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Buried pipeline construction for district heating, gas, drinking water and wastewater in the Dresden area

RLB Lange Logo

RLB Rohrleitungsbau Lange GmbH

Niedersedlitzer Str. 84, 01257 Dresden · GermanyNew on Amplifa

1994Founded
>90 employeesAs of 2014
HRB 10809, AG DresdenCommercial register

About us

RLB Rohrleitungsbau Lange GmbH is a Saxon construction company based in Dresden specializing in buried pipeline construction. The company builds and maintains pipe networks for central heat supply (district heating), renews drinking water distribution networks, upgrades gas networks, constructs wastewater pipelines and installs combined service connections – from small connections to large distribution lines, in all dimensions and pressure classes. Materials used are steel, PE (polyethylene) and cast iron; steel pipes are welded using the TIG process under construction site conditions as well as prefabricated in the company's own workshop. In addition, the company offers its own civil engineering department (pipe trench excavation, standard-compliant shoring, backfilling, transport of excavated and installed materials), industrial insulation with sheet metal cladding on district heating pipelines, TIG welding work and site management activities in pipeline and pipeline engineering. Main customers are municipal utilities and public suppliers in the Dresden area. More than 90 employees (as of 2014) work at the site at Niedersedlitzer Straße 84, which includes office and operational facilities and its own photovoltaic system.

Site
Dresden
Processes
Buried pipeline construction district heating (construction and maintenance of pipe networks for, Buried pipeline construction drinking water (renewal of distribution networks), Buried pipeline construction gas (upgrading of gas networks), Wastewater pipeline construction (construction of wastewater pipelines), Service connections (connection of end consumers to utility networks, combined), TIG welding (butt welds on pipes, steel pipes under construction site conditions and, Civil engineering (excavation and backfilling of pipe trenches and pits, standard-compliant, Industrial insulation (thermal insulation with sheet metal cladding on district heating pipelines,
Materials
Steel, PE (polyethylene), Cast iron
Certificates
DVGW membership
Founded
1994
Industries
Pipeline civil engineering, Energy and utility sector, District heating, Gas, Drinking water, Wastewater
  1. 01

    Civil engineering: excavation and backfilling of pipe trenches,

  2. 02

    Workshop prefabrication of assemblies and pipelines (steel, PE, cast iron)

  3. 03

    TIG welding of pipe joints (butt welds on steel pipes)

  4. 04

    Laying of buried pipelines (district heating, gas, drinking water, wastewater)

  5. 05

    Service connections to the utility networks

  6. 06

    Industrial insulation with sheet metal cladding on district heating pipelines

  7. 07

    Site management and project execution

Materials & Processes

St

Steel

Used for district heating and gas pipelines, welded using the TIG process under construction site conditions and in workshop prefabrication.

PE

PE (polyethylene)

Plastic pipes for drinking water, gas and service connection lines with corresponding joining techniques.

Guss

Cast iron

Material for pipelines in utility network construction, among other things for the renewal of distribution networks.

Sites

Dresden

DE

Headquarters with office and operational facilities, own photovoltaic system

Materials
Steel, PE, cast iron
  • Mobile excavators up to 18 t
  • Mini excavators up to 5.5 t
  • Small equipment
  • Trucks for inner-city construction site transports

Industries

Pipeline civil engineeringEnergy and utility sectorDistrict heatingGasDrinking waterWastewaterEnergy and utility sector (municipal utilities, public suppliers)

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Buried pipeline construction district heating (construction and maintenance of pipe networks forAssembly––––Steel, PE, Cast iron
Buried pipeline construction drinking water (renewal of distribution networks)Assembly––––Steel, PE, Cast iron
Buried pipeline construction gas (upgrading of gas networks)Assembly––––Steel, PE, Cast iron
Wastewater pipeline construction (construction of wastewater pipelines)Assembly–––––
Service connections (connection of end consumers to utility networks, combined)Assembly–––––
TIG welding (butt welds on pipes, steel pipes under construction site conditions andJoining––––Steel
Civil engineering (excavation and backfilling of pipe trenches and pits, standard-compliantEngineering–––––
Industrial insulation (thermal insulation with sheet metal cladding on district heating pipelines,Surface–––––
Site management / site management activities in pipeline and pipeline engineeringEngineering–––––

2 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Mobile excavator––up to 18 t–Dresden
Mini excavator––up to 5.5 t–Dresden

Additional services

District heating pipeline construction (construction and maintenance)Drinking water and distribution network constructionGas network upgradingWastewater pipeline constructionService connectionsOwn civil engineering departmentTIG welding work (steel pipes)Insulation work on district heating pipelinesConstruction machinery rental (according to register purpose)Apprenticeship training (civil engineering skilled workers, plant fitters)

Reference customers

Municipal utilities and public suppliers in the Dresden area

Quality

The work is carried out according to the technical rules of the DVGW (German Technical and Scientific Association for Gas and Water), of which the company is a member. Welders hold valid welder qualifications for butt welds on pipes of various dimensions.

EvidenceDresden
DVGW membership

History

  1. 1994

    Founded by Dietmar Lange with 8 employees in the field of district heating (commercial register entry 21.12.1994)

  2. 1997

    Establishment of an own civil engineering department to increase flexibility

  3. 2000

    Expansion of the district heating, drinking water, gas and electricity divisions in the private and commercial customer segment

  4. 2005

    Expansion and move to new business premises at Niedersedlitzer Str. 84; share capital €51,000

  5. 2007

    Commissioning of the photovoltaic system for renewable energy generation at the site

  6. 2014

    Enlargement of the individual trades and increase to more than 90 employees

  7. 2021

    Initiation of the generational change at Rohrleitungsbau Lange GmbH

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