Profile: K Controls Ltd designs and manufactures products that provide precise, safe and reliable networking, monitoring or control of actuated valves used in the process industries. We are an ISO 9001 certified company. We can also supply the positioner requirements. Our three piece swing check valve has been designed to complement three piece ball valves and is used on chemical, petrochemical and pharmaceutical process lines as well as gas, oil and water applications. It is used wherever unwanted flow reversal has to be prevented.