Challenges of cryogenic technology
In cryogenic technology, media such as liquefied gases must be safely shut off. These media require particularly resistant and safe valves that are able to withstand extremely low temperatures without losing functionality or tightness.
The main challenges are the selection of suitable materials that do not become brittle under cryogenic conditions and the design of the sealing technology to ensure long-term functionality and process reliability. The demands placed on valves in these applications are immense: they must be robust, low-maintenance and absolutely reliable in order to minimize the probability of impact in these safety-critical processes.
The HGC high-performance butterfly valve - The solution for extreme low temperatures
Our high-performance butterfly valve HGC is the ideal choice for applications that require safe and reliable shut-off at cryogenic temperatures. As a double-eccentric butterfly valve with a cryogenic spindle extension, it is specially designed for use down to -196°C. This design ensures that the pressure-bearing components are optimally protected, while at the same time the valve guarantees maximum tightness.
The HGC is available as a wafer, flanged or double flanged valve and can be mounted between flanges to EN 1092 (PN 10/16/25/40) or ASME Cl 150/300. Thanks to its robust design and low-wear switching principle, it can withstand the high process loads and is therefore ideal for use in systems that rely on the safe processing and transportation of cryogenic media.
The PMT high-performance ball valve - Percision and safety
Our PMT high-performance ball valve sets new standards in cryogenic technology. This 1-part, laser-welded version made of 1.4404 stainless steel was specially developed for use in cryogenic processes where media such as liquefied gases are processed.
An outstanding feature of the PMT ball valve is the spring-loaded seat ring system, which enables a constant torque in the switching behavior even at temperatures down to -196°C. In addition, this valve has an integrated pressure relief system, a blow-out-proof switching shaft and a virtually dead space-free design. This not only ensures a high level of process reliability, but also minimizes the risk of leaks.
The pre-stressed stuffing box seal in accordance with TA-Luft also ensures that no unwanted gases escape, which is particularly important in safety-critical systems. This combination of advanced technology and carefully selected materials makes the PMT a reliable and durable solution for demanding cryogenic applications.
GEFA cryogenic valves - Reliability at extreme temperatures
With our high-performance valves from the HGC and PMT series, we offer you high-quality solutions for use in cryogenic media. Both products have been developed to meet the extreme requirements of cryogenics while ensuring maximum safety and reliability. Our cryogenic valves are used worldwide in a wide range of applications and have proven to be reliable companions in demanding processes.
If you would like to find out more about our cryogenic valves or require technical data on our products, you can find further information on our website. We look forward to providing you with customized solutions for your specific applications.
