
Process valves from ball valves to fabricated butterfly valves up to 136 inches

Friedrich Krombach GmbH
Kreuztal · Muta · Ravne na KoroškemNew on Amplifa
About Krombach
Friedrich Krombach GmbH, based in Kreuztal, belongs to the KROMBACH® brand within CRANE ChemPharma & Energy and manufactures a broad range of process valves. The focus is on large-size quarter-turn valves, including fabricated butterfly valves up to 136 inches, triple offset valves (Type AK110), metal- and soft-seated ball valves, as well as check, gate, bottom drain, float and vacuum valves. The portfolio is complemented by screens and strainers (basket, Y-type, pot design, hat type screens) as well as sight flow indicators. The products are designed for extreme service, e.g. with corrosive, abrasive, temperature-critical media and high cycle counts. Manufacturing sites are Kreuztal (Germany), Muta (Armature d.o.o.) and the foundry Croning Livarna d.o.o. in Ravne na Koroškem (both Slovenia). Customers are found in chemicals, petrochemicals, refineries, oil & gas, power generation, biopharma and mining. Valves of the brand are certified to TA-Luft 2021 in accordance with ISO 15848-1 (AH, BH and CH test protocols) and are in use worldwide.
- Site
- Kreuztal
- Processes
- Valve manufacturing (large quarter-turn valves, valve assembly), Manufacture of butterfly valves (fabricated, up to 136"), Manufacture of triple offset valves (Type AK110), Manufacture of metal- and soft-seated ball valves, Manufacture of check valves, shut-off valves (gate, globe, check, bottom drain, float, vacuum), Manufacture of screens/strainers (basket, Y-type, pot design, hat type screens), Manufacture of sight flow indicators, Foundry (Foundry Ravne, Croning Livarna d.o.o.)
- Materials
- Foundry production, Valve manufacturing/assembly
- Certificates
- TA Luft 2021 / ISO 15848-1 (AH, BH, CH test protocols), TA Luft 2021 / ISO 15848-1 (AH, BH, CH)
- Industries
- Chemicals, Petrochemicals, Refineries, Oil & Gas, Power industry, Biopharma
- 01
Casting (Ravne foundry)
- 02
Manufacturing/valve assembly (Muta, Kreuztal)
- 03
Quality inspection and final control
- 04
Worldwide distribution
Materials and Processes
Foundry production
Own foundry (Croning Livarna d.o.o., Ravne) produces castings for valve production.
Valve manufacturing/assembly
Manufacture of large-size quarter-turn valves, ball valves and shut-off valves in the size range 3" to 136".
Sites
Kreuztal
DEManufacturing / Customer Service (Friedrich Krombach GmbH)
Muta
SIManufacturing (Armature d.o.o.)
Ravne na Koroškem
SIFoundry (Croning Livarna d.o.o.)
Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Valve manufacturing (large quarter-turn valves, valve assembly)Montage | – | Size range 3" to 136" | – | – | – |
| Manufacture of butterfly valves (fabricated, up to 136")Montage | – | – | – | – | – |
| Manufacture of triple offset valves (Type AK110)Montage | – | – | – | – | – |
| Manufacture of metal- and soft-seated ball valvesMontage | – | – | – | – | – |
| Manufacture of check valves, shut-off valves (gate, globe, check, bottom drain, float, vacuum)Montage | – | – | – | – | – |
| Manufacture of screens/strainers (basket, Y-type, pot design, hat type screens)Montage | – | – | – | – | – |
| Manufacture of sight flow indicatorsMontage | – | – | – | – | – |
| Foundry (Foundry Ravne, Croning Livarna d.o.o.)Guss | – | – | – | – | – |
Additional services
Quality
The products are measured and subjected to quality inspections along the entire manufacturing process; every finished product undergoes careful final inspection and testing. Valves are certified to TA-Luft 2021 in accordance with ISO 15848-1 (AH, BH, CH test protocols).
| Evidence | Kreuztal | Muta | Ravne na Koroškem |
|---|---|---|---|
| TA Luft 2021 / ISO 15848-1 (AH, BH, CH) |
History
The Krombach brand has been known for safety, reliability and extreme durability for more than 60 years.