Tech-Seal International

Oil and GasTexas, United States201-500 Employees

Tech-Seal International, operating as TSI Flow Products, is a mid-sized oil and gas company based in Houston, Texas. It originated as a machine shop supplying high-pressure components to global API 6A gate valve manufacturers and subsequently expanded into high-pressure flow control products. The firm emphasizes designs validated by field experience and builds its components from high-quality materials, supported by rigorous quality controls and standardized processes. It is vertically integrated from forging through testing and final assembly, and maintains API 6A Q1 and ISO 9001 certifications. 

Its products serve applications across major oilfield systems, including blowout prevention, snubbing, cementing, well stimulation, sand separation, coiled tubing, production testing, and flow-back operations. Positioned within the oil and gas sector, the company focuses on delivering reliable high-pressure components for demanding applications in both onshore and offshore settings.

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