Presentation Headline Arial 40pt; Title Case; May Be Up to ... - Sign In

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Advantages •Pressures to 400 psig •Pulls suction to 28 in-Hg V •Metered flow •Low shear Disadvantages •Will not run dry •High starting torque •Must run 180 rpm or less •Requires a macerator •Costly repairs & difficult to rebuild in place •Liquid wants to be 200-300 cps viscosity or greater Progressing Cavity •Wears 3-4 times faster than a centrifugal pump in hard iron •Typical WWTP application exposes mechanical seal to full discharge pressure
Failure points…
Page 1 and 2: Wastewater Treatment Techniques for
Page 3 and 4: …is like selecting the correct go
Page 5 and 6: What’s your application? − Retu
Page 7 and 8: Sludge video #2
Page 9 and 10: Sludge video #4
Page 11 and 12: Viscosity • Viscosity, property o
Page 13 and 14: NEWTONIAN • Viscosity decreases w
Page 15 and 16: Municipal wastewater sludge • Mun
Page 17 and 18: What is the Rheology of the sludge?
Page 19 and 20: Laboratory & Field test results •
Page 21 and 22: Things we learned: • When designi
Page 23 and 24: • Hydraulic gradient • Pressure
Page 25 and 26: TR 185 h where, 2 V F K 2 g K= po
Page 27 and 28: Flygt’s Sludge Module within FLYP
Page 29 and 30: Types of pumps used for “Thickene
Page 31 and 32: What’s really important to WWTP?
Page 33 and 34: PD versus Centrifugal pumps • Pos
Page 35 and 36: Progressing Cavity Pumps
Page 37: Progressive Cavity Pumps A single h
Page 41 and 42: Manufacturer’s of Rotary Lobe pum
Page 43 and 44: Failures…
Page 45 and 46: NON-CLOG PRODUCT FEATURES Tangentia
Page 47 and 48: Non-clog Pumps
Page 49 and 50: RECESSED IMPELLER or Vortex Spheric
Page 51 and 52: Centrifugal Screw Pump Vertical lea
Page 53 and 54: WEAR: Cast iron impeller & insert r
Page 55 and 56: FLYGT “Chopper” pumps Advantage
Page 57 and 58: Let’s talk clogging…
Page 59 and 60: …or these modern day clogging hea
Page 61 and 62: JEA - Jacksonville, Florida
Page 63 and 64: Oak Ridge, TN
Page 65 and 66: Summary If it flows, use gravity.
Page 68 and 69: • What’s really important to th
Page 70 and 71: But to properly select a pump, you
Page 72 and 73: Types of pumps used for sludge Plun
Page 74 and 75: PD vs. Centrifugal pumps • Positi
Page 76 and 77: Competing Technologies
Page 78 and 79: How does a Plunger pump work?
Page 80 and 81: Easy to Maintain????
Page 82 and 83: Advantages • Positive displacemen
Page 84 and 85: New TWAS Pump • NT3102 - 5hp was
Page 86 and 87: Manufacturers of Disk or Diaphragm
Page 88 and 89:
Operation sequence of Diaphragm pum
Page 90 and 91:
Do It Yourself with genuine Double
Page 92 and 93:
Midland, Texas - Diaphragm pump •
Page 94 and 95:
Manufacturers of “PC” pumps •
Page 96 and 97:
Advantages •Pressures to 400 psig
Page 98 and 99:
6,000 5,000 4,000 3,000 2,000 1,000
Page 100 and 101:
Digester Recirculation • Digester
Page 102 and 103:
Rotary Lobe Pumps
Page 104 and 105:
ROTARY LOBE Advantages •Metered f
Page 106 and 107:
Replace RLP with Npumps • Custome
Page 108 and 109:
Screw Conveyor Pumps
Page 110 and 111:
Screw Conveyor Pump Manufacturers
Page 112 and 113:
Screw Conveyor Pumps
Page 114 and 115:
Screw Pump Replacement O’Fallon,
Page 117 and 118:
Cutter Pumps • Vaughan • Landia
Page 119 and 120:
Competitor’s pump
Page 121 and 122:
Weakness as perceived by the compet
Page 123 and 124:
Advantages • Heavy duty design
Page 125 and 126:
Flygt N-Pump Advantages •Solids H
Page 127 and 128:
Vaughan Chopper Replacement • Req
Page 129 and 130:
MACERATORS
Page 131 and 132:
…because they cannot handle rags!
Page 133 and 134:
Npumps do not require a Macerator!
Page 135 and 136:
For ALL Treatment Plant Pump Activi
Page 137:
THANK YOU! Paul A. Nelsen Market Ma
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