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DK-LOK is a globally recognized manufacturer of tube fittings and valves for critical fluid and gas control systems. NISCO supplies the full DK-LOK product line to support industries requiring safe, leak-tight performance, including energy, petrochemical processing, semiconductors, biopharmaceuticals, and analytical instrumentation.

Available DK-LOK products include tube and compression fittings, isolation and instrument valves, manifolds, distribution blocks, quick connects, and monitoring accessories. Manufactured from high-grade materials and held to tight tolerances, these components deliver reliable performance in high-pressure and high-purity applications and are supported by global certifications, including ASME N and NPT stamps.

NISCO can help you select the right DK-LOK components for your application.

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About NISCO Inc.

NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.

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