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replacement options for Armstrong H-54-1 pumps.

ratio Member Posts: 3,696
Got an old Armstrong pump that's leaking around the seals. What kind of replacement options do I have? In particular, is there an ECM pump that will go into the existing volute? How 'bout something that'll fit in between the existing flanges? (Are pumps this size pretty standard?)

I do have a spare bearing assy on hand, but I'd like to offer the customer some (an?) energy saving choices.