Zwick has been manufacturing reliable and durable butterfly valves for decades which are suitable for
• demanding industries, whether gaseous or liquid
• Temperature ranges from -215°C – +815°C
• A wide range of chemical and petrochemical processes
To understand why Zwick valves are particularly well suited for use with hydrogen, one should take a closer look at two essential properties of hydrogen:
1) Hydrogen is colorless, odorless and tasteless and it reacts flammable to explosive in combination with atmospheric oxygen. This can be a very dangerous combination, as the escape of hydrogen cannot be perceived with the human senses. Our triple eccentric butterfly valves are 100% tight both internally and externally according to international test specifications!
2) Hydrogen atoms have the disadvantage that they can embrittle metals which can lead to dangerous instability. Metal alloys with a nickel content of 10% – 30% show only very low embrittlement in contact with hydrogen. Zwick can supply butterfly valves in alloys with a corresponding nickel content.
UPDATES:
- Apr, 17 2026 Lutz Holding expands into Italy with new Milan branch
- KSB increases its stake in AI-Omatic
- Apr, 15 2026 Saipem awarded two offshore contracts in the Kingdom of Saudi Arabia worth approximately 400 million USD
- Midland Industries Acquires HVAC Components Distributor TSI
- Heisco lands $563mln Kuwait Oil Company contract