Development, manufacture and distribution of turbine bypass systems as well as control and shut-off valves for power plant and plant engineering
GS-Valve Engineering GmbH
Oberhausen · GermanyNew on Amplifa
About GS-Valve Engineering
GS-Valve Engineering GmbH, based in Oberhausen, is a manufacturer of special high-pressure valves qualified to ISO 9001:2015 and PED 2014/68/EU (Module H1), in particular HP/LP turbine bypass systems (Turbine Bypass Systems) as well as control and shut-off valves. The products are aimed at the power industry, steam power plants and the process industry. The product range includes HP bypass valves (Type DSV), LP bypass valves, preheater bypass systems (COV/QCV), desuperheater valves with labyrinth trims as well as gate valves with Stellite-hardened seat surfaces. In addition to its standard range, the company develops customer-specific special valves and supports the design process with finite element calculations (FEA/FEM). The valves are adapted to customer piping as globe, angle or Z-pattern versions and are supplied with pneumatic, hydraulic or electric actuators. In terms of materials, unalloyed and low- to high-alloy steels as well as forged steels to DIN/EN or ANSI are used. An aftermarket service identifies spare parts, including for valves from third-party OEM manufacturers whose OEM no longer supplies them.
- Site
- Oberhausen
- Processes
- Manufacture of HP/LP turbine bypass systems (isolating & control valves), Special valves to customer specification (tailor-made special valves), Engineering with finite element analysis (FEA/FEM), Aftermarket service / spare part identification for third-party OEM valves, HP bypass valves (Type DSV), LP bypass valves, Preheater bypass systems (COV/QCV valves), Desuperheater valves (temperature control, labyrinth trims)
- Materials
- Carbon Steel, Alloy Steel (Low Alloy), Alloy Steel (High Alloy), Forged Steel (forged steel to DIN/EN or ANSI), Forged Steel (DIN/EN or ANSI)
- Certificates
- ISO 9001:2015, PED 2014/68/EU QS system (Module H1), PED 2014/68/EU (Module H1), CE marking for pressure equipment
- Industries
- Power industry / power plant industry, Steam power plants / power plant operators, Process industry, Plant engineering
- 01
Engineering (FEA/FEM design, custom construction)
- 02
Material selection (carbon/low-alloy/high-alloy steel, forged steel)
- 03
Manufacture of valves and systems
- 04
Assembly with pneumatic, hydraulic or electric actuators
- 05
Distribution
- 06
Aftermarket/spare parts service (also for third-party OEM)
Materials & Processes
Carbon Steel
Unalloyed steel for valve bodies according to the process parameters of the application.
Alloy Steel (Low Alloy)
Low-alloy steel, frequently used for preheater bypass systems (COV/QCV valves).
Alloy Steel (High Alloy)
High-alloy material, preferred for preheater bypass valve bodies.
Forged Steel (DIN/EN or ANSI)
Forged steel for gate valves (Type K split wedge, Type P parallel slide) with Stellite-hardened seat surfaces.
Locations
Oberhausen
DEHeadquarters, development, manufacturing and distribution
- Materials
- Carbon Steel, Alloy Steel (Low/High Alloy), forged steel (DIN/EN or ANSI)
- FEA/FEM engineering
- Final assembly of turbine bypass systems and valves
Valves & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of HP/LP turbine bypass systems (isolating & control valves)Assembly | – | – | – | – | Carbon Steel, Alloy Steel (Low Alloy & High Alloy) |
| Special valves to customer specification (tailor-made special valves)Engineering | – | – | – | – | – |
| Engineering with finite element analysis (FEA/FEM)Engineering | – | – | – | – | – |
| Aftermarket service / spare part identification for third-party OEM valvesEngineering | – | – | – | – | – |
| HP bypass valves (Type DSV)Assembly | – | – | – | – | – |
| LP bypass valvesAssembly | – | – | – | – | – |
| Preheater bypass systems (COV/QCV valves)Assembly | – | – | – | – | 1.6368, 1.5415 / A182F1 |
| Desuperheater valves (temperature control, labyrinth trims)Assembly | – | – | – | – | – |
| Gate valves (split wedge Type K, parallel slide Type P), Stellite-overlaid seat surfacesAssembly | – | – | – | – | forged steel (DIN/EN or ANSI) |
| SPV valves (cooling water flow control) and STV valves (tight shut-off, Class VI)Assembly | – | – | – | – | – |
Additional services
Quality & Certification
The quality management system is certified to ISO 9001:2015 (TÜV Rheinland, initial certification 2010) and to Directive 2014/68/EU (PED, Module H1, notified body 0035) and covers the development, manufacture and distribution of turbine bypass systems as well as control and shut-off valves.
| Evidence | Oberhausen |
|---|---|
| ISO 9001:2015 | |
| PED 2014/68/EU (Module H1) | |
| CE marking for pressure equipment |
Company History
- 2010
Initial certification to ISO 9001 by TÜV Rheinland
- 2025
Recertification ISO 9001:2015 (valid until 21.02.2028) and QM system to PED 2014/68/EU Module H1 (valid until 31.01.2028)