Homepage | Rexus REXUS is a South African company focused on pipeline solutions and committed to earning the trust of our customers with the highest quality products. The company was founded on an international valve REXUS is a South African company focused on pipeline solutions and committed to earning the trust of our customers with the highest quality products. The company was founded on an international valve patent and has evolved with the invention of each new product and service, launching REXUS into a company with global recognition.