World Valve butterfly valves have been used for more then 50 years. Over these years we have developed a lining which is both resilient and durable and at the same time highly effective for chemical use. A further advantage is the low torque required to open the valve even against full differential pressure acting on the closed disc. The use of World Valve butterfy valves, instead of other valve types, frequently solves the valve problems of clients. Add to this our flexibility and willingness to accommodate to client's individual requirements and you will understand why World Valve has acquired an international reputation for reliability and high quality.