Before you start this procedure, make sure that the dial indicators are properly attached for measure. Easy vertical shaft alignment with vertisweep by pruftechnik. Shaftalign shaft alignment system for beginners pruftechnik. 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. It is recommended to correct the vertical alignment, the first. 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. The rimface method is recognized as the oldest method of shaft alignment. Oct 01, 2012 the inclinometers in a laser alignment system work against gravity in the horizontal plane for a typical horizontal shaft alignment. Here is the process for aligning a verticallymounted cfaced motor as shown on a vertical alignment demonstrator. Produce pdf reports directly from the display unit and save to usb. How to align vertical shafts with the vertisweep measurement mode. Proper alignment is the largest factor in determining the life of bearings, seals and couplings.
He was replacing bearings on the same centrifugal pump in his lift station again and again. Visually check coupling, pipehangers, base bolts, coupling spacing etc. If any pressurecontaining device is overpressurized, it can explode, rupture, or discharge its contents. Our alignment software is used for preparing, analyzing, archiving measurement files and printing professional reports. Installation, operation, and maintenance manual goulds pumps. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. Shaftalign os3 is easily extendable through the activation of powerful options as the alignment requirements grow. There is a definite relationship between the amount of mis alignment and time between failures. Ensure adequate lubrication flow per peerless pump recommendations 7. Shaft alignment training course ppt presentation and machine. The main difference in aligning a vertical cface pump and traditional alignment is this.
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. One specific component that has been a major topic of discussion is the circulating water pump. Vertical shaft hydrounits description to better understand the alignment process, it is important to understand the basic construction of vertical shaft hydrounits. Before aligning, the pump and motor base should be level on a pad and properly grouted. Laser alignment is an essential component of a viable maintenance. Graphing procedures may be applied to both the vertical and horizontal planes. Update your shaftalignment knowledge peerless pump.
Vertical centrifugal inline pumps installation and operation instructions series. Pdf basic shaft alignment workbook for industrial rotatin. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or reference to the manufacturers of the machinery. The list of pump failure conditions mentioned above is neither exhaustive nor are the conditions mutually exclusive. Many of these plants are approaching 40 years old and require equipment refurbishment or component replacement. 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. Vertical centrifugal inline pumps tailor made pump solutions. Even before he saw the pump, he could hear the sound of grinding bearings from outside the. Pump out of alignment or shaft bent check for overall pump concentricity, remove and straighten bent shaft, consider replacing bent shaft 5. Pdf reports can be generated and directly saved from the system onto a usb stick. A practical guide to pulley alignment plant services. 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.
Oct 08, 2017 shaft alignment is the process of aligning two or more shafts with each other to within a tolerated margin. Listed below are descriptions of some of the components most closely associated with the unit alignment. The purpose of this document is to provide the reader with enough information to align a vertical shaft hydrounit within acceptable limits. Now the shaft alignment measurement procedure can begin.
How to do the alignment for vertical pumps with motor pump. The procedure for doing reverse dial indicator alignment is not a difficult one. Model vit installation, operation, and maintenance 3 introduction and safety safety warning. If installation requires another configuration, please consult factory customer service for assistance. The alignment of misaligned shaft are done by using different types of shaft alignment methods which are mention below.
It is an easy, costeffective part of your preventive maintenance program. Installation and operation manual centrifugal pumps sections. Jun 21, 2018 a wastewater treatment operator called crane engineering with a problem. The alignment training is suitable for technicians undertaking machine alignment, coupling alignment, motor alignmnet, pump alignment, etc. We have a vertical turbine pump having capacity of 20000cum per hour and pressure head 16.
Vertical turbine pumps wet pit vtp double casing vpc installation operation e, s and a series vtps in wet pit and suction barrel designs maintenance ranging in sizes from 50 mm 6 in. Position the unit on the foundation and level the pump base, using metal shims, so that the pump shaft is in vertical alignment and the pump suction and discharge. Jan 16, 2017 in this video we will describe alignment of pump and motor alignment system, alignment tool, alignment machine, alignment chart, alignment problem, alignment using dial indicator,shaft coupling. Alignment monitoring and corrections of a turbine driven feed water pump.
Shaft misalignment is responsible for as much as 50 percent of all costs related to rotating machinery breakdowns. It is assumed that the gantry is square to the xaxis, all support equipment is in place and properly working, and all of the. Basic shaft alignment workbook preface w elcome to the introductory book on. An essential component of any successful alignment procedure is the. Vertical turbine pump vtp and driver alignment is critical for extending the serviceable life of the driver, pump bearings and mechanical seal assembly while also providing vibration free service of your installation.
This procedure is to be used as a guide for the initial system installation, or as a reference for optics replacement, or for re alignment if necessary. Since the pump shaft can not be turned when uncoupled and resting on the bottom, the laser readings were taken using the static measurement mode, which is a process that permits a reading to be taken in any cardinal or subcardinal position. Dec 01, 2002 historically, shaft alignment tolerances have been governed by the coupling manufacturers design specifications. How to do the alignment of shafts, compressors and. When performing a vertical shaft alignment, the process will be different. 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. 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. Dec 17, 2011 good footplane must be established and maintained throughout the alignment procedure to avoid stressing the machine cases. The operator must be aware of the pumpage and take appropriate safety precautions to prevent physical injury. The original function of a flexible coupling was to accommodate the small amounts of shaft misalignment remaining after the completion of a shaft alignment using a straight edge or feeler gauges. Steps to successful installation of vertical circulating. Shaft alignment procedure mantenimiento planificado. Our objective is to identify a simple shaft alignment procedure that can be. Where flowserve has supplied only the bare shaft pump, the ex rating applies only to 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. I want to know how alignment of pump shaft is done with motor shaft. Facilities instructions, standards, and techniques volume 21. Shaft coupling alignmentprocedurerim and facemethod 22. For maintenance personnel in drinking water and wastewater. Vertical turbine pumps installation double casing vpc operation. Pdf a laser shaft alignment by ipspsds for rotary machine. 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 goal of the alignment process is to create a straight line through the coupling. So to position the motor for proper shaft alignment, these two methods must be utilized. This manual does not cover vtps fitted with thrust bearing assemblies and vtps built for cryogenic. When the operators account manager visited in person, it was obvious something was wrong.
We cant align our vertical pumps since there is no adjustment due the machined fit between the electric motor and pump housing. The pipe should be targeted so as not to place strain on. How to do the alignment of shafts, compressors and couplings. Since the motor uses a cface flange, the motor is bolting axially into the flange. In most cases, the vertical motor is mounted to a nema cface adaptor. The party responsible for assembling the pump set shall. In isolation each strategy can help to reduce unexpected machine failure but taken together they form the hub. The pump is subject to this declaration of conformity as a standalone product. Nov 18, 2015 the power generation industry uses highflow, lowhead vertical pumps for circulating water in both fossil and nuclear power plants. Aligning vertical pumps empowering pumps and equipment. A practical guide to shaft alignment plant services. Shaft coupling alignmentprocedurerim and facemethod 2.
A guide to properly align and install vertical turbine pumps. Does alignment procedure for vertical pump differ from horizontal pump alignment in anyway. Machinery manufacturers published various shaft alignment guides for their specific. Prior to the actual alignment procedure, it is essential that. There are several steps which need to be taken for a successful alignment job. Installation,operation, andmaintenance goulds pumps. Professional measurement and alignment system for rotating machines.
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