Plug Valves Models
Vastas produces API 6D Plug Valves. Vastas Plug Valve production includes Pressure Balance Plug Valve / NPS 2″ – 30″ and other types Wedge Plug Valves / NPS 6″ – 24″ Plug Valve, plus, other types and tailor-made for special size and materials.
Plug Valve was the first valve type produced by Vastas, for Unilever vegetable oil plant in 1966. Vastas plug valve is put into service of oil, fuel oil and petrochemical industry, since 1971. When required it can be manufactured from special material according to NACE corrosion standards and/or temperature class.
Pressure Balance Plug Valves
Plug Valve is an auxiliary valve used in opening and throttling of high pressurized systems. It is used as bypas to the line valve; it balances the pressure and provides the safe opening of line valve.
Plug valves have a conical or cylindrical obturator rotating around the axis perpendicular to the flow direction.
Vastas Plug valves are produced in compliance with API 6D standards. Special products are also available for high temperature & pressure services.
Wedge Plug Valves
This type Plug Valves are non-lubricated type. In order to avoid the high torque because of metal to metal compaction, the plug does rising-rotation and descend movements. It is used for the liquids that may become solid like latex and tar. Body-flushing treatment is done after the operation period.