Standard port, Multi-port, Ball & Stem, Angle Port, Top Entry & Trunnion Valve Balls

For over 50 years, Sem-Tec has manufactured high quality valve balls for end users in the ball valve industry.

We offer a complete line of valve balls including standard port, multi-port, ball & stem, angle port, top entry and trunnion type. Sem-Tec currently services the petrochemical, medical, food, hydraulic, transit, nuclear, commercial prototype and military industries.