20” [508MM] NON-ASME FULL OPENING SHALLOW HEAD MANHOLE, MODEL 8310, 6 HOLD DOWN, 43.5 PSIG MAWP (NO GASKET (SOLD SEPARATELY), 6", ALUM. (5454 H32), STEEL (SA414 GR. C))

With decades of service and commitment to quality, the Betts’ Full Opening Manhole product line is the proven leader of the chemical transportation and stationary tank markets. This industrial grade 20” [508 mm] manhole includes a low-profile shallow head and conforms to the requirements of 49CFR§178.345-5 and §178.347-3 for use as an access port on DOT cargo tanks.

See the main product page for full details and other available configurations.

Specifications

• Part Number: 8310ASX-6
• Gasket Material: No Gasket (Sold Separately)
• Collar Height: 6"
• Weld Collar Mat'l: Alum. (5454 H32)
• Dome Cover Mat'l: Steel (SA414 Gr. C)
• Weight: 48 lbs