This year, Sofis proudly celebrates 40 years of linear key valve interlocking, a major milestone in mechanical safety innovation. But while the spotlight is on the product, there’s another story worth telling: the internal systems and infrastructure that quietly support everything from production planning to global logistics. For over two... read more →

To mark '40 years of linear key valve interlocking', we sat down with Tan Sri Moh Wung Sing, Managing Director of Multi-Engineering & Management, for an inspiring conversation about a partnership built on trust, innovation, and shared success. Since the early 2000s, Multi-Engineering Management has been a cornerstone of Sofis'... read more →

"Before 1985, valve interlocking was quite basic," recalls Adrian Brown, Technical Support Specialist at Sofis. "It was mostly about putting locks on valves in a rudimentary way. Companies like Castell were welding brackets onto valves. But then Smith Flow Control revolutionized the industry by simplifying the process, making it possible... read more →

What started as a detour from an IT career became a defining journey in valve interlocking. Darren Trowsdale’s 23 years at Sofis reflect a legacy of loyalty, technical growth, and dedication to problem-solving in a rapidly evolving industry. As Sofis marks 40 years of linear key valve interlocking, Darren’s story... read more →