16" Manhole Cover Assembly w/Pressure Relief Valve

The Betts BETPPVL716BXB is a 16" clamp ring style manhole cover assembly designed for DOT406 and TC406 cargo tank applications. Built with zinc plated steel construction, this assembly provides dependable tank access and secure sealing performance for bulk liquid transport equipment.

This manhole cover includes an integral 406-98 surge suppression pressure relief valve and a 6496 P/V normal vent for safe tanker operation in petroleum and chemical transport service.

Key Features

• 16" clamp ring style manhole cover assembly
• Designed for DOT406 and TC406 cargo tanks
• Zinc plated steel construction
• Integral 406-98 surge suppression pressure relief valve
• Includes 6496 P/V normal vent
• Quick-open inspection hatch design
• Secondary safety catch included
• Reclosing pressure relief valve design
• Suitable for petroleum and chemical transport tankers

Construction Details

The BETPPVL716BXB features a durable zinc plated steel body designed for cargo tank trailer service and bulk liquid transportation equipment.

The clamp ring style design helps provide secure closure, while the quick-open inspection hatch allows convenient access for inspection and maintenance.

A secondary safety catch is included to support safer operation during opening and inspection procedures.

Important Notes

Verify compatibility with the specific cargo tank, venting requirements, and applicable DOT406 or TC406 service conditions before installation.

Installation and maintenance should be performed by qualified personnel following tanker safety procedures.

Consult manufacturer documentation for pressure settings, gasket compatibility, and installation requirements.