The non-return valves are used in pipelines for the storage, transport and production of liquid gases and provide protection against the unintentional backflow of gases or liquids. The non-return valves are used at operating temperatures from -196°C up to +120°C and are available in nominal sizes from DN10 - DN50 and in the pressure range up to 63bar. The valves can be designed with stainless steel (series 2142) or gunmetal body (series 2182).
 

connection types

• Internal pipe thread
• Soldering socket

usage

• Cooling plants
• CO2 for food / industrial applications
• Ar for welding
• N2 for food/pharmaceutical applications
• O2 for medical supply systems
• Cryogenic container
• Cryogenic tanks
• Transport containers and plants for the production, storage and transport of cryogenic liquefied gases such as LIN, LOX, CO2, LAr, LCH4

The fittings are always manufactured free of oil and grease.