Complete Assemblies With Ring

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Burnham Handhole Assembly, with Patch Plate. 3 X 4, E, Flat
Burnham Handhole Assembly, with Weld Ring. 3 X 4, E, Flat

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Complete Assemblies With Ring FAQs

An assembly "with ring" includes the reinforcing ring along with the plate and yoke, which is needed when the original ring is damaged or when installing a new opening rather than replacing just the plate.

A patch plate assembly includes a welded patch ring designed to be installed over an existing opening, often used when upgrading or repairing an older boiler shell.

A weld ring is welded into the boiler shell as the mounting ring for the plate, while a patch plate assembly typically covers a larger repaired area.

Yes. Several models are sized for round shell diameters (noted as "R" plus a number, e.g. 42R), so matching the shell diameter is key to fit.