• Bronze fitted pump construction
• Bronze shaft sleeves
• Dynamically balanced impellers
• Bronze case wearing rings
• Twin volute on 10″ and larger pumps
• Stainless steel impeller key
• Regreaseable ball bearings
• Single row ball bearing (inboard)
• Double row ball bearing (outboard)
• Mechanical seals…single unbalanced (Models 412 and 413)
• Graphite and TFE lubricated acrylic packing
• Internal bypass between casing and stuffing box
• 125# ASA flanges
• 250 psi case working pressure
• Carbon steel shaft
• Stuffing box bushings
• Lifting lugs
• Hydrostatic test
• Cast integral bearing arms
• Water slingers and grease seals
• External bypass between casing andstuffing box (Models 412 and 413)
• Coupling guard (Model 411)
