Align before and after the pump and piping are bolted together. Oct 01, 2012 the inclinometers in a laser alignment system work against gravity in the horizontal plane for a typical horizontal shaft alignment. The procedure was to blend the liquids epoxy and hardener for 3 min and. Mount the indicator base on the driver coupling hub so that the indicator reads on the face of the pump hub. Before aligning, the pump and motor base should be level on a pad and properly grouted. Aim to have all soft foot readings within 2 mils thou. The procedure for doing reverse dial indicator alignment is not a difficult one. Alignment employ laser or reverse dial indicator technology to align pump and motor. Models with discharge flange drilled one size smaller than suction flange are available.
The process with rotalign pro is identical, except that the adjustment is monitored by observing beam movement in the coordinate display screen. Utilizing the soft foot function in laser alignment systems works well. A new centrifugal pump has been devised to handle twophase flow. H e a d p e r s t a g e m flow ratem3hr 2 4 6 8 10 20 40 60 80 100 1 182 4 6 10 20 40 60 80 100 200 400 600 800 visit our web site at. This wear is not severe but in order to bring the shaft back to the o. The alignment of the pump flanges to the connecting piping is called flange alignment.
It just depends on different features, some of them are. The performance curves given in the catalogue are valid for water whose density and viscosity are. How to correctly install and align an api 610 vs4 vertical sump pump coupling between the pump shaft and motor pump to minimise vibration when operating. It is the intent of these specifications to obtain complete and operable. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or. The proper shaft alignment procedure is to secure the driven equipment first because moving a pump, for example, would stress. Method statement for installation and balancing of chilled. Direct close coupled end suction pump the direct flange mounted motor is spigoted onto the bearing frame and eliminates the possibility of shaft mis alignment.
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. Alignment simple steps to accurate alignment its a long. Dpas to which this declaration refers, are in accordance with the following standard. Before starting the pump installation process mechanical or ac engineer to study the pump manufacturers written installation and alignment instructions. The installation procedure for the vertical glandless pump varies depending upon the site conditions and applications. Hold your eyelids apart forcibly with your fingers. 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. As additional security, a flexible coupling is also employed. Repeat this procedure for the 3 to 9 oclock direction. Where flowserve has supplied only the bare shaft pump, the ex rating applies only to the pump. The vertical glandless pump is simple in design and is. Where are the vertical and horizontal type pumps used in the.
When properly installed and when given reasonable care and maintenance, centrifugal pumps should operate satisfactorily for a long period of time. Generally, a vertical pump assembly consists of a pump, a driving motor on top and a foundation structure at the bottom to support the pump and motor assembly. In pursuit of that goal, vibralign invented its own method of correcting misalignment called vertizontal which allows for the vertical and horizontal adjustments to be made together in one pass, saving valuable time and ensuring accuracy the first time around. Procedure for assembling skid install the flexible coupling to the pump shaft and bearing pedestal shaft align shafts to within.
This procedure is to be used as a guide for the initial system installation, or as a reference for optics replacement, or for realignment if necessary. Tmea2skf laser shaft alignment alignment performed by. And you are correcting two angles, one for each coupling. Excessive bearing loading, leading to bearing failure in both the pump and motor. Precision alignment with no manual input of data and no graphical or. The pump shaft should now be centered in the stuffing box and in its guide bearings. How to install and align a pump and motor coupling on an. 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. When installing the pump and driver, experienced technicians will perform a rough alignment based on visual indicators.
Oct 17, 2015 is video me cri 2 series vertical pump ki alignment ko tight kar rahe he. Vertical centrifugal inline pumps tailor made pump solutions. Vibration wear energy usage proper alignment increases reliability. When properly installed and when given reasonable care and maintenance, centrifugal pumps should operate satisfactorily for. With spacer type couplings, a dial indicator should be used to obtain these readings. Ensure adequate lubrication flow per peerless pump recommendations 7. The amount of alignment correction at the motor can seem to be very large. The operator must be aware of the pumpage and take appropriate safety precautions to prevent physical injury. Model vit installation, operation, and maintenance 3 introduction and safety safety warning. There is a definite relationship between the amount of mis alignment and time between failures. To achieve good, repeatable results, prealignment steps must be done.
The impeller and diffuser type casing are designed to deliver the head and capacity that your system requires in the most efficient way possible. Basic shaft alignmenl workbook combining the side and top views f yjew. Aligning vertical pumps empowering pumps and equipment. The inclinometers in a laser alignment system work against gravity in the horizontal plane for a typical horizontal shaft alignment. Nov 10, 2016 vertical turbine pumps, suitable for mounting in a pit, are usually multi stage pumps with diffusers. The party responsible for assembling the pump set shall. There is a definite relationship between the amount of misalignment and time between failures. Shaft alignment is displayed on the labview control panel. This feature enables us to use the pump for intermittent duties for transfer of industrial effluent from a collection vessel to the treatment plant.
Now the shaft alignment measurement procedure can begin. Packing rings adjusted too tight loosen packing rings to release gland pressure. 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. With feeler gauge find obvious gaps and fill them with shims, taking care of any rough soft foot condition. Optimal foundation design of a vertical pump assembly. 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. Failure to achieve proper alignment, a condition referred to as misalignment, will result in increased pump vibration, decreased bearing life, and has the potential. The proper alignment of a vertical shaft hydrounit is critical to trouble free operation. Steps to successful installation of vertical circulating water pumps following the correct procedures for pump and motor alignment is necessary for reliable operation.
A practical guide to shaft alignment plant services. There are several steps which need to be taken for a successful alignment job. The readings obtained will tell you how far out of. In practice, proper alignment is difficult to achieve without using alignment equipment such as dial indicators or laser alignment tools. Another advantage of the vertical pump is that it saves valuable floor area and to some extent the pump is selfdraining one. Basic shaft alignment workbook preface w elcome to the introductory book on. Listed below are descriptions of some of the components most closely associated with the unit alignment. Machine type pump motor vertical angle horizontal angle horizontal offset thermal compensation stationary s machine movable m machine vertical offset offset 2. Introduction 8 model 3910 installation, operation, and maintenance manual condition action chemicals or hazardous fluids in eyes 1. By combining these three features of the xa pro, we were able to. Our vision is to build a digital community through websites, enewsletters, and social media channels that allows pump industry professionals to exchange ideas, news stories, product information, case studies, videos, event information and more. How to adjust vertical turbine pumps for maximum efficiency by h.
They also will ensure that all machine feet are in good footplane and have 0. Specify that bolting which connects pump to pipe must fit without force. Second edition, revised and expanded, john piotrowski. Vertical condensate pump alignment the rigid or solid coupling makes taking meaningful alignment measurements virtually impossible. 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. Fig 2 to check for angular alignment, insert a pair of inside calipers or taper gauge at four points at 90 degree intervals around the coupling. Empowering pumps is the information and connection hub for the global pump industry. The units are suitable for horizontal and vertical mounting and the back pull out design means the complete.
Here is the process for aligning a verticallymounted cfaced motor as shown on a vertical alignment demonstrator. The suction bell bearing is grease packed at the factory. Uneven wear of a mechanical seal, or machining of a shaft sleeve for packedtype pumps. Dynamic design verification ddv of vertical pump using. It is an easy, costeffective part of your preventive maintenance program. Discharge pressure and flow required at the outlet of the pump as both the. Many maintenance personnel have experience with aligning standard coupling configurations, such as a motor to a pump, but some are less confident when theyre asked to. Where are the vertical and horizontal type pumps used in. Goulds vertical turbine pumps 3 goulds vertical turbine pumpsev v pump bowl assembly the bowl assembly is the heart of the vertical turbine pump. It is assumed that the gantry is square to the xaxis, all support equipment is in place and properly working, and all of the. Pdf basic shaft alignment workbook for industrial rotatin. Keep this manual in a convenient location for quick reference. Cnlbx inline model cnvx vertical end suction model table of dimensions shows models with suction and discharge flanges alike.
Machine alignment for maintenance personnel in drinking water and wastewater facilities. Furnish, install, adjust, test, and start a vertical drypit nonclog centrifugal sewage pump with extended shafts and variable speed electric motors, complete as specified below. Verticallyoriented pumps are used primarily in municipal water, hvac, and power plant operations, although it is not uncommon to see small vertical pumps in many industrial applications. The shafts of the pump and drive unit must be closely aligned. This manual covers the installation, operation and maintenance of patterson pump vertical inline pumps. When performing a vertical shaft alignment, the process will be different. An essential component of any successful alignment procedure is the. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. If the pump is turning the wrong direction, reverse any two of the line wires at the motor in the conduit box or at the motor starter. The pipe should be targeted so as not to place strain on. The difference in a 15min alignment and an eighthour alignment is often correcting the soft foot. Before starting the pump the reservoir should be filled to the minimum level so as to completely sub merge the pump impeller housing in the liquid which assures priming of the pump. Alignment of vertical pumps empowering pumps and equipment. Space for installing the pump present on the site 3.
Pump out of alignment or shaft bent check for overall pump concentricity, remove and straighten bent shaft, consider replacing bent shaft 5. Gusher vertical end suction pumps with integral shaft is. Proper alignment is the largest factor in determining the life of bearings, seals and couplings. Dpnt and dpnm horizontal singlestage split case pumps, series. Direct close coupled end suction pump the direct flange mounted motor is spigoted onto the bearing frame and eliminates the possibility of shaft misalignment. Shaft alignment is the process whereby two or more machines typically a.
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. Additionally recommend strobe to combine ma chine rpm and belt speed to check for belt slip. A layout drawing should be approved and pumps should be installed in locations indicated making sure that there is sufficient access space for periodic maintenance, removal of motors impellers. Dpnl horizontal singlestage centrifugal pumps, series. Laser alignment is an essential component of a viable maintenance. Vertical centrifugal inline pumps tailor made pump.
Vibralign is committed to helping businesses use their resources more efficiently and effectively. In isolation each strategy can help to reduce unexpected machine failure but taken together they form the hub. The pump assembly is normally called bowl assembly and it consists of suction case, impellers, discharge bowls, intermediate bowls, discharge cas. Vertical pump with outside sealed ball bearing and flexible coupling. Sulek1 reasons for impeller adjustment fiftyeight percent of 114 irrigation wells tested by university of nebraska college of agriculture engineers used from l l j 3 to 2 times the amount of fuel required. The pump is a centrifugal, single stage closecoupled type. Some of the standard installation arrangements have been described below. 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. For maintenance personnel in drinking water and wastewater. The rotating machinery shafts will undergo elastic bending when vertical or. By william livoti weg power industry manager in usa 12012015. We cant align our vertical pumps since there is no adjustment due the. If any pressurecontaining device is overpressurized, it can explode, rupture, or discharge its contents.
Ec74760 how to adjust vertical turbine pumps for maximum. Standard industry norms for alignment tolerances are cited in table 1. 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. Steps to successful installation of vertical circulating. A guide to properly align and install vertical turbine pumps. It is not necessary to relubricate this bearing except when the pump is to be torn down for maintenance and the bowl assembly is to be disassembled.