Everlast 50-400 High Visc Plug Valve H2S-CO2

Everlast 50-400 High Visc Plug Valve H2S-CO2

Everlast 50-400 is a high viscosity valve lubricant sealant that meets MIL-G-6032 “Grease Plug Valve, Gasoline & Oil Resistant”. 50-400 is designed for use in plug valves as a lubricant sealant. 50-400 is resistant to organic acids, caustic solutions and is inhibited for use in H2S and CO2. This product has excellent dual resistance to water and aliphatic hydrocarbons such as gasoline, jet fuel, lubricating oils, organic condensates and mixtures of these products. 50-400 can be used in a wide variety of applications from the wellhead to product pipelines.



For use in plug valves. Suitable for use in hydrocarbon gasses.

DO NOT use in oxygen service.




  • Water insoluble and washout resistant
  • Fully additive treated
  • 100% synthetic
  • High metal adhesion
  • Inhibited for H2S and CO2


Physical Properties


  • Consistency, Cone Penetration (D-217) 250 to 265
  • Dropping Point, °F (D-566) – none
  • Oil Separation, % wt. Loss, (D-1742) – 5 max
  • Oxidation Stability, (D-942) – 10 max
  • Rust Prevention, (D-1743) – pass
  • Temperature range: 0 to 400°F
  • Corrosion Inhibitor – Imidazoline Derivative
  • EP Additive – Diester Type


Product Code – 50400HV




EV 50-400HV TDS


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