Triple offset butterfly valve 96” 300 # for FCC at 760 degrees celsius. π www. valve-world. net Valve World August 2025
Cover Story since the 1970s, and this one was designed specifically to address the limitations of conventional 2-way or 3-way designs in compact SmartSulf ® systems.” SmartSulf ®, a more efficient Claus-based process, eliminates the need for tail gas treatment units. This cuts down on footprint, complexity and emissions. But it places unique demands on components like valves, which have to operate flawlessly while reducing the need for human oversight. To work with SmartSulf ®, OHL developed the 4-way CDM, an automated, high-performance valve capable of both shut-off and flow direction in one sleek configuration. It’ s already being supplied globally, often right at the heart of SmartSulf ® systems, with minimal human intervention thanks to full automation and integration into plant DCS systems.“ It’ s not just a valve,” Mr Röhrig says.“ It’ s a high-tech control system in its own right.”
Client engagement and engineered products
Whilst many companies produce products for the market, OHL is producing solutions for its customers.“ The customer is telling us,‘ We have a problem, can you help us?’ and we are then looking at how we come up with a solution based on their needs,” explains Mr Röhrig.“ This is where I can look and be happy to say we are making specially engineered products and not serial production.” The success of the 4-way CDM valve is a direct result of OHL’ s commitment to its customers.“ This valve was actually a requirement from the customer side, which is mostly the case when we are developing things,” explains Mr Röhrig.“ Listening and working with what our clients need is a high priority in ensuring quality and satisfaction. We are flexible with making new designs, and we have a fantastic design team and research team to do this.” Client engagement extends just from the development process all the way to the maintenance service. Some weeks ago, an OHL engineer travelled to South Africa to carry out maintenance at a solar power plant.
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Our valves outlive many of the plants they’ re installed in.”
“ For us as an industrial valve manufacturer, this service is nothing extraordinary. Providing intensive on-site support is part of our maintenance service.”
Extreme conditions
From jet engine test rigs with gas temperatures of 2000 ° C to cryogenic gas separation plants operating at-196 ° C, OHL’ s valves are expected to survive and thrive where few others can. For example, OHL’ s marine butterfly valves are built using Titanium, Inconel and Hastelloy alloys that are more at home in spacecraft than in ship hulls. These materials are required because the valves sit at the junction of hot exhaust gases and cold, corrosive seawater. In these environments there is no room for error. swirl at temperatures exceeding + 450 ° C, most equipment would quickly corrode, crack or fail. However, the OHL 4-way valve CDM was made to survive. With a temperature threshold of up to + 450 ° C, which can be higher upon request, and engineered to ISO 5208 Class IV – V tightness, the valve is purpose-built for these hostile conditions. What makes this valve unique is the combination of carefully selected materials, advanced sealing technologies and a unique internal and external heating jacket that prevents sulphur from solidifying, a critical challenge in these environments.“ It’ s the result of decades of experience,” says Wolfgang Röhrig, Managing Director and sole partner at OHL Gutermuth.“ We’ ve been engineering valves for SRU and TGTU systems
Triple offset butterfly valve 96” 300 # for FCC at 760 degrees celsius. π www. valve-world. net Valve World August 2025
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