To address this challenge, the ES-665 has been engineered with increased sealing forces, as well as with a tight and consistent fit of the sealing surfaces. The resulting emissions performance of the Enardo ES-665 thief hatch is an industry-leading 0.10 SCFH (standard cubic feet/hour) at 90% of setpoint. The Enardo ES-665 helps to conserve tank contents.

The ES-665 provides tank access as well as pressure and vacuum relief to accommodate tank pressure changes that occur under normal conditions. The ES-665 also limits hatch emissions when pressure or vacuum relief is not required.

In addition to its ultra-tight emissions performance, the ES-665 includes:

  • An available center assembly for improved performance of previously installed models.
  • Multiple relief settings and material options for application flexibility.
  • A latching and lockable lid for added security and safety.

Based on testing at ambient conditions in accordance with American Petroleum Institute 2000 and competitive published data.