Return Home
Flame and Detonation Arrestors
Pressure/Vacuum Relief Valves
Emergency Pressure Relief Vents
Gauge Hatches
Free Vents
Sizing Program
New Products
Custom Engineered Solutions
Testing Capabilities
Technical Support
Contact ENARDO
Users List
Career Center
Dead Weight Thief Hatch-Models A, A-L, 110-PO, 200 | Lock Down Hatch-Model 1000
Spring Loaded Thief Hatch-Models 660 & 660-L | Spring Loaded Thief Hatch-Models 660-B & 660-LB
Spring Loaded Thief Hatch-Models ES-660 & ES-660-L | Spring Loaded Thief Hatch-Models ES-660-B & ES-660-LB
Spring Loaded Thief Hatch-Model ES-660-HF |  
Gauge Hatches

ENARDO Gauge Hatches

ENARDO Gauge Hatches are used the world over to control evaporation losses and protect tanks against excessive pressure or vacuum. Our line of gauge hatches includes:

  • Dead Weight Models, which are generally used in very low pressure applications with 1, 2, 3, or 4 ounce pressure settings and a 4/10 ounce vacuum relief
  • Spring-Loaded Models, which are utilized in low pressure applications with 2, 4, 6, 8, 12, 16, 24, and 32 ounce pressure settings and 4/10 ounce, 1 ounce, and 3.5 ounce vacuum settings
  • Lock-Down Hatches, which provide secure access but do not provide pressure or vacuum relieving capability
  • NEW!
  • Introducing the ES-660 Series, with enhanced sealing performance equivalent to our high-performance PVRV's of no more than 1 scfh @ 90% of set pressure

To determine which ENARDO Gauge Hatch is right for your application, click on one of the models below.


See how it works!

Click on image to view animation.

Chemical Petrochemical Loading Terminal Pharmaceutical Storage Tanks Landfill Wastewater Refining Oil Production
News and Events Site Map Links