DK-Lok supplies industrial applications from analytical and process instrumentation, gas, power generation, petrochemical processing, shipbuilding to semiconductor manufacturing. DK-Lok fittings and valves are manufactured to stringent industry standards. With the use of only the highest grade raw material and 1/1000″ tolerance control on each and every part, DK-Lok assures a leak-tight seal in all process, power, and instrumentation applications. Testaments to DK-Lok’s quality are their N and NPT stamps awarded by ASME for the use of their products in Nuclear applications. In addition, DK-Lok has obtained approvals from such agencies as Lloyd’s Register, DN, ABS, etc; making them one of the most certified tube fitting and valve manufacturers in the world.