled branch connector, access branch.

32. The kit of one or more of the preceding claims, further comprising: a covering element mountable on the base element to cover the entrance in a selected demarcated region, the covering element being attachable to the tubular body to seal-off and close-off the entrance in an at least liquid tight manner.

33. A plastic base element for the kit of one or more of the preceding claims.

34. A plastic add-on element for the kit of one or more of the preceding claims.

35. An above ground drainage fitting, comprising: a plastic base element of a kit as claimed in one or more of the preceding claims, with the entrance open in at least one demarcated region, and at least one plastic add-on element of the kit attached to the base element, the add-on element sealing-off the open entrance, with the add-on passage in communication with the drainage flow channel via the entrance.

36. The fitting of claim 35, wherein the above ground drainage fitting is an above ground soil drainage fitting.

37. The fitting of claim 35 or 36, wherein the fitting is at least one of the group consisting of: branch fitting, socket fitting, bossed fitting, access fitting, bend, reduces, manifold, ancillary fitting.

38. An above ground drainage system, comprising an above ground soil and/or waste discharge stack comprising at least one soil and/or waste discharge pipe and a fitting as claimed in one of more of claims 35-37 connected to the discharge pipe.

39. A method of manufacturing a customised above ground drainage fitting, comprising: establishing a desired type of above ground drainage fitting; selecting, out of the set of add-on elements of a kit according to one or more of claims 1- 32, selected add-on elements, of the type and in the number required for the desired type; positioning each of the selected add-on elements onto the tubular body of the base element of the kit with the base element side facing the tubular body and the exterior side facing away from the tubular body, and with the base element-side opening in a respective demarcated region provided with the entrance and the add-on passage of the respective add-on element in communication with the drainage flow channel via the entrance; and mounting the positioned add-on elements on the tubular body with the entrance being seal-off by the add-on element.

40. The method of claim 39, performed in-situ at a construction site or in a building where an above ground drainage system with the customised fitting is to be installed.

41. The method of claim 39, performed off-site from a construction site or in a building where an above ground drainage system with the customised fitting is to be installed.

42. The method of one or more of claims 39-41, comprising: receiving, prior to said positioning, finished base elements and add-on elements at a location different from a manufacturing site where the plastic base element and/or the add-on elements have been moulded.

43. The method of one or more of claims 39-42, wherein said mounting comprises: fixating the selected add-on elements in a position in respective demarcated regions with the add-on passage in communication with the drainage flow channel, and liquid-tight sealing off an interface between the tubular body and the fixated add-on elements.

44. The method of one or more of claims 39-43, comprising: selecting on the base element at least one demarcated region with a closed entrance, and removing the material of the tubular body to open the entrance.