Series 493

With the high-pressure overflow valves of the 493 series, Goetze offers an innovative solution for protecting high-pressure systems.

The 493 series includes two different designs – design I and design III – that are specifically designed for different installation situations, pressure ranges and operating conditions. Whether in hydrogen compression, pump protection or gas liquefaction – the 493 series is the optimal solution for demanding high-pressure applications.

As soon as the set maximum pressure is reached, the valve opens automatically and diverts excess medium into a low-pressure area or a return line. This protects high-pressure pumps, compressors and pipelines from overload and reduces the risk of system failures.

The 493 series is available in two designs that offer specific advantages depending on the application requirements. Design I covers a pressure range from 50 to 500 bar and has a rotatable outlet stroke that allows for flexible installation. By contrast, design III is designed for pressures up to 1000 bar and is particularly suitable for robust applications. With a fixed angle housing, the design III is back-pressure compensated up to 500 bar, which ensures particularly stable pressure control even in demanding environments. While design I impresses with a wide temperature range of -196 °C to +200 °C, design III is optimised for operating temperatures between -10 °C and +150 °C.

The robust stainless steel construction of both designs also ensures high corrosion resistance and a long service life, even under demanding conditions.

Typical applications for the high-pressure overflow valve can be found in pump protection, hydraulics of diaphragm compressors and technical gas compression. It plays a particularly important role in hydrogen applications, CO₂ extraction processes and cryogenic high-pressure systems, where reliable pressure relief is essential. Series 493 is also used in chemical and petrochemical industrial processes and high-pressure storage.

With its precise function, flexible installation and exceptional durability, the 493 series sets new standards in high-pressure protection. Companies that rely on maximum operational safety and efficiency benefit from a reliable overflow valve that works optimally even under extreme conditions.

Let us advise you now – we have the relevant solution for your high-pressure application!

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