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Construction Features:
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The Flowmore line of single stage, double suction, Split-case Centrifugal pumps is representative of the broad line of Flowmore pumps serving industry. Typical applications include municipal / water supply systems, water-circulating, brine-circulating, air washer circulating, fire service, booster service and numerous other industrial services. |
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IMPELLER : Impeller is a one piece of cast-iron or bronze. Internal and external surfaces are carefully machined and finished to produce best possible pump performance. Impeller is pressed on the shaft over a key extending beyond the impeller so that the key also drives the shaft sleeves and prevents rotation of the sleeve on the shaft. BEARINGS AND HOUSINGS : Ball-bearings are of ample size to withstand all axial and radial loads imposed upon them. Bearing housings are of the cartridge type so designed to permit the entire rotating element to be removed from the pump without disturbing the alignment or exposing the bearings to dirt, water, or other contaminants. Housings are positioned by means of dowel pins in the lower half of the casing. STUFFING BOX : Stuffing boxes are extra deep to accommodate the packing and a seal cage. The box is tapped for sealing liquid. Bronze glands are of the split type, easily removable for repacking and are held in position by bronze swing type gland bolts. Mechanical Rotary Seals in place of packings are available. WEARING RINGS : Impeller wearing rings are of bronze, are locked against either rotation and are machined integral with the impeller to insure concentricity. Casing wearing rings are cast-iron secured by tongue and groove fit with lower half casing. SHAFT ASSEMBLY : Shaft is of alloy steel machined and accurately ground to size. Removable bronze shaft sleeves provide protection against corrosive and abrasive action of the liquid pumped. Shaft sleeves are locked on the shaft by exterior sleeve nuts secured by set screws. This permits axial adjustment of the impeller and serves as a built-in bearing puller for servicing the pump. CASING : Casing is a dense, high strength iron designed and cast to make all water passages smooth without excessive hand finishing. Opposed dowels insure proper alignment of upper and lower casing. Bearing brackets are cast integrally to maintain accurate and permanent alignment. Provision is made for piping stuffing box leakage to drains and overflow holes are provided to protect the bearings in the event the drains become clogged. Upper half of casing is easily removed for inspection and repairs, and is so designed that entire rotating element can be removed without disturbing pipe connections or the driver. TYPICAL APPLICATIONS :
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