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Cera Valve

Ball Valve • KST


The CeraValve type KST is a ball valve with ceramic lining for open / close function and control tasks to be used in excessively abrasive and corrosive
media. It is to be preferably used if special requirements are placed on the stem sealing, on the housing materials (PVDF, titanium) or if there are very high or very low operating temperatures and high pressures. The basic principle is based on the floating ball design. The seats are rigid (fixed), the ball has a defined clearance and is pressed against the downstream seat by the differential pressure, sealing it. The ¼-turn movement of the ball between 0 and 90 ° releases an accurately defined opening crosssection. The geometric shape of the ball defines the function and control characteristics. This ball valve has a "three part body" design. Consequently, it can be adapted to existing pipelines and the flow and control characteristics can be optimised. These valves are available with manual lever or gear box, as well as with pneumatic, electric and hydraulic actuators. The actuator is mounted by means of a yoke and adapter arrangement. All
customary actuators can be used as part-turn valve actuators. Special connections are possible.


  • all metallic materials for the housing
  • Plastic housing (e.g. PP or PVDF)
  • Fire-safe design
  • TA-Luft design
  • High temperature design (KST-HT type)
  • Wafer-type
  • Chemistry design (KSC type)

Typical application areas

Steel works

  • Control valve for coal injection (PCI)
  • Expansion valve for coal silo
  • Dosing of additive in Electric arc furnace (EAF): e.g. carbon powder
  • Raw iron desulphurisation with CaC, SiO2, MgO2 …
  • Slag formation with quartz sand

Paper & pulp

  • Control valve for lime slurry
  • Control valve for Kaolin, talcum, pulp with wood residue…

Chemistry: (with PVDF housing)

  • Solid-containing media with a low pH value

PCI: Pulverised Coal Injection
EAF: Electric Arc Furnance

CERA SYSTEM Verschleißschutz GmbH

Heinrich-Hertz-Straße 2 – 4
07629 Hermsdorf

Phone: +49 3 66 01 919 0
Fax:+49 3 66 01 919 90

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