KIRKﾮ is an industry leader and brand name associated with trapped key interlock systems. Kirk Key Interlock Company LLC is owned by Halma plc (publicly traded on the London Stock Exchange). Kirk manufactures trapped key interlocks and interlocking systems for the protection of personnel and equipment. Our products include bolt interlocks, access interlocks, valve interlocks, electro-mechanical interlocks, cylinder interlocks, and transfer interlocks. Proper application of our interlocks guarantees that a sequential pattern is followed for each step of a prescribed sequence. KIRKﾮ key interlock systems are designed and configured to each userﾒs requirements and revolve around a key or keys that an operator must use at each step in the sequence . The company manufactures four different series of key interlocks: SD Series, MD Series, HD Series, and our Eagle Series interlocks, offering a line of valve interlock products to meet the process safety needs of the flow control industry.
Sector: Electrical/Electronic Manufacturing & Services
Year Established: 1932