
Valve repair up to 48″/10,000 psi, mechanical engineering, on-site machining and coating for large-scale industry.
Relais-Control GmbH & Co. KG
StadeNew on Amplifa
About Relais Control
Relais Control is a company founded in 1986 and based in Stade, specialising in service, repair and manufacture of valves, pumps and control valves for large-scale industry. Its service portfolio covers the overhaul of standard and special valves up to nominal size 48″ and pressure ratings up to 10,000 psi, mechanical engineering including the manufacture of valves and assemblies, and metallic surface coating using the high-velocity flame spraying process with tungsten carbide or chromium carbide. The offering is complemented by welding technology, field service and on-site machining directly at the customer's site, planning and engineering for plant shutdowns, as well as services in aerospace technology such as reworking of workpieces and cleaning of production equipment and moulds. All materials commonly used in power plant and plant construction can be machined. With mobile lathes of the TDF-2 type (machining diameter 300–1,200 mm), flanges with flat and conical sealing surfaces can be machined on site, even overhead. The company also acts as a factory representative for renowned valve manufacturers and offers its own heavy-load and oversized cargo transport services.
- Site
- Stade
- Processes
- Valve repair (standard and special valves), Repair of valves up to nominal size 48″ and pressure ratings up to 10,000 psi, Mechanical engineering and manufacture of valves and assemblies, Metallic surface coating (high-velocity flame spraying) with tungsten carbide or, Welding technology, Field service and on-site machining (on-site valve refurbishment), Planning and engineering (plant shutdowns), Aerospace technology: reworking of workpieces and cleaning of
- Materials
- Tungsten carbide, Chromium carbide, High-Velocity Flame Spraying, Tungsten Carbide, Chromium Carbide, Mobile Lathe TDF-2
- Certificates
- Certified company (specific standard not named), Certified company (standard not specified)
- Founded
- 1986
- Industries
- Power Plant and Plant Construction, Large-Scale Industry, Aerospace Technology, Measurement and Control Technology
- 01
Engineering/Planning
- 02
On-Site Machining
- 03
Welding Technology
- 04
Surface Coating
- 05
Repair/Assembly
- 06
Field Service
- 07
Transport
Materials & Processes
High-Velocity Flame Spraying
Coating process using tungsten carbide or chromium carbide as standard for metallic surfaces.
Tungsten Carbide
Wear-protection coating applied by the high-velocity flame spraying process.
Chromium Carbide
Wear-protection coating applied by the high-velocity flame spraying process.
Mobile Lathe TDF-2
Transportable on-site turning of flanges with flat and conical sealing surfaces, 300–1,200 mm machining diameter.
Locations
Stade
DEHeadquarters and workshop
- Part weight / size
- Valves up to 48″
- Materials
- Common materials of power plant and plant construction
- Mobile lathe TDF-2 (300–1,200 mm machining diameter, 485–1,345 mm mounting diameter, radial stroke 100 mm)
Services & Components





Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Valve repair (standard and special valves)Assembly | – | – | – | – | all materials commonly used in power plant and plant |
| Repair of valves up to nominal size 48″ and pressure ratings up to 10,000 psiAssembly | – | – | – | – | – |
| Mechanical engineering and manufacture of valves and assembliesJoining | – | – | – | – | all materials commonly used in power plant and plant |
| Metallic surface coating (high-velocity flame spraying) with tungsten carbide orSurface | – | – | – | – | Tungsten carbide, Chromium carbide |
| Welding technologyJoining | – | – | – | – | – |
| Field service and on-site machining (on-site valve refurbishment)Machining | – | – | – | – | – |
| Planning and engineering (plant shutdowns)Engineering | – | – | – | – | – |
| Aerospace technology: reworking of workpieces and cleaning ofSurface | – | – | – | – | – |
| Turning of flanges with flat and conical sealing surfaces (on-site, mobile latheMachining | – | 1,200 mm (machining diameter) × 350 mm (machine height) | – | – | – |
| Repair/maintenance of pumps and control valvesAssembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mobile lathe (transportable, for flanges, face-turning and angle-turning head) | TDF-2 | – | Machining diameter 300–1,200 mm; mounting diameter 485–1,345 mm; radial stroke 100 mm; axial stroke | – | Stade (deployable mobile at the customer's site) |
Additional services
Quality
Relais Control is a certified company; the specific standard is not stated on the website.
| Evidence | Stade |
|---|---|
| Certified company (standard not specified) |
History
- 1986
Foundation of the company; since then activities in measurement and control technology, mechanical engineering and valve repair.
- 2019
Deployment of the mobile lathe TDF-2 for on-site turning of flanges.
- 2023
Expansion of services to include in-house heavy-load and oversized cargo transport as well as machine fleet expansion.