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Pump Design, Operation and Maintenance Steve Truitt, PE Design - - PowerPoint PPT Presentation
Pump Design, Operation and Maintenance Steve Truitt, PE Design - - PowerPoint PPT Presentation
Real World Considerations for Pump Design, Operation and Maintenance Steve Truitt, PE Design Considerations Operation Troubleshooting Maintenance and Op Staff involvement in design meetings Piping design and Pipe Supports
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Maintenance and Op Staff involvement
in design meetings
Piping design and Pipe Supports Gauges! Pressure and vacuum switches for PD
pumps
Pulsation dampeners Suction piping and suction lift
applications
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Independently support piping Install valves on suction and discharge side for
maintenance
If using mechanical joint couplings (Victaulic),
must be rigid cut
Suction piping as short as possible Use check valves when multiple pumps
discharge to common header
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Piping design
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Penn Valley Pump Co., Inc.
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Penn Valley Pump Co., Inc.
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Poor piping design
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On both suction and discharge sides
- f pump
Gauges provide diagnostic tools to
troubleshoot pumping problems
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Recommended for both suction and
discharge sides of all PD pumps
Prevents pump damage due to
blocked lines or inadvertent closed valve
Mounts to top of dampeners, clear of
process liquid to improve gauge and switch life
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- SS316 Body w/ EPDM Sleeve
- Adjustable Vacuum/Pressure
Switches
- 4” SS Gauge
- Glycercin fill for smooth gauge
movement
- SS316 Fittings and Ball Valve
- Quick release air-fitting for easy
dampener re-charging
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Helpful for all PD
pumps
Reduces vibrations and
pulsations in piping
Can be used on suction
and discharge
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Suction piping as short as possible
NPSH Cavitation – reduced flow,
knocking/gravel, pump damage
Suction lift
Pumps create low pressure Vacuum tight valves Straight, vertical pipe runs are best
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Preventative Maintenance Listen Touch Teach
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Tools
Pressure and Vacuum Gauges Tachometer Vibration Meter Amp/Voltage Meter Infrared Thermometer
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Common causes of pumping issues
The pump Hydraulic issues Controls
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Lowest life cycle cost PD sludge pump
Primary, scum, WAS transfer, digester recirculation,
thickening/dewatering feed, industrial
100% manufactured in U.S. for over 35 years Self-priming, Self-valving (No ball check
valves)
Pumps run dry indefinitely without damage No packing/mechanical seals (No seal water!!) Minimal routine maintenance required (no
- il/grease, no traditional seals)
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