
Manufacturer of noise protection systems, silencers, exhaust and air intake systems for gas turbines, compressors and cooling towers.

Haritz + Röhring GmbH
Haltern am SeeNew on Amplifa
About Haritz + Röhring
Haritz + Röhring GmbH (H + R) is a multidisciplinary technology company based in Haltern am See, delivering turnkey system solutions for noise protection and filtration in industrial power generation. The product range includes complete air intake systems with static and self-cleaning filter systems, acoustic enclosures, facades and noise barrier walls made of sound-absorbing panels, complete exhaust systems with plenums, hot gas expansion joints, ducts and stacks, as well as silencers for exhaust, blow-off and pressure applications, usable up to 720 °C. The portfolio is complemented by cooling tower silencers including pre-assembly of GRP frames and thermal components. In addition to engineering, design in 3D CAD, acoustic simulations, manufacturing and assembly, H + R provides commissioning, maintenance, retrofit/upgrade and spare parts supply throughout the entire life cycle of an industrial plant. Customers come from the gas turbine, compressor, cooling tower and industrial plant sectors; delivery is worldwide. The company builds on more than 50 years of cumulative experience in noise protection and filtration.
- Site
- Haltern am See
- Processes
- Engineering, design and manufacturing of intake systems with filter systems (static and, Manufacturing and assembly of acoustic enclosures, facades and noise barrier walls made of, Welded fabrication of silencer splitters (stainless steel design, welded with, Design and manufacturing of complete exhaust systems (exhaust plenums, hot gas expansion joints,, Manufacturing of blow-off and pressure silencers in accordance with pressure vessel codes (ASME, Manufacturing of cooling tower silencers and pre-assembly of GRP frames and thermal components, Acoustic and structural calculations, FEM simulations, 3D CAD design and acoustic, Assembly, commissioning, pre-assembly, retrofit & upgrade service, maintenance, inspection and
- Materials
- AISI 409, AISI 321, AISI 321H, Basalt wool, E-glass, HT glass, Mineral wool, GRP
- Certificates
- ISO 9001:2015, ISO 14001:2015, SCC, EN 1090-2, EN 1090-3, EN 1090-3 (EXC3)
- Industries
- Gas turbines, Compressors, Cooling towers, Industrial plants
- 01
Engineering & acoustic simulation
- 02
3D CAD design & structural calculation
- 03
Purchasing
- 04
Manufacturing (welded construction, splitters, panels)
- 05
Pre-assembly
- 06
Delivery & installation
- 07
Commissioning
- 08
Maintenance, retrofit & spare parts supply
Materials & Filler Materials
AISI 409 (stainless steel)
Frame material for welded exhaust silencer splitters under high thermal loads.
AISI 321 (stainless steel)
Frame material for thermally stressed silencer designs.
AISI 321H (stainless steel)
Frame material for heat-resistant exhaust applications up to 720 °C.
Low-alloy and unalloyed steels
Riveted or welded splitter design with mineral wool filling for medium temperatures.
Mineral wool
Standard filler material for silencer splitters at medium temperatures.
Basalt wool, E-glass, HT glass
Filler materials for absorption mats in welded stainless steel splitters.
GRP
Material for frames and thermal components of cooling tower silencers.
Load-bearing steel construction (acoustic enclosures)
Supporting structure for acoustic enclosures, facades and sound absorber panels with spans up to 6 m.
Locations

Haltern am See
DEHeadquarters, engineering, manufacturing, assembly & service
- Materials
- Stainless steel (AISI 409/321/321H), steel, mineral wool, GRP
- 3D CAD design
- Acoustic simulations
- FEM simulations
- Welded fabrication
Systems & Components




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Engineering, design and manufacturing of intake systems with filter systems (static andEngineering | – | – | – | – | – |
| Manufacturing and assembly of acoustic enclosures, facades and noise barrier walls made ofJoining | – | spans up to 6 m | – | – | steel |
| Welded fabrication of silencer splitters (stainless steel design, welded withJoining | – | – | – | – | AISI 409, AISI 321, AISI 321H, low-alloy steels, unalloyed steels |
| Design and manufacturing of complete exhaust systems (exhaust plenums, hot gas expansion joints,Joining | – | – | – | – | – |
| Manufacturing of blow-off and pressure silencers in accordance with pressure vessel codes (ASMEJoining | – | – | – | – | stainless steel, low-alloy steels, unalloyed steels |
| Manufacturing of cooling tower silencers and pre-assembly of GRP frames and thermal componentsJoining | – | – | – | – | GRP |
| Acoustic and structural calculations, FEM simulations, 3D CAD design and acousticEngineering | – | – | – | – | – |
| Assembly, commissioning, pre-assembly, retrofit & upgrade service, maintenance, inspection andAssembly | – | – | – | – | – |
Additional services
Quality & Certificates
Quality and environmental management are certified to ISO 9001:2015 and ISO 14001:2015; in addition, there are SCC certification as well as EN 1090-2 and EN 1090-3 (TÜV Rheinland) with execution class EXC3 for steel construction. Quality and environmental policies are summarized in a binding management manual; evidence of component properties is provided, among other things, through FEM simulations.
| Evidence | Haltern am See |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| SCC | |
| EN 1090-2 | |
| EN 1090-3 (EXC3) |
History
More than 50 years of cumulative experience in noise protection and filtration
Equipping of all natural-draft cooling tower projects worldwide with silencer splitters since the company was founded