. CONTROLLED LIQUID SYSTEMS is a company that dates as far back as 1963, manufacturing and supplying the widest variety of mechanical seals, pumps and pump spares to the pneumatic industry as well as mechanical seal industry. We do not just manufacture, our clients can order any specifications of seals and we custom make to suit individual needs and projects, as well as 100 percent locally made pump spares for the Warman range. With a fully equipped machining factory to resolve your seal, pump and valve problem, our clients are always kept satisfied because we make sure to deliver you repaired seal on time and to resolve all your pump and valve problem for any make or model.