Superior Boiler Works Handhole Plate Assemblies

Superior Handhole Assemblies (Less Ring) We offer many Cast Iron handhole plates for Superior Boilers in stock. The cast Iron plates measure 3 x 4 ½ Obround and come flat or curved. Casting Numbers are clearly marked on each plate. We carry both clip and stud-style plates, which come with a neoprene handhole gasket with every plate. Stainless steel plates are available too! All handhole and manhole plates listed are flat-coded plates with the exception of the 11 x 15 which also has a non-coded version. Non-Code manhole assemblies have been proof tested to 600 PSI. These lightweight, single bolt and crab manholes have been designed for use in Non-Code vessels of low pressure, requiring frequent inspection and/or cleaning. Pressures should not exceed 15 PSI working pressure.