Explosive decompression resistant seals (std for Class 600 and higher).SS or Inconel 625 overlay on sealing areas.PTFE spring energized lip seals for seat and stem sealing.Plastic polymer insert for seat sealing.Electroless nickel coating on pressure-controlling parts and stem.Integral stop in the adapter plate for a permanent reference to open and closed positions.Sealant injection system for emergency seat sealing.Pressure relief valve in the body cavity to prevent pressure lock.Double-piston-effect seat rings (double sealing barrier in both directions)].Primary metal-to-metal seal and protected secondary O-ring seal.Low friction metal-backed self-lubricating PTFE sleeve bearings and thrust washers.This design also allows for specialty configurations required in applications such as subsea installation and LNG plants. The standard designs are ideal for transmission and standard production operations. The GROVE valve is constructed of forged components bolted together in a side-entry design. Standards Compliance of GROVE Ball Valves.
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