Non-ASME, 20″ Shallow Dish, 4 Hold Down, 5 PSI MAWP, Model 8327 4″ Collar

  • THREADED HOLD-DOWNS
  • LOW PROFILE
  • 4”, 6”, 10” HIGH COLLAR AVAILABLE

Note: Not legal for DOT specification cargo tanks.

Tiona 20” Full Opening Manholes are fabricated for greater strength and less weight. Full 20 inch opening assures safe entrance for inspection or cleaning of tank.

PARTS LIST

Product Details

Assembly No.Weld CollarCoverHardwareNumber Hold Downs* Working PressureWeight
8327ASW-4"AluminumSteelStnls 30445 PSI44 lb [20.0 kg]
8327ALW-4"AluminumStnls 316LStnls 30445 PSI44 lb [20.0 kg]
8327SCW-4"SteelSteelStnls 30445 PSI54 lb [24.5 kg]
8327LCW-4"Stnls 316LStnls 316LStnls 30445 PSI54 lb [24.5 kg]

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