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BALINIT DLC STAR coating of gate valve seats reduces the danger of sticking of HVOF coated seats of subsea valves. This improves the functional reliability in deep sea water and under high pressures.

Subsea valves
  • Significant reduction of friction against HVOF-coated (WC-Co) sliders
  • Reduction of friction torque in water, gas and at high temperature
  • Excellent anti-galling and wear properties
  • Superior sealing performance
  • Stability during exposure in High Pressure High temperature conditions (HPHT)
Solution Coating material Coating technology Твердость покрытия, Гпа Coefficient of friction (dry) vs. steel Max. service temp. [°C] Температура процесса [°C]
CrN / a-C:H PACVD ~15-25 0.1 - 0.2 300 < 250

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