Cross-manufacturer overhaul and repair of industrial valves, flow meters and plant equipment.
BIELENBERG GmbH
Kerpen · GochNew on Amplifa
A competent partner in valve repair for over 40 years
BIELENBERG GmbH is a repair specialist for industrial valves and plant equipment based in Kerpen near Cologne. The company overhauls and repairs control, regulating and shut-off valves such as control valves, rotary plug valves and safety valves, dampers, ball and plug valves, gate valves, check valves as well as flow meters, instrumentation and control equipment, pressure transmitters, actuators and control systems. Items processed cover nominal sizes below DN 25 to above DN 1000, in both DIN and ANSI standards. In addition to in-house workshop repair, BIELENBERG offers full service including spare parts procurement, installation and conversion of new equipment from renowned manufacturers, as well as on-site service with permanent workshops at customers' premises. Customers include companies from the chemical and petrochemical industries, refineries, the food and beverage industry, and the energy and utility sectors. The company operates two locations in North Rhine-Westphalia plus two permanent on-site workshops and is certified to ISO 9001:2015 and SCC**-VAZ.
- Site
- Kerpen
- Processes
- Repair and overhaul of control, regulating and shut-off valves (control valves, rotary plug valves, Repair of dampers, ball and plug valves, check valves, Repair of flow meters, instrumentation and control equipment, pressure transmitters, actuators,, Repair of valves to DIN standard (nominal sizes below DN 25 to above DN 1000), Repair of valves to ANSI standard (nominal sizes below DN 25 to above DN 1000), Consultation and planning of repairs as well as spare parts procurement (per DIN ISO, TA-Luft packing concept: partial leak rate measurement via valve stem penetration (test gas He 4.6, On-site service: on-site repair, shutdown/turnaround work, permanent on-site workshops
- Materials
- Valves to DIN standard, Valves to ANSI standard, TA-Luft packing concept, Explosion-protected equipment, Equipment under the Federal Water Act
- Certificates
- ISO 9001:2015, SCC**-VAZ 2021, ÜChem (specialist company under chemicals law), ATEX Product Directive, TA-Luft (packing concept, ÜChem-certified), WGK (water hazard class / WHG), ÜChem specialist company, TA-Luft (packing concept), WGK / WHG
- Industries
- Chemical industry, Petrochemicals / refineries, Food and beverage industry, Energy and utilities, Geothermal energy, Pharmaceuticals
- 01
Consultation and repair planning
- 02
Pick-up and delivery service or on-site service
- 03
Repair and overhaul of the valves
- 04
Spare parts procurement
- 05
Leak rate and tightness testing
- 06
Installation and conversion
- 07
Delivery or on-site commissioning
Valve types and technical areas
Valves to DIN standard
Repair of DIN-standard valves in nominal sizes below DN 25 to above DN 1000.
Valves to ANSI standard
Processing of valves to American National Standards Institute standards in all common nominal sizes.
TA-Luft packing concept
ÜChem-certified sealing system (Lattyflon 3260 LM) for low-emission control and regulating valves up to PN 40.
Explosion-protected equipment
Repair of equipment in accordance with the ATEX Product Directive.
Equipment under the Federal Water Act
Repair of valves and equipment in accordance with WGK / the Federal Water Act (WHG).
Locations
Kerpen
DEMain plant / headquarters
Goch
DEWorkshop / location
Reconditioned assemblies
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Repair and overhaul of control, regulating and shut-off valves (control valves, rotary plug valvesAssembly | – | – | – | – | – |
| Repair of dampers, ball and plug valves, check valvesAssembly | – | – | – | – | – |
| Repair of flow meters, instrumentation and control equipment, pressure transmitters, actuators,Assembly | – | – | – | – | – |
| Repair of valves to DIN standard (nominal sizes below DN 25 to above DN 1000)Assembly | – | – | – | – | – |
| Repair of valves to ANSI standard (nominal sizes below DN 25 to above DN 1000)Assembly | – | – | – | – | – |
| Consultation and planning of repairs as well as spare parts procurement (per DIN ISOEngineering | – | – | – | – | – |
| TA-Luft packing concept: partial leak rate measurement via valve stem penetration (test gas He 4.6Testing | – | – | – | – | Test gas helium 4.6, Sealing system Lattyflon 3260 LM |
| On-site service: on-site repair, shutdown/turnaround work, permanent on-site workshopsAssembly | – | – | – | – | – |
| Installation and conversion of new equipment (control valves, dampers, gate valves, plug valves,Assembly | – | – | – | – | – |
| Repair of dosing and filling systems of all kindsAssembly | – | – | – | – | – |
Additional services
Quality and certifications
BIELENBERG works to DIN ISO 9001:2015 and SCC**-VAZ 2021 (each DEKRA-certified until 20.08.2026) as well as to ATEX, TA-Luft and WGK standards, and is certified as an ÜChem specialist company. Leak rate measurements on valve stem penetrations using test gas He 4.6 up to 40 bar and 100,000 operating cycles ensure the tightness of repaired valves.
| Evidence | Kerpen | Goch |
|---|---|---|
| ISO 9001:2015 | ||
| SCC**-VAZ 2021 | ||
| ÜChem specialist company | ||
| ATEX Product Directive | ||
| TA-Luft (packing concept) | ||
| WGK / WHG |
Company history
- ca. 1985
Foundation of the main plant and headquarters in Kerpen near Cologne; the company can look back on more than 40 years of experience.
- 2025
Personnel and operational realignment as part of the growth strategy, with two locations in NRW and two permanent on-site workshops.