Measuring the actual current of the pump during operation can be used to preset the motor protection switch to protect the pump motor combination. A misaligned unit cannot only cause the premature failure of bearings, but through excessive vibration, cause wear and stress on other machine components as well. Numerous sizes, hydraulics and material combinations are particularly well suited for use in applications where uncompromising reliability and. Pipe hangers sized for the weight of pump, piping and fittings are the. 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. Pump alignment form fill out and sign printable pdf. 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. Aligning vertical pumps empowering pumps and equipment. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or. Shaft misalignment is responsible for as much as 50 percent of all costs related to rotating machinery breakdowns.
Tmea2skf laser shaft alignment alignment performed by. The operator must be aware of the pumpage and take appropriate safety precautions to prevent physical injury. Goulds vertical turbine pumps 3 goulds vertical turbine pumpsev v pump bowl assembly the bowl assembly is the heart of the vertical turbine pump. The shafts of the pump and drive unit must be closely aligned. Vertical pump with outside sealed ball bearing and flexible coupling. The most secure digital platform to get legally binding, electronically signed documents in just a few seconds. Introduction the proper alignment of a vertical shaft hydrounit is critical to trouble free operation. For example, the only correct way to express shaftalignment tolerances is in terms of alignment conditions at the coupling, and we will describe several ways to do this. Large vertical circulating water pumps 7 state of the art facilities test capacities up to 400,000 gpm 90,850 m3hour 8,000 hp 6,000kw capability, 300 psig multiple gear drives enhanced data acquisition systems facilitate technical evaluation all vertical pump configurations.
The advanced tools of the editor will direct you through the editable pdf. There is a definite relationship between the amount of misalignment and time between failures. 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. Vertical shaft hydrounits description to better understand the alignment process, it is important to understand the basic construction of vertical shaft hydrounits. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. Split coupled vertical inline pumps national pump supply.
With the coupling broken, mount the fixture to the stationary shaft or coupling hub. Ensure adequate lubrication flow per peerless pump recommendations 7. If, on the other hand, you update your knowledge of shaftalignment techniques and acceptable alignment tolerances, you might be on the way to becoming more reliabilityfocused. 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. 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. For maintenance personnel in drinking water and wastewater. The pipe should be targeted so as not to place strain on. Machine alignment for maintenance personnel in drinking water and wastewater facilities. Discharge head accommodates all types of driver configurations. Proper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability. Recently, the hydraulic institute has published new american national standards combining 1series, centrifugal pumps, and 2series, vertical pump, standards into a single 14series standards. If any pressurecontaining device is overpressurized, it can explode, rupture, or discharge its contents. Failure to achieve proper alignment, a condition referred to as misalignment, will result in increased pump vibration, decreased bearing life, and has the potential.
This current value can also be used to determine the proper electrical equipment such as variable frequency drive, main switch, wiring diameter etc. Vertical shaft alignment easy and intuitive alignment of vertical shaft machines with shimming support for different bolt configurations 1. Empowering pumps is the information and connection hub for the global pump industry. 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. For appropriate applications, the time, expertise and instruments needed to achieve precision alignment tolerances of less than 0. Dec 01, 2002 if the front foot of the motor is left 2 mils high and the back feet are left 2 mils low, the shaft alignment results will be as follows. Ideal for deep set applications where use of lineshaft pumps is impractical. Vertical inline pumps, being integral components of the pipework, eliminate need for inertia bases, inertia base springs, flexible pipe connectors, field grouting and alignment. The impeller and diffuser type casing are designed to deliver the head and capacity that your system requires in.
Complete unit is installed underground resulting in spacesaving, quiet operation. Vertical centrifugal inline pumps installation and operation instructions series. Alignment of vertical pumps empowering pumps and equipment. How to adjust vertical turbine pumps for maximum efficiency by h. Dec 17, 2011 proper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability. A guide to properly align and install vertical turbine pumps. Pump out of alignment or shaft bent check for overall pump concentricity, remove and straighten bent shaft, consider replacing bent shaft 5.
Vibralign is committed to helping businesses use their resources more efficiently and effectively. 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. They comply either with iso, asme or api standards, and guarantee reliable and efficient processes. This guide specification covers the requirements for vertical axialand mixedflow impellertype pumps, having a pump discharge diameter up to and including 2100 mm 84 inches, for flood control and hurricane protection projects. 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. The overall design as well as each individual part has been engineered, tested and proven for troublefree service and long life. The range of flowserve vertical pumps covers wetpit, double case, submersible, slurry and solid handling, sump and concrete volute configurations. The performance curves given in the catalogue are valid for water whose density and viscosity are. Machine train shaft alignment enables operator to align three connected machines, giving a complete overview of machine train alignment and allowing the operator to select stationary feet 2. 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. A practical guide to shaft alignment plant services. Each additional impeller increases the amount of head the pump can produce while the flow remains unchanged. 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. How to do the alignment for vertical pumps with motor pump.
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. Fill out, securely sign, print or email your pump alignment form instantly with signnow. The way to complete the online pump alignment form on the internet. How to do the alignment for vertical pumps with motor. Measuring the actual current of the pump during operation can be used to preset the motor protection switch to protect the pumpmotor combination. How to do the alignment for vertical pumps with motor artisi mechanical 11 jan 15. 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. Vertical centrifugal inline pumps tailor made pump. Long life low maintenance no lubrication, alignment. The alignment of the pump flanges to the connecting piping is called flange alignment. This wear is not severe but in order to bring the shaft back to the o. The impeller and diffuser type casing are designed to deliver the head and capacity that your system requires in the most efficient way possible.
Ufgs 35 45 01 vertical pumps, axialflow and mixedflow. Machine type pump motor vertical angle horizontal angle horizontal offset thermal compensation stationary s machine movable m machine vertical offset offset 2. Before aligning, the pump and motor base should be level on a pad and properly grouted. Start a free trial now to save yourself time and money. Cnlbx inline model cnvx vertical end suction model table of dimensions shows models with suction and discharge flanges alike. Vertical turbine pumps are often staged that is, designed with more than one impeller. Vertical condensate pump alignment the rigid or solid coupling makes taking meaningful alignment measurements virtually impossible.
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. Packing rings adjusted too tight loosen packing rings to release gland pressure. 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. Based on a modular design system, the ecpj pump provides dependable performance while offering maximum mechanical and hydraulic design. Models with discharge flange drilled one size smaller than suction flange are available. Sep 15, 2011 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. 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. Model vit installation, operation, and maintenance 3 introduction and safety safety warning. 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. Pdf reports can be generated and directly saved from the system onto a usb stick. So to position the motor for proper shaft alignment, these two methods must be utilized. Hi ansiaccredited american national standards are globally accepted for use by pump users of all industries.
For example, if a singlestage turbine one with only one impeller is designed to produce 1,000 gallons per minute gpm at 100 feet total. Vertical sump pump iso 709api 610 vs4 3 the flowserve ecpj is a rugged, singlestage vertical lineshaft sump pump designed to perform tough jobs reliably, under a variety of difficult conditions. Since the motor uses a cface flange, the motor is bolting axially into the flange. Reasons for alignment in most cases, the vertical motor is mounted to a nema cface adaptor. Shaftalign shaft alignment system for beginners pruftechnik. It is an easy, costeffective part of your preventive maintenance program. Lobee vertical sump pumps are designed for reliable operation over a wide range of installation conditions dependable performance is what you expect and get when you install a lobee sump pump. The main difference in aligning a vertical cface pump and traditional alignment is this. Update your shaftalignment knowledge peerless pump. If the front foot of the motor is left 2 mils high and the back feet are left 2 mils low, the shaft alignment results will be as follows. Figure 1 shows a typical vertical shaft hydroelectric unit as found in bureau of reclamation powerplants.
1135 109 1375 1417 147 1535 876 1637 993 1614 622 1618 674 237 1371 1247 1613 1598 1037 62 851 985 91 539 1378 1631 60 1358 1578 569 520 1091 629 995 855 370 1403