sizing guidelines for new or replacement sewage pumps · basin selection materials polyethylene...
TRANSCRIPT
![Page 1: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/1.jpg)
Sizing Guidelines for New or Replacement Sewage Pumps
Deron B. OberkornSSPMA Technical Committee Member
www.SSPMA.org 1
![Page 2: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/2.jpg)
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.org 2
![Page 3: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/3.jpg)
SSPMA MEMBERSBarnes Pumps / Crane Pumps & Systems
Champion Pump Company, Inc.Franklin Electric / Little Giant
Glentronics Inc.Goulds Water Technology, a xylem brand
Liberty PumpsPentair Water
Superior Pump CompanyZoeller Company
www.SSPMA.org 3
![Page 4: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/4.jpg)
SSPMA ASSOCIATE MEMBERSAlderon Industries
Campbell Manufacturing Inc.John Crane, Inc.
Motor Protection Electronics, Inc.SJE‐Rhombus
www.SSPMA.org 4
![Page 5: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/5.jpg)
Sizing Guidelines for New or Replacement Sewage Pumps
• Topics covered• Pump Capacity Requirements• Total Dynamic Head (TDH)• Solids Handling Requirements• Basin Selection• Simplex and Duplex Sytems• Sizing Example
www.SSPMA.org 5
![Page 6: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/6.jpg)
Pump Capacity Requirements
• Based upon water generating fixtures• Each fixture rated in “Fixture units”• Compilation of fixture units creates max system capacity • Pump must remove min of max system capacity
• Pump is part of a system
• Three components• Pump, Control, Container
www.SSPMA.org 6
![Page 7: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/7.jpg)
Pump Capacity RequirementsFixture unit and flow curves
www.SSPMA.org 7
Bathroom group flush tank 6Water closet - flush Tank 3Lavatory 1Bathtub ‐ private 2Shower Stall 2Sink ‐ kitchen 2Garbage disposal 2Dishwasher 1Washing machine 2Launtry Tray 3
Residential Fixture Units
![Page 8: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/8.jpg)
Total Dynamic Head Definition:Total Dynamic Head is a compilation of resistance to static head and the flow through a constrained device or devices at a given flow rate. Also known as TDH.
Components:Static Head ‐ Vertical lift to the point of discharge (POD)Horizontal run – Distance in horizontal vector to (POD)Minor Losses – Resistance through pipe, fittings, and valves.
Formula: Vertical Lift + (Horizontal Run + Minor Loses)
www.SSPMA.org 8
![Page 9: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/9.jpg)
TDH Calculations• Formula: Vertical Lift + (Horizontal Run + Minor Loses)
• Horizontal + Minor losses call “Equivalent Length”
• Vertical Lift – Lift in feet from discharge point of device to gravity
• Equivalent Length starts with flow rate from system capacity.
• This will be combined with Pump capacity to identify the right pump
www.SSPMA.org 9
![Page 10: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/10.jpg)
Solids Handling RequirementsTwo types of sewage Pumps
Solids handlingGrinders
A solids handling pump is designed to pass a specific spherical solid intact.This requires the flow and pipe diameters meet the pumps requirements.A sewage pump will pass a 2” spherical solid. This requires a minimum velocity based upon pipe diameter.
www.SSPMA.org 10
![Page 11: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/11.jpg)
Solids Handling Requirements
www.SSPMA.org 11
![Page 12: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/12.jpg)
Solids Handling Requirements
www.SSPMA.org 12
![Page 13: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/13.jpg)
Basin SelectionMaterials
PolyethyleneLimited to max 36” diameter and 36” deep
Fiberglass (FRP – Fiber Reinforced Polymer)Virtually unlimited in size
ConcreteUsually come in sections due to weightWeather and soil conditions can hinder install
www.SSPMA.org 13
![Page 14: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/14.jpg)
Basin SelectionSizing
Based upon diameters and depths18” = 1.1 gallons / inch depth24” = 2.0 gallons / inch depth30” = 3.06 gallons / inch depth36” = 4.4 gallons / inch depth48” = 7.83 gallons / inch depth60” = 12.24 gallons / inch depth72” = 17.63 gallons / inch depth
www.SSPMA.org 14
![Page 15: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/15.jpg)
Simplex / DuplexDefinitionSimplex – A single pump consisting of a pump and control in an application without a backup pump.
Advantage – lower costDisadvantage – no redundancy
Duplex – A dual pump system with a control that alternates the pumps and or allows for a simultaneous run of both units.
Advantage – RedundancyDisadvantage – Higher up front cost
www.SSPMA.org 15
![Page 16: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/16.jpg)
Sizing ExercisesAvailable assistance with sizing charts and data
SSPMA.org
www.SSPMA.org 16
![Page 17: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/17.jpg)
Sizing ExercisesApplication #1Residence with 2.5 bath pumping to a septic system
Vertical Lift to the septic tank 8’Horizontal run to the septic tank 150’Location of the pump – Basement of houseFittings and accessories:1 – Check valve1 – Gate valve5‐ 90 degree elbows
www.SSPMA.org 17
![Page 18: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/18.jpg)
Sizing Exercises
Fixture units from slide 8Bathroom group flush tank 6Bathrooms 2.5 fixture units 2.5 x 6 = 15 Laundry Tray = 3Dishwasher = 1Garbage Disposal = 2Total Fixture Units = 22
www.SSPMA.org 18
![Page 19: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/19.jpg)
Sizing ExercisesFlow rate from Slide 8
22 Fixture Units = Curve C ~ 10 gpmSince sewage pumps are 2” discharge, minimum flow is 21 gpm. Use 25 gpm as a safety factor.
Design point to identify the right pump is required for proper sizing.
www.SSPMA.org 19
![Page 20: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/20.jpg)
Sizing ExercisesFormula: GPM = 25
TDH = Lift + (Equivalent Length)TDH:Lift = 8’Equivalent Length:((Horizontal run + Minor losses) / 100 ) * Friction loss coef) Per SSPMA standards
www.SSPMA.org 20
![Page 21: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/21.jpg)
Sizing ExercisesEquivalent LengthValves and fittings have equivalent length of pipe coeff2” SizesCheck valve = 17.2’ Gate Valve = 1.4’90 degree elbow = 5.2’ Friction loss coefficient at 25 gpm in 2” PVC pipe = 1.3Per SSPMA standards
www.SSPMA.org 21
![Page 22: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/22.jpg)
Sizing ExercisesApplication #1FormulaTDH = Lift + ((Horz Run + Minor Losses) / 100) * Fric coeffLift + ((Horz Run + Check valve + (3 x Elbow) * Gate Valve)8’ + ((150’ + 17.2 + (3 x 5.2) + 1.4) * 1.3 = 8’ + ((184.2’/100)*1.3) = 8’ + 4.8’ = 12.8’ TDHDesign Point 25 GPM at 12.8’ TDH
www.SSPMA.org 22
![Page 23: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/23.jpg)
Sizing ExercisesApplication #1Size pump for design pointDesign point 25 gpm @ 12.8’ TDH’Design point must be under the pump / impeller curveLocate design point in middle third of the curve (when Possible).
This is the highest efficiency locationSaves energy, maximizes pump life cycle
www.SSPMA.org 23
![Page 24: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/24.jpg)
Sizing ExercisesApplication #1
www.SSPMA.org 24
![Page 25: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/25.jpg)
Sizing ExercisesRecommendations:• When replacing a pump, do not replace based upon
horsepower. • Different pumps apply horsepower and impellers
differently.• Ensure pump and supply voltage match.• Always replace check valve when pump replaced.• If float switches are used, understand how they operate.• Never put receptacles in septic risers.
www.SSPMA.org 25
![Page 26: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/26.jpg)
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.org 26
![Page 27: Sizing Guidelines for New or Replacement Sewage Pumps · Basin Selection Materials Polyethylene Limited to max 36” diameter and 36” deep Fiberglass (FRP –Fiber Reinforced Polymer)](https://reader034.vdocuments.us/reader034/viewer/2022042314/5f01b8357e708231d400b60e/html5/thumbnails/27.jpg)
.
Thank you For additional info go to:
www.SSPMA.org
www.SSPMA.org 27