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 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. When performing a vertical shaft alignment, the process will be different. Where flowserve has supplied only the bare shaft pump, the ex rating applies only to the pump. We have a vertical turbine pump having capacity of 20000cum per hour and pressure head 16. Pdf laseroptical alignment of shafts in rotating machinery is simple and. Good footplane must be established and maintained throughout the alignment procedure to avoid stressing the machine cases. For example, a machine running at 1800 rpm with 12 inch of spacer shaft length would allow a maximum offset of. Since then, a large amount of feedback has been accumulated. Fill out, securely sign, print or email your pump alignment form instantly with signnow. Proper alignment of rotating equipment has long been recognized as a. The skf tksa 11 is the first instrument on the market that uses inductive proximity sensors, enabling accurate and reliable shaft alignment to. The procedure for doing reverse dial indicator alignment is not a difficult one.
The most secure digital platform to get legally binding, electronically signed documents in just a few seconds. Startup procedure to avoid pump damage, it is very important to purge all air from pump before initial startup. 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. A support foot may pull the pump out of alignment if cap screws are tightened in the wrong order. Vertical centrifugal inline pumps installation and operation instructions series. 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. Figure 1 shows a typical vertical shaft hydroelectric unit as found in bureau of reclamation powerplants. Multistage centrifugal pumps vertical inline models. Installation, operation, and maintenance manual goulds pumps. Steps to successful installation of vertical circulating water pumps following the correct procedures for pump and motor alignment is necessary for reliable operation.
By william livoti weg power industry manager in usa 12012015. The proper shaft alignment procedure is to secure the driven equipment first because moving a pump, for example, would stress. Pdf a laser shaft alignment by ipspsds for rotary machine. Pump and motor preventative maintenance program thank you for this opportunity to provide your facility with a proactive preventative maintenance program. What does take to do each step in the alignment procedure.
The goal is to minimize any coupling strain, and ensure that the machine is alignable. As the demands on inhouse manpower increase, do more with less mentality, we are finding pumps and motors failing at alarming rates. Both can be removed easily and quickly for servicing without costly removal of the motor or pump from the piping. Before after measurement item vertical horizontal vertical horizontal unit angular misalignment 0. 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. 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. Aligning vertical pumps empowering pumps and equipment. Vertical condensate pump alignment the rigid or solid coupling makes taking meaningful alignment measurements virtually impossible. These procedures are in addition to the shortterm procedure.
Helical gear box, helical gear reducer, helical reduction gearbox duration. 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. Standard industry norms for alignment tolerances are cited in table 1. The 10 steps outlined in this article reflect modifications. In most cases, the vertical motor is mounted to a nema cface adaptor. To avoid small misalignment in the vertical direction first support from rotary equipment nozzle is used either spring support or adjustable type support.
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. I want to know how alignment of pump shaft is done with motor shaft. Vertical shaft hydrounits description to better understand the alignment process, it is important to understand the basic construction of vertical shaft hydrounits. Connection procedure alignment of process piping with.
Shaft alignment is an important technique during installation and maintenance of a. When aligning a cold unit, see the cold settings for vertical parallel alignment table. Proper alignment is the largest factor in determining the life of bearings, seals and couplings. Use this stepbystep guide to fill out the pump alignment form swiftly and with ideal precision. 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. Machine data stationary s machine movable m machine.
Rotate the pump shaft by hand to mix the antifreeze. The advanced tools of the editor will direct you through the editable pdf template. Empty water inside the pump casing, suction line and discharge line. This list contains all the items that should be checked.
Easy vertical shaft alignment with vertisweep by pruftechnik. This is what makes pump systems interesting, there is a million and one applications for them. 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. Packing rings adjusted too tight loosen packing rings to release gland pressure. The inclinometers in a laser alignment system work against gravity in the horizontal plane for a typical horizontal shaft alignment. Alignment check methodology for rotary equipment using.
Table of contents the importance of shaft alignment 1 shaft alignment. If space limitations dictate, pump may also be mounted. Now the shaft alignment measurement procedure can begin. 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. A practical guide to shaft alignment plant services. Vertical turbine pumps installation double casing vpc. 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. Here is the process for aligning a verticallymounted cfaced motor as shown on a vertical alignment demonstrator. Ensure adequate lubrication flow per peerless pump recommendations 7.
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. Agnee gear motors, gear boxes and 3d printers 9,733 views. 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. Shaft alignment report laser alignment, ultrasonic. Alignment report hung seng huat engineering product co. Securely fasten casing to mount surface at all four mount holes to avoid tipover of pump. Steps to successful installation of vertical circulating.
Most manufacturers align the pump and motor before they are shipped. Easylaser is used to align pumps and mo tors for all. Clean the pump casing and impeller by jetting clean water for a short time. At this diameter the maximum allowable gap would be. Rotating equipment alignment methods and training youtube. After the final tightening, please verify the alignment. Special circumstances of alignment installation anomalies. Vertical turbine pumps vtps centrifugal pumps english 71569224 10 page 4 of 76 1 introduction and safety 1. The motor flange and adapter flange utilize a grooved joint rabbet joint.
Pdf reports can be generated and directly saved from the system onto a usb stick. Armstrong series 4300 split coupled vertical inline pumps are available with two mechanical seal arrangements. The initial version of this procedure was published several years ago by me. Flowserve products are designed, developed and manufactured with stateoftheart technologies in. 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. 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. How to do the alignment for vertical pumps with motor. The americanmarsh vertical turbine pump is a vertical, multistage turbine centrifugal pump. 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. How to set horizontal or vertical alignment text in pdf.
Click to download the upgrade package zip file, 47mb. The way to complete the online pump alignment form on the internet. Pump alignment form fill out and sign printable pdf. Start a free trial now to save yourself time and money. Pdf basic shaft alignment workbook for industrial rotatin. Install coupling and check for rotational freedom of drive train if. Read all instructions in this manual before operating pump. In practice, proper alignment is difficult to achieve without using alignment equipment such as dial indicators or laser alignment tools. 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. Facilities instructions, standards, and techniques volume. 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. Update your shaftalignment knowledge peerless pump. Our alignment software is used for preparing, analyzing, archiving measurement files and printing professional reports.
Pump out of alignment or shaft bent check for overall pump concentricity, remove and straighten bent shaft, consider replacing bent shaft 5. 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. How to align vertical shafts with the vertisweep measurement mode. Shaft misalignment is responsible for as much as 50 percent of all costs related to rotating machinery breakdowns. No mat ter what method of alignment is used, the dial. Machine type pump motor vertical angle horizontal angle horizontal offset. 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. Here you can download the pdf template of the tksa 20 shaft alignment report, which can be used for documenting of your alignment activities. Proper alignment of the pump shaft with the driver can reduce vibration. 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. An article alignment check methodology in piping stress analysis using caesar ii few articles related to pumps. For maintenance personnel in drinking water and wastewater.