Sewage Pump Station
Design Information
What city or authority will the station be located?
What is the actual site name? (street, road, ect...)
What are the pump conditions? ______GPM @ ______TDH
What power is available? _____ wire/_____ phase/60 hertz/______(120/208/230/460)
What is the proposed grade elevation? ______What is the proposed slab elevation? ______
What type of pumping station is best for the application?
Flooded suction with dry pit non-clog pumps
Vertical builtogether or vertical flex coupled pumps
Typically the most efficient for flows 100 GPM and higher
Positive suction head required
Longest practical design life (20+ years)
Widest pump condition range
More easily applied to special requirements (flowmeters, ect...)
Most reliable with low maintenance costs
Vacuum-Priming
Wet Well Mounted
Fiberglass enclosure
Maximum suction lift of 16'
Semi-Buried (If high suction lift is greater than 16')
Vertical builtogether pumps
Lower initial and installation costs, however, more costly to maintain
More accessible than flooded suction stations
Self- Priming
Wet well mounted
Fiberglass enclosure
Buried can station
Shallower bury than flooded suction due to self-prime capacity
Less efficient than flooded suction
Pneumatic Ejector
More efficient for flows under 100 GPM
No wet well required
What size pump chamber? ______(7,8,9,10,11,12, 13, 14 or obround) foot diameter
______What is the desired inside height
What diameter entrance tube? 36 inch or 48 inch
Is a maintenance lift an option?
Is a separate equipment tube an option? (Normally installed in large obround stations)
What type of cathodic protection? Anode packs
How many packs?
Is an anode test panel required?
Impressed current
Any special coatings on the chamber and entrance tube exterior?
Fiberglass coating
Polyurethane foam insulation
Other ______
Pump Selection
How many pumps required? (Minimum should be two)
Pump performance?
Speed (900 RPM - 1200 RPM - 1800 RPM)
Desired efficiency?
Pump motors enclosure type (ODP (typical) - TEFC)
Pump drive configuration (builtogether - flexible coupled - v-belt drive)
Pump with mechanical seals or packing? (Mechanical seals are standard)
What type of piping? Ductile Iron (standard)
Steel (standard for vacuum prime type stations)
What size of piping? (Typically limited velocities from 2 FPS to 7 FPS)
What type of isolation valves? Plug valves
Resilient wedge gate valves
Double disc gate valves
What type of check valves? Lever & spring
Lever & weight
Cushioned (air or oil)(normally for high head applications)
Other ______
Any special options? Flow meters
Vibration isolators
Other ______
What type of power and control enclosure? (Nema 1 is standard)
Is a single-phase transformer required?
What type of starters? Across the line
Reduced voltage
Other ______
What type of level controls?
Mercury float Switches
Bubbler type level controller
Standard
Solid State
Ultrasonic level controller
Submersible transducer
Other ______
What Alarm functions are required?
High wet well
Low wet well
Station Flooding
Pump fail
Pump temperature
Power Failure
Unauthorized entry
Other ______
What type of alarm indicators?
120 Volt alarm light and horn
12 Volt alarm light and horn with battery backup
Telephone dialer
Telemetry
What type of environmental equipment?
Lighting
Incandescent
Fluorescent
Ventilation Blower (standard)
Heater (standard)
Dehumidifier (standard below grade)
Sump Pump (standard below grade)
Emergency lighting
Other ______
Any pressure gauges required?
Designers and Fabricators of Water & Wastewater Pumping Stations