ASME, 24″, 8 Hold Down, 100 PSI MAWP, Model 8324, 10″ High Collar

This Tiona 24” Full Opening Manhole conforms to the requirements of the ASME code for pressure vessels Section VIII, Division 1.

  • ASME symbol & data provided
  • Threaded hold-downs
  • 6” or 10” high collar available
  • Pressure (MAWP): 100 psig
  • Vacuum: Full Vacuum
  • Steel and Stainless have a maximum temperature of 650 degrees Fahrenheit (note: service temperature may be limited by the gasket selection).


Product Details

Assembly No.Weld CollarCoverWing-Nut, Washer Hinge PinsNumber Hold Downs* Working PressureWeight
8324SCW-10"SteelSteelStnls 3048100 PSI [6.8]125 lb [56.9 kg]
8324LCW-10"Stnls 316LStnls 316LStnls 3048100 PSI [6.8]125 lb [56.9 kg]
Canadian Registration Number OH1777.512346

During installation and welding the collars to the tank, care should be exercised to insure the collars remain flat and round in order to assure proper performance. If necessary a welding fixture should be used to prevent distortion.

Installation & Maintenance

MM-MH001: Full Opening Manhole Installation and Maintenance Manual

Engineering Bulletins

EB3-99: Installation and Care Instructions for Teflon Encapsulated Square Gaskets for Tiona-Betts Full Opening Manholes

EB-07-03: Maintenance and Use of Betts Full Opening Pressure Manhole