Pumps - SCWA

Suffolk County Water Authority

Pumps: An Introduction

Presented by: SCWA- Engineering

William G. Fisher, P.E. / Al Smith, P.E.


Review

Pump

Well

Aquifer


What is a Pump?

Definition: a pump is any of various machines or mechanical devices that move a liquid or gas into or through, or draw it out of something, as by suction or pressure


Pumps at the Authority Functions: • (Well Pumps)

• Move water from the aquifer to: -Distribution System -Elevated Storage Tank & Standpipes -Reservoir

(Booster Pumps) • Increase flow and/or pressure to a specific area


Facilities Inventory

Pump Stations: 234

Wells: 563

Booster Station: 44

Storage Tanks: 61

Total Storage Capacity: 65.9 Million Gallons

Services/Customers: ~385,000

Population Served: ~1.27 Million


Production Statistics

Average Daily Pumpage: ~180 MGD

Peak Day (July 19, 2008): 480.5 MG

Average Minimum Daily Pumpage: 100 MG


Pump Categories Basic pump categories: 1. Well Pumps -Deep Well Turbine (DWT) -Submersible

2. Booster Pumps -Can -End Suction Centrifugal -Vertical In-Line -Pitless Can


Well Pumps Move water from the aquifer to:

-Distribution System -Elevated Storage Tank & Standpipes -Reservoir

(Flow Ranges from 50 gpm to 2,400 gpm)

Static Water Level

Casing

Riser Pipe

Screen

Sump

Gravel Filter

WELL CONSTRUCTION REVIEW

Static Water Level

Pump

Riser Pipe

Screen

Sump

Gravel Filter

Pump in Well

Casing

Static Water Level

Motor Deep Well Turbine (DWT)

Discharge Pipe Grade

Column

Bowls & Impellers

Suction

Head

Shaft

Shaft

WELL PUMP COMPONENTS

(DWT)

Pump Base

Enclosure

Static Water Level

Motor


Column

Bowls

Suction

Head

Shaft

Shaft

WELL PUMP OPERATION

Pump Base

Pumping Water Level

Motor Deep Well Turbine (DWT) Pump


Column

Bowls

Suction

Head

Shaft

Shaft

Pump Drawdown

Pump Base

Well Casing

Casing Vent

Stilling Tube

Air Release Vent

Static Water Level

Motor

(Submersible)


Column

Bowls & Impellers

Suction

Motor Lead

WELL PUMP COMPONENTS (Sub)

Pump Base


Pump Design • Present / Future Water Demands • Well Constraints • Water Quality • Site Restrictions • Power • Costs


Pump Curve


Set Sheet


Booster Pumps Increase flow and/or pressure to a specific area- (Flow Ranges from 25 gpm to 2,250 gpm)

-Move water from a lower pressure zone to a higher pressure zone to supplement one major zone from another to supply a small zone at a higher elevation to provide for a dedicated customer to supplement potential fire flow demand


Facilities Inventory (Boosters)

Total Number of Booster Pump Stations: 44

Stand Alone Booster Stations: 15

Total Number of Booster Pumps: 104


Booster Pumps -Can -Horizontal End Suction Centrifugal -Vertical In-Line Centrifugal -Pitless Can

Basic Booster Pump Categories:


-Concrete Vault -Building -Clam Shell -Hot Box

Booster Pump Enclosures:

Motor Booster Can Style

Supply

Grade

Can

Bowls & Impellors

Suction

Head Shaft

BOOSTER PUMP COMPONENTS Photos

Well Pump Enclosure Photo

Pump Bowls Photo

Pump Impeller Photo

Column Shaft Photos

Pump Head Photos

Reservoir Ave Vault Photo

Waverly Ave Can Booster Photo

Mill Ln Can Booster Photo

Granny Rd Booster Building Photo

Granny Rd Booster Pumps Photo

Malloy Dr Booster Pumps Photo

Circle Dr Booster Vault Photo

Banana St Booster System Photo

Fish Rd Booster System Photo

Samuel St Booster System Photo

Gate Rd Booster Vault Photo

Gate Rd Booster Pump Photo

Edgewood Ave Pitless Booster Photo


Key Concepts • Pumps are an integral part of the infrastructure

•Pumps are used to move water from:

-Aquifer to distribution system

-within or between pressure zones

•There are many pump configurations or alternatives

used at the Authority to effectively and cost

efficiently address the wide range situations

and circumstances found throughout our system


QUESTIONS?

Pumps - SCWA

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