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The leak test is performed as follows: A sample section of about 30 x 20 cm is inspected by an independent expert. The IKT checks the leak tightness of three samples as shown in the images. The red drop consists of local utility water and should have a diameter of about 45 mm. The evaluation is based on the passage of testing liquid through all three sample sections. The two possible results are TIGHT and NOT TIGHT.",{"_uid":610,"name":611,"component":607,"description":612},"338dd1fe-c216-4c31-b19a-19fb6fb1c8d5","Burst lining","Burst lining describes a trenchless rehabilitation procedure by which the old pipe is destroyed and displaced by a hammering burster. In the same course, a new plastic or steel pipe of equal or greater diameter is drawn in.",{"_uid":614,"name":615,"component":607,"description":616},"593e6eff-4fc0-4ce5-ba17-86ea49d69c61","Liner flexural strength","The flexural strength indicates the point at which a pipe liner fails due to excessive tension. If it is too low, then the liner has insufficient load capacity and may break under less than its rated maximum load. This characteristic is measured in a three-point bending test, just like the modulus of elasticity.",{"_uid":618,"name":619,"component":607,"description":620},"a3a412f3-0ed1-4c31-a5ca-0d27db95b44d","Composite materials","A composite material is a composite that is made up of two or more components and that features other material characteristics than its individual components. Our Brandenburger Liner is such a composite material; consisting of resin and ECR glass.",{"_uid":622,"name":623,"component":607,"description":624},"2d8b2a3c-7066-4e7c-adb8-bff4598c26d2","Darmstadt abrasion resistance test","The Darmstadt abrasion resistance test is a test procedure in accordance with DIN EN 295-3 for examining the abrasion resistance of a liner or wastewater pipe and is part of the approval procedure for national technical approval of the DIBt. A half-shell is filled with pebbles, sand and water for the test and the application range is simulated by 200,000 tilting movements.",{"_uid":626,"name":627,"component":607,"description":628},"84ddba99-cd46-4957-8c9d-a5fa7773b53e","ECR glass","ECR glass (E-glass Corrosion Resistant) is an especially corrosion-resistant glass and, unlike the more commonly used E-glass, is not attacked by acidic or base environments. This makes it well suited for use in the aggressive environments of the wastewater sewers.",{"_uid":630,"name":631,"component":607,"description":632},"c0cd49b6-d6b3-43f7-8544-6b16e9475a03","Young's modulus","Pipe liners are exposed to a variety of loads, e.g. groundwater, road traffic, or the pressure of the earth. They need to be designed accordingly and have sufficient load capacity. The Young’s modulus is a key mechanical characteristic in this regard. It is measured by means of a three-point bending test on construction site samples. The measured Young’s modulus (or modulus of elasticity), is compared with the specification. In formulas, it is abbreviated as E . A greater Young’s modulus means that the material resists deformation more. A component made of a material with a high Young’s modulus (e.g. steel) is therefore rigid; a component made of a material with a low Young’s modulus (e.g. rubber) is flexible. What does this mean for our purposes? The glass mats we use are designed to fulfil the load capacity requirements in the cured liner. ADV 75 for instance has a Young’s modulus of 7500 N/mm².",{"_uid":634,"name":635,"component":607,"description":636},"25517706-03bb-4e19-99f8-8f21a3ffa66b","Resins","If exposure to municipal wastewater is a factor, then a group 3 (DIN 18 820 T1) or type 1140 (DIN 16 946 T2) is generally used. For aggressive industrial wastewater, e.g. containing alkaline solutions and/or with high temperatures, the GFRP composite is impregnated with a special vinyl ester resin. This resin corresponds to group 5 in accordance with DIN 18 820 T1 and type 1310 in accordance with DIN 160946 T2. Both resins are compliant with the international standard DIN EN 13121. The polyester resin is categorised as group 4, the vinyl ester resin as group 7a.",{"_uid":638,"name":639,"component":607,"description":640},"0a7b59d8-cb26-4090-9113-c92b6e6c6dd5","Impregnation","Impregnation is the impregnation of solid or porous materials with a liquid or viscous substance. The impregnation for the Brandenburger Liner is the combination of polyester or vinyl ester resins with the ECR glass fibre composite.",{"_uid":642,"name":643,"component":607,"description":644},"ce05150f-9f91-4f93-a264-0db4026de6d8","Sewer rehabilitation","The term sewer rehabilitation denotes a number of methods for rehabilitating wastewater pipelines. The purpose is to seal pipes against ingress of groundwater and egress of wastewater, to restore structural stability, and/or to stop corrosion. Trenchless sewer rehabilitation, or no-dig methods, describes methods that do not require opening the surface to be opened along length of the sewer. This reduces construction time, cost, and environmental impact. The methods can be used for sewers with nominal widths from DN 100 to DN 5000 (standard diameter in mm). Trenchless sewer rehabilitation accounts for about 50% of the sewer rehabilitation market. Trenchless sewer rehabilitation is divided into three process categories: Repair, renovation, and renewal. The pipe lining method is a renovation process. Renovation methods are used for locally constrained, repetitive, and extensive damage. The process can be used to work a single conduit (sewer section between shafts) or on several adjacent conduits in one go. Processes requiring workers to enter the sewer are used only in larger dimensions (> DN 1000 mm). Pipe lining and relining methods are the best established renovation processes, with a market share of about 30% in trenchless sewer rehabilitation. Again, two basic processes can be distinguished, heat-curing and UV-curing. In the heat-curing process, resin-soaked felt hoses are inverted (rolled) into the sewer using steam or hot water. The chemical curing reaction of the resin is initiated by the heat of the water or steam. In UV processes, glass-fibre hoses are pulled into the sewer and inflated with compressed air. The chemical reaction is initiated by UV light emitted by a robot moving along the length of the liner on the inside. UV-curing processes account for about 55% of the market in pipe lining. Our process is the leading technology for trenchless sewer rehabilitation for diameters from DN 150 to DN 1000. The Brandenburger winding process exceeds all requirements and sets the gold standard for mechanical stability, chemical resistance, and leak tightness. With a share of about 35%, Brandenburger is the market leader for UV-curing processes. However, there is still plenty of room for development.",{"_uid":646,"name":647,"component":607,"description":648},"2cf74f7c-f2ad-462f-a6ec-8fd04f921253","Impact strength","The impact strength describes is the ability of a material to absorb shocks and impacts without breaking.",{"_uid":650,"name":651,"component":607,"description":652},"d51bcb6d-7025-4c7e-b77a-a343b6ebd607","Corrosion resistance","The corrosion resistance describes the durability of a material against decay (Lat. corrodere = corrode, erode, gnaw away); it is measured for liners by their resistance against decomposition due to chemical or aggressive substances in the wastewater and the sewer atmosphere.",{"_uid":654,"name":655,"component":607,"description":656},"f15dfa33-8adc-4ee8-b80e-4ff6239ee0d7","Short-term bending stress","Just as with the determining of the modulus of elasticity, the “three-point bending test” for determining the short-term bending stress in accordance with ISO 178/ ISO 11296-4 is applied and indicates how the material retains its dimensional strength under various external influences.",{"_uid":658,"name":659,"component":607,"description":660},"79a52dc2-a8e3-4b46-85dc-4524df5350f3","Liner installation","A hose carrier soaked with a reactive resin is drawn into the sewer and pressed against the sewer wall through inflation with compressed air. A chemical reaction in the resin turns the hose into a stable, load-bearing inner lining. The technology is completely trenchless and requires no digging whatsoever. The flexible liner hoses are typically applied using existing inspection shafts in the sewer. The special characteristics that set the Brandenburger liner system apart from other pipe lining types are: • Use of seamlessly wound liners made of glass fibre laminate webs\n• Unique saturation of the raw materials before the production of the pipe liner with UV-reactive UP resin (possibly with addition of peroxides for the variation “hybrid curing” for larger wall thicknesses over 10 millimetres)\n• Drawing in the liner on a protective foil and form-fitting expansion using compressed air\n• Curing of the liner using precisely dosed UV exposure (“BLUETEC® technology”).",{"_uid":662,"name":663,"component":607,"description":664},"fd5657af-d1f3-438d-bf4a-27c4b6f1d937","Reversible heat pump","Reversible heat pumps are employed not only for heating, but also for cooling buildings. The Brandenburger Heatliner is an example of how the residual heat of the wastewater is exploited for heating buildings or for warming up water and for withdrawing warmth from room air and to dissipate it to the wastewater via the heat exchanger surface in the summer.",{"_uid":666,"name":667,"component":607,"description":668},"95024f26-58de-4eae-a1ad-7043b18fbb08","Flushing test","In the flushing test, a liner’s flushing resistance is tested under defined conditions. Flushing resistance is required because sewers are flushed regularly for cleaning and removal of obstructions. A hose with a flushing nozzle is pulled through the lined pipe. Dirt is flushed from the sewer with high-pressure water. In the past, the “Hamburg model flushing test” was used. In this test, the liner was subjected to 30 flush cycles from a flushing head with eight 2.6 mm nozzles and a water pressure of 120 bar. If the liner was undamaged afterwards, then the test had been passed. Since about 2 years ago, the test is conducted according to DIN 19523. This test can be done in the laboratory. Its principal difference from the Hamburg-model flushing test is that not the pressure but the jet energy density is the critical parameter. The liner is exposed to a jet energy density of 330 W/mm², which corresponds to a pressure of 90 bar at a flow of 280 l/minute. If the liner shows no signs of damage after 60 cycles, then the test has been passed and the liner can be installed. In addition to the Hamburg-model flushing test and the test according to DIN 19523, there are other national tests like the Quik flushing test in Switzerland. In addition to high pressure and numerous flushing cycles, this test also adds gravel to the flushing water to increase the abrasive effect.",{"_uid":670,"name":671,"component":607,"description":672},"687dc8ff-93bc-4ab1-b934-0b1aa0043166","Guide pulley set","The guide pulley set is an installation aid to ensure the reliable and careful drawing in of the liner through the shaft and past several angles into the conduit to be rehabilitated.",{"_uid":674,"name":675,"component":607,"description":676},"a136390e-f8fe-4158-bac5-b44fb817611d","UV light-curing technology","UV light-curing technology is generally understood as a process in which a chemical curing process is triggered using UV radiation. The patented Brandenburger pipe lining process is based on this UV light-curing technology. In order to cure the liner, a UV light chain meeting the specific requirements is pulled through the liner which is already installed in the old pipe and erected by pressurised air. The resin contained in the liner material reacts to the UV radiation and cures completely within the briefest time.",{"_uid":678,"name":679,"component":607,"description":680},"c14831e9-e2cb-465e-ad97-cda04feb8bc9","Heat exchanger surface","A heat exchanger surface can find application in the base area of the Brandenburger Heatliner. This adsorbs the residual temperature of the wastewater and utilises it for the heat pump.",{"_uid":682,"name":683,"component":607,"description":684},"5161d4ff-f855-4375-a277-7da43a95e7ba","Wrapping technology","The wrapping technology describes the unique patented production mode of the Brandenburger Liner. The previously impregnated glass fibre composite is wound around a transparent inner foil at a defined speed and appropriate winding angle. State-of-the-art mechanical engineering and quality standards ensure that the liners retain their dimensional strength and also feature an excellent durability over many years.","sb-page-glossary",[687],{"_uid":688,"image":689,"component":691,"hide_menu":22,"pagetitle":189,"headline_html":38},"9e3bdde6-54be-478e-9e6d-7a31985fdf8a",{"id":400,"alt":400,"name":18,"focus":400,"title":400,"source":400,"filename":18,"copyright":400,"fieldtype":20,"meta_data":690},{},"sb-page-intro",20,[],567140342,"e0bc69b3-69aa-4b46-8d7d-b4c7df50c8a6","2025-03-04T09:25:43.609Z",[],[699,702],{"path":700,"name":701,"lang":411,"published":38},"liner/infocentre/glossaire","Glossaire",{"path":703,"name":231,"lang":406,"published":38},"liner/infocenter/glossary",[],[],{"age":444,"cache-control":445,"connection":446,"content-encoding":447,"content-type":448,"date":449,"etag":707,"referrer-policy":451,"sb-be-version":452,"server":453,"transfer-encoding":454,"vary":455,"via":708,"x-amz-cf-id":709,"x-amz-cf-pop":458,"x-cache":459,"x-content-type-options":460,"x-frame-options":461,"x-permitted-cross-domain-policies":462,"x-request-id":710,"x-runtime":711,"x-xss-protection":465},"W/\"a8f34db9b7764e448065525ae4d95b24\"","1.1 bc75f10f1201e895c01d2435d88b6274.cloudfront.net (CloudFront)","MQkGoQT7lDG42XUQxaJoep1VoRV1oncHPLaR1-TDZPgKEN7FskMNFQ==","5283060b-c8c2-4f3f-9d6e-e36fc89e12d6","0.133874",{"data":713,"headers":1452},{"story":714,"cv":413,"rels":1449,"links":1450},{"name":244,"created_at":715,"published_at":716,"updated_at":717,"id":250,"uuid":247,"content":718,"slug":251,"full_slug":253,"sort_by_date":400,"position":1439,"tag_list":1440,"is_startpage":22,"parent_id":694,"meta_data":400,"group_id":1441,"first_published_at":696,"release_id":400,"lang":406,"path":400,"alternates":1442,"default_full_slug":252,"translated_slugs":1443},"2024-11-29T09:31:21.264Z","2025-08-19T12:15:00.067Z","2025-08-19T12:15:00.118Z",{"seo":719,"_uid":723,"body":724,"component":1394,"intro_banner":1395,"sidebar_width":38,"sidebar_content":1403},{"_uid":720,"title":721,"plugin":600,"og_image":18,"og_title":18,"description":722,"twitter_image":18,"twitter_title":18,"og_description":18,"twitter_description":18},"d9f17616-44eb-4413-89bb-5366703dae3b","FAQ - Liner Technology & Application Questions","Detailed answers about resin systems, installation, certifications and technical specifications of our liners.","e45cf854-ac5c-4d99-8490-4925ab422e6c",[725],{"_uid":726,"hide":22,"headline":727,"component":734,"margin_top":18,"padding_top":735,"small_title":38,"margin_bottom":18,"collapse_first":38,"padding_bottom":736,"accordion_items":737,"background_color":18},"65098f19-0a56-4269-9f11-9e17a0d18ac4",[728],{"_uid":729,"element":730,"headline":244,"alignment":731,"component":732,"hide_line":22,"element_style":733},"ca4ff024-24f5-4234-8787-9227cfbbabc3","h1","center","sb-headline","h2","sb-accordion","medium","large",[738,779,817,852,879,897,942,977,1008,1036,1096,1110,1152,1169,1195,1220,1250,1267,1285,1303,1320,1363,1380],{"_uid":739,"title":740,"content":741,"component":778},"65ad0d2d-0ef8-42ce-b0ba-7e1b45af98b2","1. What resin systems are used for liner impregnation?",[742],{"_uid":743,"hide":22,"text":744,"button":774,"headline":775,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"fd91f0c4-b438-4d6b-89dc-9b49d5064592",{"type":745,"content":746},"doc",[747,760,770],{"type":748,"content":749},"paragraph",[750,753],{"text":751,"type":752},"Polyester and vinyl ester ","text",{"text":754,"type":752,"marks":755},"resins",[756],{"type":757,"attrs":758},"textStyle",{"color":759},"inherit",{"type":748,"content":761},[762,764,768],{"text":763,"type":752},"The light-curing synthetic ",{"text":754,"type":752,"marks":765},[766],{"type":757,"attrs":767},{"color":759},{"text":769,"type":752}," used are made of unsaturated polyester (UP) or vinyl ester resin (VE) blended with a special UV light initiator that triggers the curing process.",{"type":748,"content":771},[772],{"text":773,"type":752},"For liners with a wall thickness of more than 17.5 mm, the light-curing resin is mixed with peroxide to ensure proper curing on the entire length of the liner by means of a combination of UV light and reaction heat.",[],[],"sb-text-section","white","sb-accordion-item",{"_uid":780,"title":781,"content":782,"component":778},"c0fbbc60-7b9b-46db-b0c3-d39a34ba3879","2. Which liner diameters can you make?",[783],{"_uid":784,"hide":22,"text":785,"button":815,"headline":816,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"d3745399-6b32-4516-833d-4e3ac61d9265",{"type":745,"content":786},[787,803,807,811],{"type":788,"content":789},"bullet_list",[790,797],{"type":791,"content":792},"list_item",[793],{"type":748,"content":794},[795],{"text":796,"type":752},"Circular profiles DN 150 – DN 1600",{"type":791,"content":798},[799],{"type":748,"content":800},[801],{"text":802,"type":752},"Oval profiles 200/300 – 1200/1800",{"type":748,"content":804},[805],{"text":806,"type":752}," ",{"type":748,"content":808},[809],{"text":810,"type":752},"A Brandenburger Liner BB2.5 can be used to rehabilitate decrept sewers of all materials (such as concrete, sandstone, fibre cement) with a circular internal diameter of 150 mm to 1600 mm. More shapes (oval, arch, and special profiles) are feasible with an equivalent circular diameter fitting the given size.",{"type":748,"content":812},[813],{"text":814,"type":752},"If the site conditions are rather challenging you might want to discuss matters with our application engineering team before starting the actual work.",[],[],{"_uid":818,"title":819,"content":820,"component":778},"f1007f2f-8391-4a36-9065-99e68eb9418c","3. What is the feasible wall thickness for a liner?",[821],{"_uid":822,"hide":22,"text":823,"button":850,"headline":851,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"db676b81-dbe9-415a-90cc-ed2ada54d2e0",{"type":745,"content":824},[825,839,842,846],{"type":788,"content":826},[827,833],{"type":791,"content":828},[829],{"type":748,"content":830},[831],{"text":832,"type":752},"3 mm to 17.5 mm",{"type":791,"content":834},[835],{"type":748,"content":836},[837],{"text":838,"type":752},"18.2 mm to 25.2 mm with combination curing",{"type":748,"content":840},[841],{"text":806,"type":752},{"type":748,"content":843},[844],{"text":845,"type":752},"Our liners are made by winding pre-impregnated glass fibre composite laminates. Thanks to our patented Brandenburger winding process we are able to produce liners with a wall thickness of 3.5 mm to 25.2 mm, in 0.7 mm steps. Liners of more than 17.5 mm wall thickness are made using peroxide as an additive (depending on the diameter).",{"type":748,"content":847},[848],{"text":849,"type":752},"The stated wall thicknesses are fully structural and feature an additional + 0.1 mm wear protection layer.",[],[],{"_uid":853,"title":854,"content":855,"component":778},"4e138d57-47e5-4869-ad2d-f4992b266161","4. What length of liner is feasible?",[856],{"_uid":857,"hide":22,"text":858,"button":877,"headline":878,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"ea6743ec-4eda-4928-95f5-d963604e3bd2",{"type":745,"content":859},[860,864],{"type":748,"content":861},[862],{"text":863,"type":752},"Up to 300 metres, depending on the liner diameter",{"type":748,"content":865},[866,868,875],{"text":867,"type":752},"The maximum length of a Brandenburger Liner BB",{"text":869,"type":752,"marks":870},"2.5",[871,873],{"type":872},"italic",{"type":874},"superscript",{"text":876,"type":752}," is determined by the maximum length that can be put in a crate and drawn with a winch, or by the cable length of the UV unit.",[],[],{"_uid":880,"title":881,"content":882,"component":778},"3deacf89-97d0-4530-874c-1bd41f31f9d1","5. How is the liner packed?",[883],{"_uid":884,"hide":22,"text":885,"button":895,"headline":896,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"fe8d0671-b87c-4a9d-8443-03b18db50c7a",{"type":745,"content":886},[887],{"type":748,"content":888},[889],{"text":890,"type":752,"marks":891},"Upon coming off the conveyor belt, each Brandenburger Liner BB2.5 is folded (“piled”) in a customized wooden in-house made crate and taken to its destination.",[892],{"type":757,"attrs":893},{"color":894},"#000000",[],[],{"_uid":898,"title":899,"content":900,"component":778},"94d2f4b3-1e5a-4aca-99ec-3f0a9fd2972b","6. How much time does it take to deliver after receiving an order?",[901],{"_uid":902,"hide":22,"text":903,"button":940,"headline":941,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"d94ba570-dbf4-4a56-a082-55e6c596c58d",{"type":745,"content":904},[905,912,916,919,925,929,932,936],{"type":748,"content":906},[907],{"text":908,"type":752,"marks":909},"GERMANY AND EUROPE:",[910],{"type":911},"bold",{"type":748,"content":913},[914],{"text":915,"type":752},"For Germany and Europe, the delivery time is approx. 10 working days from receiving a proper purchase order.",{"type":748,"content":917},[918],{"text":806,"type":752},{"type":748,"content":920},[921],{"text":922,"type":752,"marks":923},"WORLDWIDE:",[924],{"type":911},{"type":748,"content":926},[927],{"text":928,"type":752},"Overseas shipment may take between 6 and 8 weeks from receiving a proper purchase order.",{"type":748,"content":930},[931],{"text":806,"type":752},{"type":748,"content":933},[934],{"text":935,"type":752},"Delivery times may vary depending on work load.",{"type":748,"content":937},[938],{"text":939,"type":752},"Our Order Processing Centre staff will be happy to assist you with any queries you might have.",[],[],{"_uid":943,"title":944,"content":945,"component":778},"00b31a18-2ec2-484c-b3db-bd2be30ea98b","7. What are the best storage conditions for a liner and how long is the service life?",[946],{"_uid":947,"hide":22,"text":948,"button":975,"headline":976,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"098f3f05-f0b1-4bae-86c7-2554118ae740",{"type":745,"content":949},[950,954,958,962,965,971],{"type":748,"content":951},[952],{"text":953,"type":752},"The liner should be stored at temperatures between +5°C and +30°C in a protected place. The recommended maximum storage period is 26 weeks from the date of manufacture.",{"type":748,"content":955},[956],{"text":957,"type":752},"The date of expiry is noted in the accompanying documents attached to the liner crate.",{"type":748,"content":959},[960],{"text":961,"type":752},"In wintery weather conditions (with temperatures between +5°C and -5 °C) the liner may be transported and installed when the following requirements are met:",{"type":748,"content":963},[964],{"text":806,"type":752},{"type":748,"content":966},[967],{"text":968,"type":752,"marks":969},"Liner storage:",[970],{"type":911},{"type":748,"content":972},[973],{"text":974,"type":752},"+5°C to +10°C, with no more than two hours between transport and installation of the liner",[],[],{"_uid":978,"title":979,"content":980,"component":778},"ae31fc08-f9d1-411b-9183-94806da04ab6","8. Which resin system is best for installation?",[981],{"_uid":982,"hide":22,"text":983,"button":1006,"headline":1007,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"fca575fa-2053-4ecd-aa54-e20b981f63a4",{"type":745,"content":984},[985,999,1002],{"type":788,"content":986},[987,993],{"type":791,"content":988},[989],{"type":748,"content":990},[991],{"text":992,"type":752},"polyester resin (general application, municipal wastewater)",{"type":791,"content":994},[995],{"type":748,"content":996},[997],{"text":998,"type":752},"vinyl ester resin (industrial application, chemical wastewater)",{"type":748,"content":1000},[1001],{"text":806,"type":752},{"type":748,"content":1003},[1004],{"text":1005,"type":752},"Analysing the wastewater from the sewers that are due for renovation prior to starting the actual work provides a basis to calculate the resistance of the liner against chemical irritants.",[],[],{"_uid":1009,"title":1010,"content":1011,"component":778},"c939d82f-c926-4559-a2e1-30b28f25b05e","9. Can I install a liner into a shaft with bends?",[1012],{"_uid":1013,"hide":22,"text":1014,"button":1034,"headline":1035,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"e88d2947-5508-4c36-a32d-4afa00b05d87",{"type":745,"content":1015},[1016,1026,1030],{"type":748,"content":1017},[1018,1022,1024],{"text":1019,"type":752,"marks":1020},"Adaptation to unusual orientation and diameter:",[1021],{"type":911},{"type":1023},"hard_break",{"text":1025,"type":752},"The Brandenburger Liner BB2.5 can compensate sewer bends up to 15° and fluctuations in diameter.",{"type":748,"content":1027},[1028],{"text":1029,"type":752},"The liner is slightly undersized so it can adapt to dimensional changes of 5% of the internal diameter, depending on local conditions.",{"type":748,"content":1031},[1032],{"text":1033,"type":752},"On rare occasions, the material in a bend may develop small wrinkles between inner and outer radiuses.",[],[],{"_uid":1037,"title":1038,"content":1039,"component":778},"60e0fc3b-c386-4a4c-9270-bb358c55a818","10. Do the liners have a slide foil integrated?",[1040],{"_uid":1041,"hide":22,"text":1042,"button":1094,"headline":1095,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"2be411ec-1caa-4398-b5f3-7f8cf221be25",{"type":745,"content":1043},[1044,1048,1051,1083,1086,1090],{"type":748,"content":1045},[1046],{"text":1047,"type":752},"The Brandenburger Liner BB2.5 is made in three versions:",{"type":748,"content":1049},[1050],{"text":806,"type":752},{"type":788,"content":1052},[1053,1059,1065,1071,1077],{"type":791,"content":1054},[1055],{"type":748,"content":1056},[1057],{"text":1058,"type":752},"Interior protective foil/calibration hose: Polyamide (PA) and polyethylene (PE), styrene-proof, foil hose is removed after curing is completed.",{"type":791,"content":1060},[1061],{"type":748,"content":1062},[1063],{"text":1064,"type":752},"Version 1: Grey external foil, UV light protection, laterally welded on the outside over the entire circumference, made of a multi-layer PE/PE/PA/PE structure.",{"type":791,"content":1066},[1067],{"type":748,"content":1068},[1069],{"text":1070,"type":752},"Version 2: Same as version 1 but with a second, white, external foil. This foils serves as an additional external protection (AEP) against mechanical damage during installation.",{"type":791,"content":1072},[1073],{"type":748,"content":1074},[1075],{"text":1076,"type":752},"The upper third of the liner is coated with an extra adhesive foil (outer seam).",{"type":791,"content":1078},[1079],{"type":748,"content":1080},[1081],{"text":1082,"type":752},"Version 3: Same as version 1 but a full preliner is recommended in excess groundwater conditions. In this case, version 2 does not apply.",{"type":748,"content":1084},[1085],{"text":806,"type":752},{"type":748,"content":1087},[1088],{"text":1089,"type":752},"From DN 600 the Brandenburger Liner BB2.5 is always supplied in version 2, i. e. with additional external protection.",{"type":748,"content":1091},[1092],{"text":1093,"type":752},"For smaller diameters, we can provide version 2 (with a 2nd external foil) as an option with additional charge.",[],[],{"_uid":1097,"title":1098,"content":1099,"component":778},"242f03e6-c38a-4c9f-bbde-90f2dbdcde69","11. Are the starting, end, and intermediate shaft bandages obligatory?",[1100],{"_uid":1101,"hide":22,"text":1102,"button":1108,"headline":1109,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"886e00fe-b796-4afe-bae8-2bdd38578c9e",{"type":745,"content":1103},[1104],{"type":748,"content":1105},[1106],{"text":1107,"type":752},"In all intermediate shafts, the liner must be protected against overstretching, as this could cause the liner to burst. This can be done, e.g., by way of a support cap. Moreover, using these support caps allows for taking representative samples.",[],[],{"_uid":1111,"title":1112,"content":1113,"component":778},"2fd214a0-ffb4-41a7-a673-b02b76d30bb5","12. What certification does the Brandenburger Liner BB2.5 have?",[1114],{"_uid":1115,"hide":22,"text":1116,"button":1150,"headline":1151,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"e8512747-9e33-4d35-9141-ff78e7098084",{"type":745,"content":1117},[1118,1124],{"type":748,"content":1119},[1120],{"text":1121,"type":752,"marks":1122},"The certificates are listed below.",[1123],{"type":911},{"type":788,"content":1125},[1126,1132,1138,1144],{"type":791,"content":1127},[1128],{"type":748,"content":1129},[1130],{"text":1131,"type":752},"DIBt (Deutsches Institut für Bautechnik – German Institute for Construction Technology), Germany",{"type":791,"content":1133},[1134],{"type":748,"content":1135},[1136],{"text":1137,"type":752},"CSTB (Centre scientifique et technique du bâtiment – Scientific and Technical Centre for Building), France",{"type":791,"content":1139},[1140],{"type":748,"content":1141},[1142],{"text":1143,"type":752},"QUIK of Verband Schweizer Abwasser (Swiss water association), Switzerland",{"type":791,"content":1145},[1146],{"type":748,"content":1147},[1148],{"text":1149,"type":752},"WRc (WRc Approved), UK",[],[],{"_uid":1153,"title":1154,"content":1155,"component":778},"836f043a-e6b2-4305-94a8-399eb96344a8","13. Are dimensional steps possible with the Brandenburger Liner BB2.5?",[1156],{"_uid":1157,"hide":22,"text":1158,"button":1167,"headline":1168,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"a3ace4f5-c23b-47da-bafe-fa5762840564",{"type":745,"content":1159},[1160],{"type":748,"content":1161},[1162],{"text":1163,"type":752,"marks":1164},"Yes. Please get in touch with our application engineering team to discuss the matter beforehand.",[1165],{"type":757,"attrs":1166},{"color":894},[],[],{"_uid":1170,"title":1171,"content":1172,"component":778},"e00a89f6-4c80-4a74-8658-f5ce8826cd42","14. Is the Brandenburger Liner certified for potable water?",[1173],{"_uid":1174,"hide":22,"text":1175,"button":1193,"headline":1194,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"2afc96b0-28f8-448d-8327-9b739f97b70b",{"type":745,"content":1176},[1177],{"type":748,"content":1178},[1179,1184,1188],{"text":1180,"type":752,"marks":1181},"No, our Brandenburger Liner BB",[1182],{"type":757,"attrs":1183},{"color":894},{"text":869,"type":752,"marks":1185},[1186,1187],{"type":872},{"type":874},{"text":1189,"type":752,"marks":1190}," is currently not potable water certified.",[1191],{"type":757,"attrs":1192},{"color":894},[],[],{"_uid":1196,"title":1197,"content":1198,"component":778},"ada34eaa-71c5-4c7a-9b5c-f2af62eb8a49","15. How is the Brandenburger Liner BB2.5 installed?",[1199],{"_uid":1200,"hide":22,"text":1201,"button":1218,"headline":1219,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"f97740ca-687a-43d6-9057-bd07dbe23718",{"type":745,"content":1202},[1203,1209,1214],{"type":748,"content":1204},[1205],{"text":1206,"type":752,"marks":1207},"Sewer installation",[1208],{"type":911},{"type":748,"content":1210},[1211,1212],{"type":1023},{"text":1213,"type":752},"The liner is inserted into the sewer through the inspection shafts and drawn through the sewer by means of a winch. (see fig. 2).",{"type":748,"content":1215},[1216],{"text":1217,"type":752},"Observe the maximum drawing forces (see table) when installing the liner",[],[],{"_uid":1221,"title":1222,"content":1223,"component":778},"76056dfe-ccb0-47a8-a0a7-2d5b86a26e29","16. How is the Brandenburger Liner BB2.5 cured?",[1224],{"_uid":1225,"hide":22,"text":1226,"button":1248,"headline":1249,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"f4044575-83cd-41f0-ade5-fb36e6bf6395",{"type":745,"content":1227},[1228,1232,1236,1240,1244],{"type":748,"content":1229},[1230],{"text":1231,"type":752},"According to our specifications, choose the appropriate power and number of UV lamps and the light chain speed relative to liner diameter and wall thickness.",{"type":748,"content":1233},[1234],{"text":1235,"type":752},"Our sales and application engineering departments are happy to provide you with the appropriate curing tables for your UV unit or light chain used.",{"type":748,"content":1237},[1238],{"text":1239,"type":752},"The light chain is inserted into the pipe liner (with the UV lamps turned off) and drawn through the entire length. The light chain is equipped with a camera. This makes it possible to check the proper installation of the liner prior to curing.",{"type":748,"content":1241},[1242],{"text":1243,"type":752},"Then the UV lamps are lit and the light chain is drawn back to the UV unit. The drawing speed depends on the number and the radiation intensity of the UV lamps and on the liner dimensions. (see fig. 3)",{"type":748,"content":1245},[1246],{"text":1247,"type":752},"After curing, the liner ends are cut off and the inner foil is removed",[],[],{"_uid":1251,"title":1252,"content":1253,"component":778},"39903e07-fad6-4f39-891f-f5910d0d40c2","17. Can the Brandenburger Liner BB2.5 be cured by means of water or steam?",[1254],{"_uid":1255,"hide":22,"text":1256,"button":1265,"headline":1266,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"c3386491-7ca8-4cbd-ab00-1733aa317c33",{"type":745,"content":1257},[1258],{"type":748,"content":1259},[1260],{"text":1261,"type":752,"marks":1262},"No, the light-curing synthetic resins used are made of unsaturated polyester (UP) or vinyl ester resin (VE) blended with a special UV light initiator that triggers the curing process. This reaction can only be started by UV light.",[1263],{"type":757,"attrs":1264},{"color":894},[],[],{"_uid":1268,"title":1269,"content":1270,"component":778},"93e75b88-be8c-4965-977c-55d500a790de","18. Does the Brandenburger Liner BB2.5 have an internal coating?",[1271],{"_uid":1272,"hide":22,"text":1273,"button":1283,"headline":1284,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"197baa7d-f777-4f2b-bfb2-55fb71c6eb74",{"type":745,"content":1274},[1275,1279],{"type":748,"content":1276},[1277],{"text":1278,"type":752},"No, after curing the liner ends are cut off and the inner foil is removed completely.",{"type":748,"content":1280},[1281],{"text":1282,"type":752},"The liner surface is protected by a high-resin inner layer, which has been tested and confirmed by DIBt certification.",[],[],{"_uid":1286,"title":1287,"content":1288,"component":778},"c834d4e4-b3e6-4dce-8919-2dd58285efe0","19. How are the liner ends treated after the liner is cut to length?",[1289],{"_uid":1290,"hide":22,"text":1291,"button":1301,"headline":1302,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"79f6a299-1984-4f68-a645-58a863d52cf9",{"type":745,"content":1292},[1293,1297],{"type":748,"content":1294},[1295],{"text":1296,"type":752},"The pipe liner ends and the half-shells in the intermediate shafts are infiltration-proof sealed with suitable methods. A TV acceptance inspection is typically performed upon completion.",{"type":748,"content":1298},[1299],{"text":1300,"type":752},"Different methods are possible for mortar on the basis of epoxy resin, or metal sleeves.",[],[],{"_uid":1304,"title":1305,"content":1306,"component":778},"f518ee83-25ad-405a-8a06-9945d704251c","20. Can I open the connections after the liner is cured?",[1307],{"_uid":1308,"hide":22,"text":1309,"button":1318,"headline":1319,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"cb00263b-0eaf-4dd4-be88-c2d52cec00b9",{"type":745,"content":1310},[1311],{"type":748,"content":1312},[1313],{"text":1314,"type":752,"marks":1315},"Yes, you can open the inlets directly after curing. Before opening the inlets, perform a leakage test.",[1316],{"type":757,"attrs":1317},{"color":894},[],[],{"_uid":1321,"title":1322,"content":1323,"component":778},"f34f2bb5-3d65-472a-844e-310973ff55d6","21. How do I have to carry out the mechanical measurements to determine the wall thickness?",[1324],{"_uid":1325,"hide":22,"text":1326,"button":1361,"headline":1362,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"77370b91-8925-4b9d-9423-10635ce35b32",{"type":745,"content":1327},[1328],{"type":788,"content":1329},[1330,1343,1355],{"type":791,"content":1331},[1332],{"type":748,"content":1333},[1334,1336,1341],{"text":1335,"type":752},"3R2014 (TSM N° 10-2014) Static calculations for ",{"text":1337,"type":752,"marks":1338},"sewer rehabilitation",[1339],{"type":757,"attrs":1340},{"color":759},{"text":1342,"type":752}," with liner method and installation. – Completion of the Fascicule N° 70 worksheet (revised issue 05/2012) – Technical data sheet",{"type":791,"content":1344},[1345],{"type":748,"content":1346},[1347,1349,1353],{"text":1348,"type":752},"ATV-M 127 2 (January 2000) Static calculations for ",{"text":1337,"type":752,"marks":1350},[1351],{"type":757,"attrs":1352},{"color":759},{"text":1354,"type":752}," with liner method and installation. – Completion of the ATV-A 127 worksheet (revised issue 07/2010) – Technical data sheet",{"type":791,"content":1356},[1357],{"type":748,"content":1358},[1359],{"text":1360,"type":752},"DWA M 143-2 (June 2015) This worksheet applies for static calculations of liners and installation methods with any diameter. Rehabilitation methods are definded acc. to DIN EN752 – Drainage systems outside of buildings.",[],[],{"_uid":1364,"title":1365,"content":1366,"component":778},"60ba0ad7-8126-49e2-86d3-815387fcd444","22. Is the liner tested for its abrasion resistance?",[1367],{"_uid":1368,"hide":22,"text":1369,"button":1378,"headline":1379,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"512fca8d-6f5b-425e-a17a-a97026e9be5e",{"type":745,"content":1370},[1371],{"type":748,"content":1372},[1373],{"text":1374,"type":752,"marks":1375},"Yes, this test is done acc. to DIN EN 295-3 (Darmstadt abrasion resistance test) showing an abrasion depth of 0.07 after 100,000 stress reversals.",[1376],{"type":757,"attrs":1377},{"color":894},[],[],{"_uid":1381,"title":1382,"content":1383,"component":778},"df79c455-22ff-49c8-b792-79d214d566c3","23. Is the liner tested for its jetting resistance?",[1384],{"_uid":1385,"hide":22,"text":1386,"button":1392,"headline":1393,"two_cols":22,"alignment":18,"component":776,"margin_top":18,"padding_top":18,"margin_bottom":18,"padding_bottom":18,"background_color":777},"cf42d7fb-140b-4395-a18c-6c86bae4db03",{"type":745,"content":1387},[1388],{"type":748,"content":1389},[1390],{"text":1391,"type":752},"Yes, this test is done acc. to DIN 19523.",[],[],"sb-page",[1396],{"_uid":1397,"image":1398,"component":691,"hide_menu":22,"pagetitle":189,"headline_html":38},"e48e8f06-2e08-44ad-b6d2-2225bcd7d989",{"id":1399,"alt":1400,"name":18,"focus":18,"title":18,"source":18,"filename":1401,"copyright":18,"fieldtype":20,"meta_data":1402,"is_external_url":22},21505847,"FAQ Banner - Brandenburger Liner","https://a.storyblok.com/f/309317/1915x400/3b54bc2192/faq-banner.jpg",{"alt":1400,"title":18,"source":18,"copyright":18},[1404,1421,1430],{"_uid":1405,"hide":22,"button":1406,"headline":1414,"component":1417,"margin_top":18,"member_card":1418,"padding_top":735,"accent_color":1419,"remove_image":38,"margin_bottom":18,"padding_bottom":1420,"background_color":18},"300a7f76-7085-4578-95a2-0bbc9ea656df",[1407],{"_uid":1408,"icon":18,"link":1409,"color":1411,"label":297,"variant":1412,"alignment":18,"component":1413},"35330174-0308-4682-bd78-b299d43c6b4f",{"id":318,"url":18,"linktype":35,"fieldtype":36,"cached_url":319,"prep":38,"story":1410},{"name":321,"id":322,"uuid":318,"slug":323,"url":324,"translated_name":315,"full_slug":325,"_stopResolving":38},"primary","solid","sb-button",[1415],{"_uid":1416,"element":733,"headline":297,"alignment":731,"component":732,"hide_line":22,"element_style":733},"86247ac8-c2d3-4f58-8f55-634d23019632","sb-member-card","fba0d9c2-b6c4-4760-a029-f55caf288f7b","green","small",{"_uid":1422,"hide":22,"button":1423,"headline":1428,"component":1417,"margin_top":18,"member_card":1429,"padding_top":18,"accent_color":1419,"remove_image":38,"margin_bottom":18,"padding_bottom":735,"background_color":18},"9723cfce-9400-460e-92b5-185263aee6d2",[1424],{"_uid":1425,"icon":18,"link":1426,"color":1411,"label":297,"variant":1412,"alignment":18,"component":1413},"5172f814-e2b5-4318-9062-db429d5c3454",{"id":318,"url":18,"linktype":35,"fieldtype":36,"cached_url":319,"prep":38,"story":1427},{"name":321,"id":322,"uuid":318,"slug":323,"url":324,"translated_name":315,"full_slug":325,"_stopResolving":38},[],"c216cbe8-f3bb-4b9b-9d82-04182726240e",{"_uid":1431,"hide":22,"button":1432,"headline":1437,"component":1417,"margin_top":18,"member_card":1438,"padding_top":18,"accent_color":1419,"remove_image":38,"margin_bottom":18,"padding_bottom":735,"background_color":18},"0ef736e5-c6ba-4d24-8ae4-70b61e1f15ae",[1433],{"_uid":1434,"icon":18,"link":1435,"color":1411,"label":297,"variant":1412,"alignment":18,"component":1413},"7dccee5b-b313-4a0f-a820-36cdb5266be9",{"id":318,"url":18,"linktype":35,"fieldtype":36,"cached_url":319,"prep":38,"story":1436},{"name":321,"id":322,"uuid":318,"slug":323,"url":324,"translated_name":315,"full_slug":325,"_stopResolving":38},[],"51cfb4e3-8ee2-469a-a744-12341f0d3607",30,[],"df0a273f-378c-4ee2-b96b-53374064f474",[],[1444,1446,1447],{"path":1445,"name":244,"lang":411,"published":38},"liner/infocentre/faq",{"path":252,"name":244,"lang":406,"published":38},{"lang":1448,"path":252,"name":244},"de",[],[1451],{"name":321,"id":322,"uuid":318,"slug":323,"url":324,"translated_name":315,"full_slug":325},{"cache-control":445,"connection":446,"content-encoding":447,"content-type":448,"date":578,"etag":1453,"referrer-policy":451,"sb-be-version":452,"server":453,"transfer-encoding":454,"vary":455,"via":456,"x-amz-cf-id":1454,"x-amz-cf-pop":458,"x-cache":585,"x-content-type-options":460,"x-frame-options":461,"x-permitted-cross-domain-policies":462,"x-request-id":1455,"x-runtime":1456,"x-xss-protection":465},"W/\"47df4c6a27c39db9fca0f1b7de8b4d67\"","noGZ3HGyWxr9E8C2BNFLO4ol0Cq5zYjTfva35ZDkVjBF1A-shTp-6w==","6cb98cc3-03f2-4d92-9952-194a309474cd","0.085592"]