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TESCOM™ Anderson Greenwood Instrumentation Models F63/F64 Primary Isolation Valves
Models F63/F64 Primary Isolation Valves
Integrally forged, one piece double block and bleed Keyblok assemblies for primary isolation of pressure take-offs, where the valve is mounted directly to the vessel or process pipe


  • One-piece forged body combines a compact design with strength and reduced potential leak paths compared to conventional designs.
  • Flanged inlet connections available in a choice of sizes and ratings to suit each application.
  • Camlock safety feature on threaded outlet connections prevents accidental loosening in service.
  • Primary isolation and venting ball valves are precision machined and super finished for high performance pressure and temperature ratings. Designed to be fire safe and anti-static.
  • Heavy duty needle type globe valve, graphite packed as standard, ensuring bubble-tight shut-off on venting port.
  • Bolt-on outlet option allows choice of connections for dual instrument mounting, welded connections and chemical injection.
  • Firesafe design to meet API 607, BS6755 Part 2 (optional).


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