Call Us

(905) 670-0113

Civacon Petroleum Manhole Covers

Civacon’s Petroleum Manhole Covers are the perfect choice for all of your Petroleum cargo tank applications. Our Manhole Covers are ideal for use in new construction, or as a replacement cover for all DOT406 and older MC306 cargo tanks. They meet HM183 replacement requirements and178.345‐5 venting requirements. They’re precision design and construction limits leakage in a roll‐over situation to less than one liter, as required by standards.

Each features a versatile 10” aluminum vent, which is set to open at not less than 3.63PSI, and, if needed, can be safely and easily disassembled for field repairs.

Civacon manhole covers set the industry standard for precision and durability. We offer models for both 16”and 20” manhole openings, in centered and offset fill cover styles. Easy, single ordering part numbers are available, for assemblies with and without weld rings.

Features & Benefits

All include (1) Model NV3000 Pressure / Vacuum Vent installed in fill cover.
• Emergency vent is 363,500 SCFH at 6.25PSI
• Retrofits to existing weld rings
• Reversible PAF opening (hinge) direction
• Cover can be made self‐latching in the field in minutes by adding our Part No. 6261 Latching Kit
• Buna‐N gaskets are standard – optional materials are available upon request
• 10” vent can be safely and easily disassembled in the field for repairs.
• Offset Models include holes for the Vapor Valve and Overfill Detection Sensor, plus a ¼‐inch NPT weld coupling for a brass plug.
• Aluminum Weld Ring, 3‐inch high x ¼‐inch thick, type6061, included on models so designated.

Description

Civacon’s Petroleum Manhole Covers are the perfect choice for all of your Petroleum cargo tank applications. Our Manhole Covers are ideal for use in new construction, or as a replacement cover for all DOT406 and older MC306 cargo tanks. They meet HM183 replacement requirements and178.345‐5 venting requirements. They’re precision design and construction limits leakage in a roll‐over situation to less than one liter, as required by standards.

Each features a versatile 10” aluminum vent, which is set to open at not less than 3.63PSI, and, if needed, can be safely and easily disassembled for field repairs.

Civacon manhole covers set the industry standard for precision and durability. We offer models for both 16”and 20” manhole openings, in centered and offset fill cover styles. Easy, single ordering part numbers are available, for assemblies with and without weld rings.

Features & Benefits

All include (1) Model NV3000 Pressure / Vacuum Vent installed in fill cover.
• Emergency vent is 363,500 SCFH at 6.25PSI
• Retrofits to existing weld rings
• Reversible PAF opening (hinge) direction
• Cover can be made self‐latching in the field in minutes by adding our Part No. 6261 Latching Kit
• Buna‐N gaskets are standard – optional materials are available upon request
• 10” vent can be safely and easily disassembled in the field for repairs.
• Offset Models include holes for the Vapor Valve and Overfill Detection Sensor, plus a ¼‐inch NPT weld coupling for a brass plug.
• Aluminum Weld Ring, 3‐inch high x ¼‐inch thick, type6061, included on models so designated.

Specifications

**16” and 20” Manhole Covers w/NV3000

Part # Description
SSVN111110 16” Offset Manhole with Weld Ring
SSVN101110 16” Offset Manhole without Weld Ring
SSTN111100 16” Centered Manhole with Weld Ring
SSTN101100 16” Centered Manhole without Weld Ring
SSWN111120 20” Offset Manhole with Weld Ring
SSWN101120 20” Offset Manhole without Weld Ring
SSUN111100 20” Centered Manhole with Weld Ring
SSUN101100 20” Centered Manhole without Weld Ring
4754 16” Aluminum Weld Ring only
4755 20” Aluminum Weld Ring only

Help Solve my issue

"*" indicates required fields

Step 1 of 3

Name*