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TK CORPORATION

Grayloc® Products We deliver industry-leading solutions for critical service piping and pressure vessel systems.

GENERAL INFORMATION

TK Corporation is one of the world’s leading manufacturers of Butt Weld Pipe Fittings, backed by over five decades of engineering expertise and large-scale production capacity. With three fully equipped factories and advanced forming and heat-treatment technologies, TK delivers a complete product range from ½” to 158” for Oil & Gas, Petrochemical, Power Generation, and Shipbuilding industries. Our commitment is to consistent quality, strict process transparency, and on-time delivery, supported by full traceability across every stage of manufacturing.

Key Advantages

  • World-Class Capacity – Three factories supporting high-volume, on-time production.
  • Full Size & Material Range – ½”–158” fittings in carbon, stainless, low-alloy, and non-ferrous steels.
  • Advanced Manufacturing – Modern forming, heat treatment, and inspection systems.
  • Assured Quality & Traceability – Complete QC control with full manufacturing traceability.
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FEATURED PRODUCTS

Clamp Connectors
Clamp Connectors
Our Clamp Connector delivers a compact, lightweight, metal-to-metal bore seal solution that’s easy to install and trusted for critical service since the 1950s—optimizing system design while ensuring long-term reliability.
Non-Slam Nozzle Check Valve
Non-Slam Nozzle Check Valve
Our Non-Slam Nozzle Check Valve features an optimized flow path, low-friction movement, and short disc stroke to minimize pressure loss and reverse flow, delivering stable, low-maintenance performance.
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