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Pump impellers

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Published: 01 January 2006
Fig. 23 Depth profile for an investment cast pump impeller that had essentially no metal removed from the surface. The chromium/iron ratio is low (0.06), and the metal does not meet nominal composition until a depth of 350 nm is reached. This surface will be subject to corrosion and cavitation More
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Published: 01 January 2006
Fig. 3 Uniform corrosion of ACI CD-4MCu cast stainless steel pump impeller after 1 year in an environment containing 50% H 3 PO 4 and 10% gypsum. Courtesy of A.R. Wilfley & Sons, Inc., Pump Division More
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Published: 01 January 2006
Fig. 10 Weld decay of an ACI CN-7M stainless steel pump impeller that was field weld repaired with no postweld heat treatment. The pump service was P 2 O 5 solution at 80 °C (175 °F). (a) Overall view of impeller. (b) Closeup view of the weld repair and the associated weld decay, which More
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Published: 01 August 2013
Fig. 15 Shape of torque converter pump impeller More
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Published: 01 December 2008
Fig. 29 Method of running a pump impeller with a well at the end of the runner More
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Published: 01 January 2002
Fig. 11 The classic appearance of erosion-corrosion in a CF-8M pump impeller More
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Published: 01 January 2002
Fig. 9 Wear on suction surface of centrifugal pump impeller by cavitation and solid particle erosion. Courtesy of CETIM More
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Published: 01 January 2002
Fig. 10 Wear on pressure surface of centrifugal pump impeller by cavitation and solid particle erosion. Courtesy of CETIM More
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Published: 31 August 2017
Fig. 35 A 6800 kg (15,000 lb) pump impeller in ASTM A532 class III type A. Courtesy of GIW Industries, Inc. More
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Published: 01 January 2002
Fig. 6 Photographs of a damaged cast iron pump impeller. (a) Breaks in the back wall of impeller 1 and cavitation pits on the front wall. (b) Cracks following the shape of the blades on the back wall of impeller 2. Both 0.7×. Source: Ref 11 More
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Published: 01 January 2003
Fig. 22 Cavitation damage to an ACI CN-7M stainless steel cast pump impeller used to pump ammonium nitrate solution at 140 °C (280 °F). Courtesy of A.R. Wilfley and Sons, Inc., Pump Division More
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Published: 01 January 2003
the bottom external surface where the pipe rested on the soil. The small-diameter piece in the foreground is a gray iron pump impeller on which the impeller vanes have disintegrated because of graphitic corrosion. Courtesy of Robert D. Port. Permission granted by Nalco Chemical Company, 1987 More
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Published: 15 January 2021
Fig. 11 Classic appearance of erosion-corrosion in a CF-8M (cast equivalent of wrought AISI 316 stainless steel) pump impeller More
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005734
EISBN: 978-1-62708-171-9
... (fused), Cr 3 C 2 /NiCr PS, HVOF, HVAF, DG Pump case and impeller rings and sleeves, valve components, concrete pump and mixer parts, hydraulic rods, bushings and pins, hard chrome plate alternatives, cutting blades, paper pulp suction rolls, oil recovery parts in tar sand applications, directional...
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Published: 01 January 2002
Fig. 7 Erosion through a carbon steel impeller in a pump More
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Published: 01 February 2024
Fig. 48 Pumping capacity of modern airfoil-type impellers compared to marine-type impellers used for quench tank agitation at 280 rpm. Adapted from Ref 41 , 42 More
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Published: 01 February 2024
Fig. 17 Head-flow capacity curves. Pumping capacity for the hydrofoil impeller was reduced 30% when Kv is increased from 1 to 5; the axial turbine impeller, under similar conditions, exhibited a 35% decrease in pumping capacity More
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Published: 01 February 2024
Fig. 20 Pumping number, NQ, under turbulent conditions for various impellers; graph shows pumping number versus impeller Reynolds number for pitched blade turbine More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004219
EISBN: 978-1-62708-184-9
... are discussed and illustrated in the following sections in this article. Uniform Corrosion The most common form of pump corrosion is characterized by uniform attack on the entire exposed surface. Figure 3 shows uniform corrosion on a stainless steel pump impeller that was exposed to 50% phosphoric acid...
Series: ASM Handbook
Volume: 4F
Publisher: ASM International
Published: 01 February 2024
DOI: 10.31399/asm.hb.v4F.a0007007
EISBN: 978-1-62708-450-5
...) consumed by an impeller is related to the volumetric circulation rate ( Q ) (pumping capacity) and the velocity head (ΔH) from the impeller, as determined by: (Eq 1) P ∝ Qρ Δ H where P is the impeller power, Q is the impeller generated flow, H is the velocity head, r is the fluid...