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Betts Industries · Electrical & Lighting
PPVL-720BXB
In stock · ships from Knoxville
This is a 20-inch round manhole assembly for DOT 406 cargo tanks, built with an integral PAF 406-98 surge suppression pressure relief valve.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
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Other applications
Fits tanks with compatible 20-inch bolt/clamp ring pattern; verify base dimensions before ordering. Not intended for electrical/lighting use despite internal categorization.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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It serves as the primary pressure relief device, opens quickly for tank inspections, and includes a secondary safety catch and a 6496 normal vent. The manhole helps prevent tank damage during pressure surges and is typically replaced when seals fail, after a collision, or when the relief valve no longer holds calibration.
Part Number: PPVL-720BXB
20 STANDARD
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting
