Agnee gear motors, gear boxes and 3d printers 9,733 views. Empty water inside the pump casing, suction line and discharge line. Misalignment may account for over 50% of malfunctions in rotating machinery, leading to problems such as worn or broken couplers, vibration, and excessive wear of bearings, seals and wear rings. Pump alignment form fill out and sign printable pdf. For example, the only correct way to express shaft alignment tolerances is in terms of alignment conditions at the coupling, and we will describe several ways to do this. The ojt portion of a recent training class involved a large vertical floway pump driven by an 800 hp ge electric motor, rotating at 1200 rpm. Vertical inline design eliminates the need for inertia bases, housekeeping pads, flex connectors, and field alignment or grouting requirements vertical inline design minimizes space and pipe requirements. Machine type pump motor vertical angle horizontal angle horizontal offset. Before after measurement item vertical horizontal vertical horizontal unit angular misalignment 0.
Pumps and drivers are moving targets due to torque strains and thermal effects, so evaluation of these factors is an important step in pump shaft alignment. Use this stepbystep guide to fill out the pump alignment form swiftly and with ideal precision. Special circumstances of alignment installation anomalies. Click to download the upgrade package zip file, 47mb.
As the demands on inhouse manpower increase, do more with less mentality, we are finding pumps and motors failing at alarming rates. Easylaser is used to align pumps and mo tors for all. Steps to successful installation of vertical circulating. How to align vertical shafts with the vertisweep measurement mode. Startup procedure to avoid pump damage, it is very important to purge all air from pump before initial startup. In most cases, the vertical motor is mounted to a nema cface adaptor. Vertical condensate pump alignment the rigid or solid coupling makes taking meaningful alignment measurements virtually impossible. Figure 1 shows a typical vertical shaft hydroelectric unit as found in bureau of reclamation powerplants. The 10 steps outlined in this article reflect modifications.
I want to know how alignment of pump shaft is done with motor shaft. Shaft alignment is an important technique during installation and maintenance of a. After the final tightening, please verify the alignment. Start a free trial now to save yourself time and money. This means that instead of using traditional motor feet, the drive end of the motor bolts axially to a adaptor plate, which bolts to the top drive end of the pump. When this coupling is left connected and tightened, misalignment cannot be measured conventionally by rotating both coupled shafts, because no relative movement between the shafts is allowed to occur, as would be the case with a flexible coupling. Facilities instructions, standards, and techniques volume. Good footplane must be established and maintained throughout the alignment procedure to avoid stressing the machine cases. Vertical shaft hydrounits description to better understand the alignment process, it is important to understand the basic construction of vertical shaft hydrounits.
When aligning a cold unit, see the cold settings for vertical parallel alignment table. Most pump manufacturers and repairers recommend that when repairing damaged pumps, bearings should always be replaced irrespective of apparent condition, since it is easy to miss minor damage to the. How to do the alignment for vertical pumps with motor. Pump out of alignment or shaft bent check for overall pump concentricity, remove and straighten bent shaft, consider replacing bent shaft 5. Read all instructions in this manual before operating pump.
The skf tksa 11 is the first instrument on the market that uses inductive proximity sensors, enabling accurate and reliable shaft alignment to. Fill out, securely sign, print or email your pump alignment form instantly with signnow. Securely fasten casing to mount surface at all four mount holes to avoid tipover of pump. Shaft misalignment is responsible for as much as 50 percent of all costs related to rotating machinery breakdowns. If, on the other hand, you update your knowledge of shaft alignment techniques and acceptable alignment tolerances, you might be on the way to becoming more reliabilityfocused. You may have heard this in the pastwe cant align our vertical pumps since there is no adjustment due the machined fit between the electric motor and pump housing. Does alignment procedure for vertical pump differ from horizontal pump alignment in anyway. Add small amount of antifreeze inside the pump casing if it is not possible to empty it completely. The goal is to minimize any coupling strain, and ensure that the machine is alignable. Pdf a laser shaft alignment by ipspsds for rotary machine. Connection procedure alignment of process piping with. How to set horizontal or vertical alignment text in pdf. In household systems, friction can be a greater proportion of the pump energy output, maybe up to 50% of the total, this is because small pipes produce higher friction. This list contains all the items that should be checked.
The advanced tools of the editor will direct you through the editable pdf template. Shaft alignment by dial test indicator dti horizontal alignment parallel shaft alignment by dial test indicator dti vertical alignment angular pump motor the indicators are zeroed on the top and read at the bottom record the indicator reading and consider the sag compensation by subtracting it from the recorded reading move the motor to. The procedure for doing reverse dial indicator alignment is not a difficult one. Shaftalign os3 is easily extendable through the activation of powerful options as the alignment requirements grow. The proper shaft alignment procedure is to secure the driven equipment first because moving a pump, for example, would stress. Alignment report hung seng huat engineering product co. Multistage centrifugal pumps vertical inline models. There are several steps which need to be taken for a successful alignment job. Helical gear box, helical gear reducer, helical reduction gearbox duration. Now the shaft alignment measurement procedure can begin. Proper alignment is the largest factor in determining the life of bearings, seals and couplings. For example, a machine running at 1800 rpm with 12 inch of spacer shaft length would allow a maximum offset of. Rotate the pump shaft by hand to mix the antifreeze. Armstrong series 4300 split coupled vertical inline pumps are available with two mechanical seal arrangements.
Proper alignment of rotating equipment has long been recognized as a. Since we didnt want the coupling and shaft stiffness to influence the alignment readings, the decision was made to remove the coupling bolts and rest the impeller in the pump bowl, treating the pump as a non. Pdf basic shaft alignment workbook for industrial rotatin. The purpose of this document is to provide guidance for vertical shaft alignment including when alignment procedures should be considered, and therefore, all information in this document is presented as plain text as required. Rotating equipment alignment methods and training youtube.
Both can be removed easily and quickly for servicing without costly removal of the motor or pump from the piping. The way to complete the online pump alignment form on the internet. Precision maintenance pre alignment check list following this checkoff list will ensure an alignment that will be kept when the machine is in operation and will last for an extended mean time between repairs. By william livoti weg power industry manager in usa 12012015. Produce pdf reports directly from the display unit and. Aligning vertical pumps empowering pumps and equipment. The ojt portion of a recent training class involved a large vertical floway pump driven by an 800 hp ge electric motor, rotating at 1200 rpm, utilizing a rigid coupling with a piloted fit. We have a vertical turbine pump having capacity of 20000cum per hour and pressure head 16. Steps to successful installation of vertical circulating water pumps following the correct procedures for pump and motor alignment is necessary for reliable operation. Shaft alignment report laser alignment, ultrasonic. When performing a vertical shaft alignment, the process will be different. Ensure adequate lubrication flow per peerless pump recommendations 7. The main purpose of shaft alignment is to make sure that the center line of the motor rotor shaft coincides with the center line of the driven machinery i. Easy vertical shaft alignment with vertisweep by pruftechnik.
Standard industry norms for alignment tolerances are cited in table 1. At this diameter the maximum allowable gap would be. Install coupling and check for rotational freedom of drive train if. Where flowserve has supplied only the bare shaft pump, the ex rating applies only to the pump. Pdf laseroptical alignment of shafts in rotating machinery is simple and. Alignment of pumps one of the most important parts of pump setup is making sure that the pump and the drive motor are carefully aligned. Here is the process for aligning a verticallymounted cfaced motor as shown on a vertical alignment demonstrator. What does take to do each step in the alignment procedure. Packing rings adjusted too tight loosen packing rings to release gland pressure.
The course covers several alignment methods common to motor shaft alignment like straight edge alignment, rim face alignment, reverse dial indicator alignment and laser alignment. Most manufacturers align the pump and motor before they are shipped. Vertical turbine pumps installation double casing vpc. The most secure digital platform to get legally binding, electronically signed documents in just a few seconds. Few more useful resources for you shaft alignment methodology for compressor and driver connection procedure alignment of process piping with rotating equipments.
This is what makes pump systems interesting, there is a million and one applications for them. Marsh follows for longterm storage of pumps is given below. No mat ter what method of alignment is used, the dial. The entire job file was then saved to a pc using rotalign pro commander software from which most of the illustrations in this report were obtained, and a color report was printed for the record. For maintenance personnel in drinking water and wastewater. Machine data stationary s machine movable m machine. Alignment procedure represented by resultant images a misalignment value represented bshims required for alignment cproper alignment shown d balancing of front and rear foot advertisement. Our alignment software is used for preparing, analyzing, archiving measurement files and printing professional reports. Clean the pump casing and impeller by jetting clean water for a short time.
If space limitations dictate, pump may also be mounted. Pdf reports can be generated and directly saved from the system onto a usb stick. Alignment check methodology for rotary equipment using. A support foot may pull the pump out of alignment if cap screws are tightened in the wrong order. Here you can download the pdf template of the tksa 20 shaft alignment report, which can be used for documenting of your alignment activities. To avoid small misalignment in the vertical direction first support from rotary equipment nozzle is used either spring support or adjustable type support. Proper alignment of the pump shaft with the driver can reduce vibration. An essential component of any successful alignment procedure is the. Many vertical pumps utilize a flexible coupling to transfer power from the motor to the pump, so proper shaft alignment is an important part of overall machine reliability. Thermal compensation stationary s machine movable m machine. The initial version of this procedure was published several years ago by me. Vertical turbine pumps vtps centrifugal pumps english 71569224 10 page 4 of 76 1 introduction and safety 1. Flowserve products are designed, developed and manufactured with stateoftheart technologies in. Installation, operation, and maintenance manual goulds pumps.
Table of contents the importance of shaft alignment 1 shaft alignment. Pump and motor preventative maintenance program thank you for this opportunity to provide your facility with a proactive preventative maintenance program. Vertical centrifugal inline pumps installation and operation instructions series. The motor flange and adapter flange utilize a grooved joint rabbet joint. Update your shaftalignment knowledge peerless pump. The inclinometers in a laser alignment system work against gravity in the horizontal plane for a typical horizontal shaft alignment. The americanmarsh vertical turbine pump is a vertical, multistage turbine centrifugal pump.
Since then, a large amount of feedback has been accumulated. An article alignment check methodology in piping stress analysis using caesar ii few articles related to pumps. Machine alignment for maintenance personnel in drinking water and wastewater facilities. Replace damaged shim packs with new, corrosion and. In practice, proper alignment is difficult to achieve without using alignment equipment such as dial indicators or laser alignment tools. A practical guide to shaft alignment plant services.
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