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Sem-Tec, Inc. is New England based supplier servicing the Ball Valve Industry.

Steel, Aluminum, Nickel, Brass, Bronze & Ni-Cu Valve Ball Materials


  • Carbon Steel
  • Stainless Steel (all types)
  • Monel
  • Alloy 20
  • Aluminum
  • Hastelloy
  • Titanium
  • Nickel
  • Brass
  • Bronze
  • Aluminum Bronze
  • Ni-Cu
  • Inconel


  • Regular Port
  • Multi-Port
  • Top Entry
  • Trunnion Type
  • Ball and Stem

Sem-Tec can arrange to have your material plated. A wide variety of plating types are available of which some are hard chrome, nickel under chrome, electroless nickel as well as Teflon coating. 

Hollow balls from Sem-Tec-Plating of all types