Boiler Services

With roots dating back to 1883, NEM Balcke- Dürr’s Boiler Service proves to have extensive experience with different types of boilers. We offer services for both OEM and non-OEM boilers, including inspections, manufacturing, transport, and on-site works. The service is supported by professional Engineers for design, optimization, and assembly concepts. As a reliable partner, we support you with long-term framework agreements as well as short-term service projects with a highly qualified workforce.

Service Support

Engineering & Capabilities

✓ Inspection, root cause analysis, and consultation
✓ Boiler process optimization studies in regards to performance, life time extension, and fuel replacement
✓ Design and optimization of new heating surface and bundles
✓ Boiler overhaul, including firing technology
✓ Site works, including disassembly and installation

Boiler Services Portfolio

Pressure Parts – Bundles
Pressure Parts – Membrane walls
Cladding
Boiler Service and auxiliaries
Installation & Disassembly / Site Works

Pressure Parts – Bundles

Heat exchanger bundles for evaporation, superheating, and reheating of boiler steam. No matter if it’s a header-type design or a single harp design, we are able to exchange and improve any bundle type. 1:1 replacement or with additional protective equipment such as coating (Cladding), shells, or baffle walls.

OEM and non-OEM applications
Usage in various boiler areas (evaporator/superheater/reheater/economizer, etc.)
Single or divided bundles, header-tube or single harp design
Exchange via the roof, from the ground, via the boiler house side walls, or through the ash hopper from the ground up
Max. bundle specification: -100 t and 3.500 x 4.500 x 8.000 mm (W x H x L)

Boiler Services Product Pressure Parts Bundles NEM Energy

Pressure Parts – Membrane walls

Membrane wall panels (tube-fin-tube design) for evaporator heating surfaces with product specification and granted conformity according to original design or harmonized standard. Adjustment of the existing design by applying protective coating (cladding). A variety of specifications for material, layer, technique, etc. can be considered.

Tube-Fin-Tube design
Horizontal, vertical & diagonal alignment
Tube pitch up to 120 mm
Installation of single segments/panels
- Max. dimension of 1.000 mm x 6.500 mm per panel
Quality documentation
- NDT during the installation process by UT (Phased Array Method)
- MT & VT experience allowing reduction of X-ray windows and minimization of boiler downtimes

Boiler Services Product Pressure Parts Membrane Walls NEM Energy

Cladding

Protective Coating of membrane walls (single or double-sided possible), sole heat exchanger tubes and headers by weld overlay. Special Ni-based alloys will be welded manually or automatically onto the base material. Ensure a maximum of Fe-content in the overlap area of base material and coating. Thickness can be chosen individually from 1 to 2 mm.

Thermanit 625, 686
Workshop cladding with ≤ 3% Fe-content and 1-2 mm thickness
On-site repair cladding manually with ≤ 8% Fe-content and 2 mm thickness
On-site connection of cladded parts by InCla-Welding method (non-alloyed root layer– austenitic filler and cover layer)
Applicable for various parts (tubes, headers, membrane walls, fins)

Boiler Services Product Cladding NEM Energy

Boiler Service and auxiliaries

From single inspection up to preventive maintenance of boiler pressure parts, we offer a broad range of services.
Complementary solutions in regards to maintenance of high-pressure systems and auxiliaries are standard practices for us.

Extract from our service competencies

Pressure parts as tailor-made solutions or specific replacements
Inspection and exchange of safety valves & silencers
Maintenance of secondary & tertiary air circulation, as well as the NH3 injection system
Replacement or overhaul of headers, steam drums, or injection coolers

Boiler Services Product Boiler Service and auxiliaries NEM Energy

Installation & Disassembly / Site Works

Based on our tailor-made installation concepts, we will exchange any boiler part to ensure and increase availability. Starting with on-site inspection, developing individual solutions, and carrying out risk assessment, we constantly find suitable ways to realize our clients’ desired project scope.

Installation studies
Installation concepts and execution (e.g., access & transport routes, lifting plan, welding technology)
Project management, site supervision, quality control, HSE management
Establishing a single point of contact for the customer
Quality documentation
Highest requirements towards Safety

Boiler Services Product Installation and Disassembly Site Works NEM Energy

Torsten Smidt - Director Business Unit Aftermarket Services - NEM Energy

Torsten Schmidt
Business Unit Director Aftermarket Services

Would you like to learn more about our Aftermarket Services or discuss how we can support your operations? Feel free to reach out to the Director of our Aftermarket Services Business Unit – we’re here to help and happy to answer any questions you may have.

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