Oil lubricated circulator|Cast iron body|Sleeve bearing, oil lubricated with replaceable resilient motor mounts|Noise dampening coupler|Bell & Gossetts own flexible spring design adds to quiet operation, do not accept a substitute|Long bronze sleeve bearings maintain exact shaft alignment|Provides for constant circulation of oil over bearing surfaces|Precision ground pump shaft is oversized to provide large bearing surfaces|Hardened integral thrust collar minimizes end-thrust to ensure long seal and bearing life|The Bell & Gossett standard mechanical seal is designed to withstand the wide range of water temperatures, pressures, additives and dissolved solids common in hydronic systems|Centrifugal impeller prevents accumulation of air at seal faces to assure long life|Close impeller/body tolerances minimize water slippage and maximize efficiency|3 in NPT flange|Steel, Zinc Plated or Lead-Free Brass impeller|Drip proof motors|Recommended for indoor use only|Model HD3

CSA Certified|cUL/UL Listed|SA Registered