Dresser manufactures hot tap, line stop and pressure control fittings for the natural gas, oil and chemical industries.  Our Intervention Solutions LS-2 pressure control fittings are available for steel piping systems in threaded sizes from 1/4″ through 3″ and flange fittings from 4″ through 12″.  LS-2 fittings are designed, tested and manufactured to meet or exceed the code area replacement requirements for pressure containment per ASME/ANSI B31.8 (Gas Pipelines).