Centrifugal Pump Selection and Sizing ... Pump types being Considered • One and two stage centrifugal pumps - OH2, OH3/4, BB1, ... (for minimum flow calculation) -
CENTRIFUGAL PUMP SELECTION, SIZING, AND INTERPRETATION OF PERFORMANCE CURVES 4.0 PUMP CLASSES Pumps may be classified in two general types, dynamic and positive
Normal maximum stem torque for a properly applied and maintained valve is usually defined as: The ... exceed the maximum allowable valve input torque rating. If this possibility is a concern, your application ... A) Determine the type of Bettis actua
pumps. Pump sizing. Pump sizing involves matching the flow and pressure rating of a pump with the flowrate and pressure required for the process. The mass flowrate of the system is established .... can use curve- fitting equations and software such a
VACUUM PUMP SIZING The main function of a vacuum pump is to either handle air ... CALCULATION AND MEASURMENT OF INLET ... Vacuum Pump Sizing.doc
4 Pump Selection Guide PR services Reliability has no quitting time. Building on over 160 years of Goulds Pumps experience, PRO Services provides an array of services
Goulds Pumps presents this Pump Selection Guide to assist users in making an easy initial selection of the best pump for a particular service
hydromatic ® PUMP SIZING MADE EASY ... Step 4: Basin selection is best accomplished by relating to required SYSTEM CAPACITY as determined by the Fixture Unit method
1045 Control Valve Selection and Sizing 6 6.1 APPLICATION AND SELECTION OF CONTROL VALVES 1050 Introduction 1050 Orientation Table 1051 Control Valve Trends 1051
Standard Section Inquiry # Question Reply API Standard 520 - Sizing, Selection, & Installation of Pressure Relieving Devices Part I, Sizing & Selection
Standard Edition Section Inquiry # Question Reply API Standard 520 Part II - Sizing, Selection, & Installation of Pressure Relieving Devices Part II, Installation
FOREWORD API Recommended Practice 520, Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries, is the result of several years’ work by
Learning Outcomes •Identify the appropriate sections of NFPA 20 that apply to sizing and layout of fire pumps. •Identify the components of a fire pump and
water supply, booster, low lift, and high lift. For non-clog solids handling, a range of horizontal, vertical ... Pump Selection Guide 3 Pump Selection Chart
Abstract:- To achieve optimum centrifugal pump performance efficiency for liquid flow rates within the range of 4.32 cubic .... also provides a centrifugal pump stage selection guide based on flow rate, developed head and efficiency ...... Table 3: T
Released By: The Development Commissioner (SSI), Ministry of SSI, New Delhi Control Panel (for Single Phase Submersible Pump set) PRODUCT CODE (ASICC
Key Words. Dimensional similitude, Pump-pipe Life Cycle Cost; Best Efficiency Point, Best practice ... In this paper an excel program that can compute the operation point of any radial-flow pump. (centrifugal pumps .... Figure 1: Dimensionless radial
Download 172 sumur minyak, 60 sumur injeksi air, dan 10 sumur yang telah mati. Setiap sumur minyak ... mengakibatkan kerugian kinerja pompa ESP (electric submersible pump, pompa yang umumnya digunakan di PT Chevron .... Pump summary seri 338-56
Download 172 sumur minyak, 60 sumur injeksi air, dan 10 sumur yang telah mati. Setiap sumur minyak ... mengakibatkan kerugian kinerja pompa ESP (electric submersible pump, pompa yang umumnya digunakan di PT Chevron .... Pump summary seri 338-56
An expansion tank is required in a closed loop heating or chilled water HVAC system for two very ... The goal in sizing any expansion tank is to ... SIZING GUIDE. 18
Sizing Vacuum Pumps Pumping speed, or capacity, ... Assuming a vacuum pump and standard refrigeration circuit, connected by means of
Cell D43: If you are calculating for a known pipe diameter, select the “Specific Diameter” (radio button). Otherwise ... global settings in Excel, PIPESIZE also makes use of text formulas that are formatted according to a string within the .... Actua
Submersible Pump Sizing & Selection Presented by National Exploration, Wells & Pumps
How it works 1. Each combination of a chamber with an impeller is referred to as a “stage” or “bowl” 2. Each stage adds lift to the pump 3. The impellers are directly connected to the motor which creates flow. 4. As with all variable displacement pumps: flow rate is inversely related to the head pressure.
Pump Parameters Q: So what determines the necessary size of the pump? A: Flow rate & the amount of lift required. 1. Flow Rate: Make sure the aquifer is capable of supporting your desired flow rate. Do you have any pump test data? Why not? 2. Lift: Submersible pumps do not build pressure. They provide lift which overcomes head pressure, which is measured in feet. The head pressure against which a submersible pump operates is referred to as… TOTAL DYNAMIC HEAD (TDH)
Calculating Head TDH=Pumping Level + Vertical Rise + Friction Loss Vertical Rise
Pumping Level
Friction Loss
Static Water Level
Pump Depth
Well Depth
Draw Down
Submergence Pump
Friction Loss Q: How do I quantify friction loss? Friction Loss is a result of water’s resistance to flow. It’s affected by… •
Flow Rate
•
Pipe diameter and type
•
Number and type of fittings and valves
A: Darcy-Weisbach equation: Hf = ∆p/γ = f (L/D)x(V/2g) Or you can just look it up!
Pump Selection Q: So I know my flow rate and system TDH. Now what? A: Start shopping! 1. Pump suppliers publish pump curves for all the various models. Select your flow range…
Pump Selection Q: So I know my flow rate and system TDH. Now what? A: Start shopping! 1. Pump suppliers publish pump curves for all the various models. Select your flow range… 2. They also provide “easy selection charts” which are just pump curves for several models of pumps in a table format.
Worksheet: Peter Piper picked a peck of pickled pumps! How to size a pump: 1. What is required/desired flow (GPM) 2. Determine TDH 3. Consult Pump Curve(s) 4. Select wire size
How to size a pump: What is required/desired flow? 5 GPM
Determine TDH
First, let’s calculate friction loss!
Friction loss = total length X friction loss (straight pipe) factor + friction loss (fittings)
Friction loss = (_____’ X _____’/_____’) + (__’ X __)
Friction loss = _____’ + _____’
Friction loss = _____’ Head Pressure
Now we can calculate TDH!
TDH = pumping level + vertical rise + friction loss
TDH = _____’ + _____’ + _____’
TDH = _____’
Now that we know the TDH and required/desired flow, we can select a pump from a performance
curve.
Which 4” pump/motor combination will deliver 5 GPM at the calculated TDH?
___________________.
TDH=Pumping Level + Vertical Rise + Friction Loss 122’ ags.
How to size a pump: What is required/desired flow? 5 GPM
Determine TDH
First, let’s calculate friction loss!
Friction loss = total length X friction loss (straight pipe) factor + friction loss (fittings)
Friction loss = ( 922 ’ X
1.8 ’/ 100 ’) + ( 3 ’ X 2 ) (1.8’/100’)
Friction loss = 16.60 ’ +
.108 ’
Friction loss = 17 ’ Head Pressure
Now we can calculate TDH!
TDH = pumping level + vertical rise + friction loss
TDH = 500 ’ + 222 ’ + 17 ’
TDH = 739 ’
Now that we know the TDH and required/desired flow, we can select a pump from a performance curve.
How to size a pump: What is required/desired flow? 5 GPM
Determine TDH
First, let’s calculate friction loss!
Friction loss = total length X friction loss (straight pipe) factor + friction loss (fittings)
Friction loss = ( 922 ’ X
1.8 ’/ 100 ’) + ( 3 ’ X 2 ) (1.8’/100’)
Friction loss = 16.60 ’ +
.108 ’
Friction loss = 17 ’ Head Pressure
Now we can calculate TDH!
TDH = pumping level + vertical rise + friction loss
TDH = 500 ’ + 222 ’ + 17 ’
TDH = 739 ’
Now that we know the TDH and required/desired flow, we can select a pump from a performance
curve.
Which 4” pump/motor combination will deliver 5 GPM at the calculated TDH?
5S20-39DS (2 HP) .
Power Requirements Q: I’ve selected my pump. Am I done yet? A: Not quite. Your pump needs electricity to work. If there’s no power on site, you need to spec a generator: •
Most submersible pumps with 5HP or less are 230V/single phase. You’ll need 1.5kW per motor HP So…a 5HP pump needs a minimum of 7.5kW
You also need to spec the right power cable •
PVC flat-jacketed wire is the most common. It typically comes in 500’ rolls, but can be custom ordered to length.
•
The gauge of the wire is a function of your operating voltage and length.
Maintenance & Repair Q: It’s been two years and the bowls are worn out on my submersible pump. What do I do? A: Go back in time and design a better well screen and filter pack. A: Okay, you’ll have to pull the pump. Go ahead and hire someone with a well service rig. DON’T TRY IT YOURSELF! •
Well professionals have the right kind of equipment to pull a submersible pump without damaging the drop pipe, power cable and pump itself.
•
You don’t.
Maintenance & Repair
Q: My pump just stopped working. What happened? A: A lot of things could be the problem, but a common issue is motor burn-out. •
If water doesn’t flow around the motor housing on its way to the intake, the motor isn’t being cooled properly. This can lead to overheating.
•
Set your pump above your screen interval but below your dynamic pumping level so water comes from below.
•
If conditions preclude this design, consider a shroud.
