Non-ASME, 20″ 6 Hold Down, 50 PSI MAWP, Model 8355, 10″ High Collar

  • THREADED HOLD-DOWNS
  • 6” OR 10” HIGH COLLAR AVAILABLE

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 CollarCoverWing-Nut, Swing Bolts Hinge PinsNumber Hold Downs* Working PressureWeight
8355ASW-10"AluminumSteelStnls 304650 PSI 3.4 BAR38 lb [26.4 kg]
8355ALW-10"AluminumStnls 316LStnls 304650 PSI 3.4 BAR38 lb [26.4 kg]
8355SCW-10"SteelSteelStnls 304650 PSI 3.4 BAR88 lb [40 kg]
8355LCW-10"Stnls 316LStnls 316LStnls 304650 PSI 3.4 BAR88 lb [40 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