Spirax Sarco is the world leader in the control and efficient use of steam and other industrial fluids. Spirax Sarco provides knowledge, service and products worldwide for the control and efficient use of steam and other industrial fluids. For over 100 years Spirax Sarco has been partnering steam users and specifiers, worldwide, to improve the performance of their plant and processes. In 1888 Sanders Rehders and Company was formed in London to sell steam traps and other steam related products. Today, our worldwide steam business is part of the Spirax Sarco Engineering plc Group, which has been listed on the London Stock Exchange since 1959.