DK-Lok

DK-Lok Corporation is a South Korean manufacturer of instrumentation fittings and valves, based in Busan, best known for twin-ferrule compression fittings that seal small-bore stainless and alloy tubing in analyser, process and hydraulic instrument lines. What is listed here is the high-pressure needle valve: the DK20NV rated 20,000 psig and the DK60NV rated 60,000 psig, both in 316 stainless steel with a T-bar handle, and supplied with female NPT or cone-and-thread (autoclave type) end connections. Valves of this class are used for isolation and throttling on test rigs, hydrostatic test and pressure-calibration work, hydraulic power units and oilfield service equipment. Specify working pressure, end connection and orifice, stem type - regulating or non-rotating tip - a packing material suited to the temperature, and the fluid.