Topog-E 3" X 4" X 1/2" E (Elliptical) Hand Hole Gasket Commonly Found On Fulton Boilers (Fulton Hand Hole Gasket) For Steam boilers: up to 180 psi (12 bar) and 380º F. (193º C) Water, condensate, etc. vessels: 200+ psi (14 bar) and less than 300ºF. (150ºC) Topog-E Series 180 gaskets have been refined through a series of over 600 research formulation tests to ensure that they are able to meet the exacting performance standards of the steam boiler industry. Specifically they: Conform to the topography of the mating surfaces Withstand a boiler’s full, continuous and cycling operating pressures Withstand continuous exposure to water treatment chemicals Withstand continuous exposure to ion and oxygen attack in hot air Prevent all leakage Replace easily, without chiseling or buffing
