We utilize the special steel of heat
resistant alloy for performing reliably over long period at elevated
temperatures and corrosive environment under high dynamic load.
Intake Valves are made from steel EN 52 and Exhaust Valves are made
from austenitic steel or EN 52 or Bi-metal. To ensure uniform
mechanical properties of the steel, the material passes through Heat
Treatment Process in the furnace.
Valve stems are chrome plate or tuff
trident / Nitrided to increase surface hardness of the stem and
resistance to corrosion of lubrication. Valve Seat portion and tip
are hardened by special induction hardening process to increase the
corrosion and wear resistance. Cattor and groves are made on a
special purpose turning machine within close tolerance and accuracy.
Seat grinding is done on a special purpose machine to ensure
consistent concentricity and cylindricity to match the international
standards.
