specifying pumps why do pumps€¦ · gouldswater technology, a xylem brand gp enterprises co.,...
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Specifying PumpsWhy Do Pumps Fail
www.SSPMA.org1
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SSPMASump and Sewage Pump Manufacturers Association
Since 1956, we are a North American trade organization of sump, effluent, and sewage pump manufacturers and their suppliers.
Working together to:□ train wastewater and plumbing professionals, and□ create product performance and safety standards.
SSPMA members collaborate with each other and government regulators to educate consumers and professionals on the latest
products, their application, proper sizing techniques, safe installation and use, and good maintenance practices.
www.SSPMA.org2
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SSPMA MEMBERSBarnes Pumps / Crane Pumps & Systems
Champion Pump Company, Inc.Eco‐Flo Products Inc. / Ashland Pump Company
Franklin Electric / Little GiantGoulds Water Technology, a xylem brand
GP Enterprises Co., Ltd.Liberty PumpsPentair Water
Superior Pump CompanyZoeller Company
3
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SSPMA ASSOCIATE MEMBERSAK Industries
Alderon IndustriesJohn Crane, Inc.
LevelGuard / Touch Sensor TechnologiesSee Water, Inc.SJE‐Rhombus
Topp Industries, Inc.
4
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Pumps bearing the “SSPMA‐Certified” seal have been tested by the member manufacturer in accordance with SSPMA
Industry Standards.
The Standards are designed to provide accurate performance data for sump, effluent and sewage pumping equipment, to
assist in their proper application and selection.
www.SSPMA.org5
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●Sump Pump
3/4HP 1/2HP 3/4HP
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1/2HP SewageCompany Type Model # HP RPM Disc. Solids Auto Cord TDH 10' 20' 30' 40' WT.
1/2 1750 2 2 Y 15 25 115 45 621/2 1750 2 2 Y 15 26 140 50 841/2 1750 2 2 N 15 27 130 65 751/2 3450 2 2 N 15 39 80 80 50 801/2 3450 2 2 Y 10 26 100 45 381/2 3450 2 2 N 20 40 105 100 45 751/2 3400 2 2.00 Y 20 27 105 40 311/2 1750 2 1.50 N 20 26 110 40 701/2 1750 2 2.00 N 20 27 124 52 761/2 3500 2 2.00 N 20 30 110 62 651/2 1750 2 2.00 Y 18 62 231/2 1750 2 2.00 Y 10 28 130 70 621/2 1750 2 2.00 Y 10 20 160 531/2 1750 2 2.00 Y 10 24 110 30 551/2 3450 2 2.00 N 20 44 124 69 16 761/2 1750 2 2 Y 10 24 110 40 421/2 1750 2 2.00 Y 10 20 85 461/2 1750 2 1.25 Y 15 28 100 50 411/2 1750 2 2.00 N 20 24 100 35 871/2 1750 2 2.00 Y 20 18 60 321/2 1750 2 2.00 Y 20 23 110 40 761/2 1750 2 2.00 Y 20 27 130 65 421/2 3450 2 2.00 N 20 37 125 99 40 841/2 3450 2 1.50 N 20 41 90 68 38 5 751/2 1750 2 2.00 Y 10 21 89 10 411/2 1750 2 2.00 Y 10 26 85 38 501/2 1750 2 2.00 Y 10 21 89 10 511/2 1750 2 2.00 Y 10 26 95 33 831/2 3450 2 2.00 N 20 39 116 83 46 86
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Sump Pump
A pump powered by an electric motor for the removal of clear and/or ground water drainage from a sump, pit or
low point in a residential, commercial or industrial property.
(Less than ½” Solids)
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Effluent Pump
A pump powered by an electric motor for the removal of natural or artificial pretreated liquid waste discharge
from an onsite sewage treatment system.
(½” To Less Than 1” Solids)
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Everybody Know What Effluent Is?
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Septic Tank Effluent
InletOutlet
Filter
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Should an effluent pump be able to pass solids?
What is the difference between a sump pump and an effluent pump?
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Sewage Pump
A pump powered by an electric motor for the removal of wastewater from a sealed basin containing solids of up
to 2” in diameter.
(1” Through 2” Solids)
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Sewage Pump
Why should a sewage pump be able to pass 1” to 2” Solids?
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Sewage Pump
Can you use a sewage pump as a sump or effluent pump?
Can you use a sump or effluent pump as a sewage pump?
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A solid is a sphere of a stated size, plus 0.00 or minus 0.02 on the diameter, that will freely pass through the
strainer and inlet of the pump or the inlet of the pump with no strainer, through or under the impeller vanes or a combination of both without interference with the surrounding volute housing, and out the discharge
opening.
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0
5
10
15
20
25
0 10 20 30 40 50Gallons Per Minute
Tota
l Hea
d in
FT
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Pumps & Types of Construction
Brass or Bronze
Cast Iron
Aluminum
Plastic
Stainless Steel
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Motors
Oil filled / Air filled
Shaded Pole
Split Phase
Permanent Split Capacitor
Capacitor Start Capacitor Run
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Motors
Shaded Pole Split Phase
Permanent Split
Capacitor
Capacitor Start
Capacitor Run
Starting Switch No Yes No Yes
Starting Torque Low Low Low High
Efficiency Low Medium High High
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What is Thermal Overload Protection?
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0
5
10
15
20
25
0 10 20 30 40 50Gallons Per Minute
Tota
l Hea
d in
FT
11.5 FLA
What Is Full Load Amps?
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Full Load Amps
PUMP A 4.0
PUMP B 5.2
PUMP C 8.0
PUMP D 9.7
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Motors
Service Life of Electrical Equipment Diminishes by Approximately Half For Every 10�Degrees C
Temperature Increase
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Motors
Designed to last 10 years at 100 deg. c.
Will only last 5 years at 105 deg. c.
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Where Does The Pump Work The Hardest? A or B
0
5
10
15
20
25
0 10 20 30 40 50Gallons Per Minute
Tota
l Hea
d in
FT
A
B
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Where Does The Pump Work The Hardest? A or B
0
5
10
15
20
25
0 10 20 30 40 50Gallons Per Minute
Tota
l Hea
d in
FT
A
B
8.7 FLA
11.5 FLA
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Power Cords
SJOOWSJ= Junior Duty 300 VoltsO= Oil Resistant Outer JacketOO= Oil Resistant Outer Jacket & InsulationW= Weather & Water ResistantT= Thermoplastic Jacket
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Power Cords
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Power Cords Entrances
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Power Cords Entrances
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Bearings
Sleeve
Ball
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Sleeve Bearings
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●Bearings
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●BearingsUpper & Lower Ball Bearings
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●Impellers
● Plastic
● Cast Iron
● Brass
● Stainless Steel
● Aluminum
● Vortex
● Non‐Clog
● Enclosed
● Single Vane
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Vortex Non Clog
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Impellers
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Seals
Carbon
Silicon
Tungsten
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●Seals
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●
Rotating
Stationary
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SealsINBOARD OUTBOARD
Sealing Area
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Single Seal Double Seal
SEALS
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Grinder Pumps
● What is the difference between a Grinder Pump and a Sewage Ejector?
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Grinder Pumps
● A Grinder Pump cuts the sewage into a slurry before pumping it.
● A Sewage ejector pumps the solids
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Grinder Pumps
● Never need a grinder pump to pump effluent from a septic tank to a leach field.
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Grinder Pumps
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Grinder Pumps
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Grinder Pumps
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Grinder Pumps
020406080
100120
0 10 20 30 40 50Gallons Per Minute
Tota
l Hea
d in
FT
PUMP PERFORMANCE CURVE
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Tether Pumping Length Range
3.5 6.6
6 8.58 1110 1312 1415 1717 19
Pumping Range (inches)
Tether Length (inches)
Wide Angle
Pump Switch
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Pump Switch
Piggy-back plug option
PUMP FLOAT
Piggy-back Plug
Pump Cord
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Pump Switch
The Best Location For A Switch Is For The Pump To Always Be Submerged!
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●Why Pumps Don’t Work
What Are Some Reasons Pumps Might Not Work?
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Why Pumps Don’t Work● Pump Sized Correctly
● Switch Or Control Failure
● Check Amps
● Low or Incorrect Voltage
● Tripped Thermal Sensor
● Debris In Volute
● Volute Inlet Blocked
● Discharge Line Could Be Blocked
● Check Valve Could Be Bad
● Pump Could be Air Locked
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0
5
10
15
20
25
0 10 20 30 40 50Gallons Per Minute
Tota
l Hea
d in
FT
A
B
8.7 FLA
11.5 FLA
Why Pumps Don’t Work
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●Why Pumps Don’t Work
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What do you need to know to ensure you pick the correct pump?
Top Questions To Ask
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● Pump Capacity Requirements (GPM)
● Solids ‐ Handling Requirements
● Discharge Piping Diameter Preferred
● Voltage & Phase Requirements
● Total Dynamic Head (TDH) Of The Installation– What Is The Static Head
– What Is The Length Of The Discharge Piping
Top Questions
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S IZ IN G W O R K S H E E T S ystem R eq u irem en ts
T ota l f ix ture un its f rom F ig . "A " work sheet ............................................... {1}
G P M requirem ents f rom F ig . "B " ............................................................... {2} G P M
P ipe S ize ............................................................... {3} F ric tion fac tors from F ig . "D " F actor Q ty . T ota l
90 D eg. bends45 D eg. bendsT ee (thru-f low)T ee (branch f low)S wing check v a lv eG ate v a lv eD isch. P ipe length {4}
S ystem s' to ta l feet o f p ip in g {5}
F ric tion head per / 100 ' o f p ipe f rom F ig . "E " ............... {6}
M ultip lied by the num ber o f 100 ' increm ents ............... F ric tion H ead {7}of to ta l system p ip ing to determ ine F ric tion S tatic H ead {8}H ead.
T D H {9} T D H
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SSPMA FIGURE “B”
In order to endure sufficient fluid velocity to carry solids (which is generally accepted to be 2 feet per second), the following are minimum
required flows
21 GPM through 2” pipe
46 GPM through 3” pipe
78 GPM through 4” pipe
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OVERSIZING THE PUMP?
•The most efficient part of the curve is usually in the middle of the curve, away from maximum head or flow
•More horsepower or flow is not always better –especially in smaller basins
•Short cycling may reduce the life of the pump. A longer pumping cycle will be better for pump longevity.
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●Which Pump?30 GPM @ 12 TDH
4/10HP
1/2HP
3/4HP
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Which Pump?30 GPM @ 26 TDH
4/10HP
1/2HP
3/4HP
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F r ic t io n h e a d in fe e t p e r 1 0 0 ' o f S c h e d u le 4 0 p ip e
2 " 2 -1 /2 " 3 "G P M P la s t ic S te e l P la s t ic S te e l P la s t ic S te e l
2 0 0 .9 0 .92 5 1 .3 1 .33 0 1 .8 1 .8 0 .6 0 .83 5 2 .4 2 .4 0 .8 14 0 3 .1 3 .1 1 1 .34 5 3 .8 3 .8 1 .3 1 .6 0 .5 0 .65 0 4 .7 4 .7 1 .6 1 .9 0 .7 0 .76 0 6 .5 6 .6 2 .2 2 .7 0 .9 0 .97 0 8 .6 8 .8 2 .9 3 .6 1 .2 1 .28 0 1 1 .1 1 1 .4 3 .7 4 .6 1 .5 1 .69 0 1 3 .8 1 4 .3 4 .6 5 .8 1 .9 2
1 0 0 1 6 .8 1 7 .5 5 .6 7 .1 2 .3 2 .41 2 5 8 .3 1 0 .9 3 .6 3 .61 5 0 1 2 1 5 .5 4 .9 5 .11 7 5 1 6 .4 2 0 .9 6 .4 6 .92 0 0 8 .4 8 .92 2 5 1 0 .5 1 1 .2
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●Which Pump?46 GPM @ 12 TDH
4/10HP
1/2HP
3/4HP
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Sump and Sewage Pump Manufacturers Association
This concludes the education portion of this session
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