Enardo Model 660-B & 660-LB Thief Hatches

Request A Quote

Hydrogen Sulfide, or sour gas, is a gas commonly found during the drilling and production of wastewater treatment, fluid storage tanks, and sewer systems. 

When sour gas is present in an application, it is essential to outfit machinery and equipment with devices that prevent exposure. That is where spring-loaded thief hatches come in handy. Keep personnel and equipment safe from the effects of sour gas with Enardo Model 660-B and 660-LB spring-loaded thief hatches supplied by Arm-Tex. 

A Thief Hatch With Bleeder Attachment

Enardo Model 660-B & 660-LB spring-loaded thief hatches are designed with a round base and cover and include bleeder attachments. This bleeder prevents a spray from discharging when the hatch cover is raised. 

These hatches are intended for use in applications where tight sealing for reduced vapor loss is critical, such as those subjected to sour gas or strict environmental emissions standards. Although similar, the models are slightly different.

enardo 660b spring loaded thief hatch

Model 660-B

A premium spring-loaded thief hatch designed with a round base and cover. This hatch is provided with a bleeder attachment, making it possible to relieve tank pressure before opening.



enardo 660-lb spring loaded thief hatch

Model 660-LB

A premium spring-loaded thief hatch that has a long basin and covers with an inclining base. This hatch includes a bleeder attachment capable of relieving tank pressure before opening.


Both models feature non-sparking aluminum construction with a standard HNBR or optional Viton® pressure gasket. The standard vacuum gasket is Fluorosilicone, but Viton® and Teflon® are optional. Optional upgrades include plastic trim, base gaskets, bolt sets, and non-corrosive coatings.

Your Enardo Product Partner

Enardo 660-B & 660-LB thief hatches are excellent choices for when it’s paramount to control evaporation losses, allow vapors to flow freely, and protect tanks against excessive pressure or vacuum. As a proud distributor of Enardo products throughout Texas, New Mexico, and Oklahoma, Arm-Tex can meet your requirements fast and hassle-free. 

Contact us for more information about a thief hatch with bleeder attachment. Our specialists would love to discuss your application further. 

Contact Us