Specifications - City of Montpelier, Vermont

Title:Montpelier District Heating15453 – Plumbing PumpsCity of Montpelier, VT1. “Series NBF,” Bell & Gossett, ITT.2. “Astro Series,” Armstrong Pump, Inc.3. “00 Series,” Taco Inc.4. “Series PL,” Bell & Gossett, ITT.5. “1400 Series,” Taco Inc.6. “Series LR”, Bell & Gossett, ITT.Issue Date:September 28, 2012Page #:4 of 92.3 INLINE CIRCULATORSA. General Description: Circulators shall be horizontal inline, centrifugal, separatelycoupled, singlestage, allbronze, radially split case design, with mechanical seals,and rated for 125 psig working pressure and 225 deg F continuous watertemperature.B. Casings: Bronze or iron (for nonpotable service), with threaded companionflanges for piping connections smaller than 21/2 inches, and threaded gagetappings at inlet and outlet connections.C. Impeller: Statically and dynamically balanced, closed, overhung, single suction,fabricated from brass or bronze, and keyed to shaft.D. Pump Shaft and Sleeve: Alloy or stainless steel shaft with oillubricated coppersleeve.E. Mechanical Seals: Carbon steel rotating ring, stainless steel spring, ceramic seat,and BunaN bellows and gasket.F. Pump Bearings: Oillubricated, bronze journal and thrust bearings.G. Shaft Couplings: Flexible; capable of absorbing torsional vibration and shaftmisalignment.H. Motors: Resiliently mounted to the pump casing.I. Manufacturer’s – Inline Circulators1. “Series S & H,” Armstrong Pump, Inc.2. “Booster Pump Series,” Bell & Gossett, ITT.3. “Series 110120,” Taco Inc.4. "Series 1000," Armstrong Pumps, Inc.5. "Series 60," Bell & Gossett, ITT.6. "1600 Series," Taco, Inc.PLUMBING PUMPS 15453 4