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Enardo™ Model ES-660-HF Spring-Loaded Thief Hatch
The Model ES-660-HF is the latest of our new generation hatches, and is intended for use in applications where higher flow capacity coupled with ultra-tight sealing is required, such as those where process upset conditions may produce excessive flow, and where sour crude/gas is present or where strict environmental emissions standards are enforced.
Enardo™ Model ES-660-HF Spring-Loaded Thief Hatch


Pressure Settings
4.0 to 16 oz/sq in
Vacuum Settings
0.4, 0.9, 3.5 oz/sq in
Bolt Pattern


  • Enhanced Sealing Technology
  • High Flow
  • Tank Gauging
  • Pressure Control
  • Vacuum Control


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