The pump shall be manufactured for lubrication of the lineshaft bearings by the water being pumped. American standard specifications for deep well vertical. This type driver requires an adjustable coupling between the pump. There is essentially no pump shaft only a motor shaft. Minimum recommended line shaft size for short coupled pumps. Discharge heads discharge heads the discharge head functions to change the direction of flow from vertical to horizontal and to couple the pump to the system piping in addition to supporting and aligning the driver. Key factors to consider before applying a vertical turbine.
Impeller adjustment is performed on adjusting nut located on top of motor. Selecting a short coupled vertical turbine pump national pump. Pipe threads must be thoroughly cleaned and lubricated. The advantages of this pump will make one of the most general types of centrifugal pumps.
Provides external support for the entire pumping unit. For a pump with an overall length up to 30 feet 9 m. A split gland simplifies packing adjustment and replacement. It will also be noted in the bowl assembly data and limitation table that a j11hc has a 11116 diameter bowl shaft. The vertical inline pump helps fill in the gaps of pump gpm ratings.
In a vertical turbine pump, the shaft is attached to the driver usually an electric motor at the ground surface and to. The fisherpump vertical turbine multi stage barrel pump is a heavy duty double casing pump enclosed in a suction barrel. Its extraordinarily broad hydraulic coverage is well complemented by its versatility. The standard pump is an oil lubricated design consisting of a bowl assembly, discharge elbow and column, line shafting, shaft enclosing tubes, lineshaft bearings, tension nut assembly, oil reservoir with solenoid valve and fittings, and headshaft assembly for vertical hollow shaft driver. In a water flush system, the pump bearings and line shaft bearings are isolated from the pumped media. The discharge opening can be either plain end or flanged, depending upon requirements. Shaft series the calculated enduse application horsepower, as adjusted by the service factor, shall not exceed the horsepower rating of the connecting shaft at the applicable speed. The two main types of turbine pumps are vertical turbine pumps and submersible turbine pumps. External lubrication system vertical turbine pump enclosed shaft. Impeller adjustment made by using adjustable plate in the coupling. Misalignment data is collected by rotating the sensor on the offset fixture and the shaftsensor of the driver. Thus, this is all about the vertical pump, which is vertical. They obey the standards of iso international organization for standardization, asme american society of mechanical engineers otherwise api american petroleum institute efficient processes, and guarantee reliability.
The lower section of enclosing tube is attached to the diffuser bowl, and the upper section terminates in the surface elbowpedestal at the tension box. Aligns the pump with the driver which eliminates the need for flexible shaft coupling devices. Example results shown in millimeters vertical and horizontal corrections are made as. It would be really nice to know what you are trying to find out so that we know how best to answer you. Spacer may be removed for mechanical seal maintenance without removing the driver. We can deliver unitized systems that include the pump, driver, controls, piping and instrumentation.
Lubrication of the column shafts can be done either with the fluid it compresses or with the oil to be placed externally in the shaft casing. The turbine line shaft transmits torque from the pump driver to the pump bowl assembly and. Clean all faces and threads and inspect for damage or burrs etc. Peerless pump company vertical turbine fire pumps section. It is possible to have the same durability features with a vertical mount. The entire length of the line shaft is encased in an enclosing tube. Angular vertical misalignment occurs when the motor shaft is at an angle with the pump shaft, but both shafts still operate in the same vertical plane. The water supply for the fire pump shall be from a water well of style, dimension and water productivity as recommended in nfpa 20. Ec67760 how to adjust vertical turbine pumps for maximum. The vertical solid shaft driver must be supplied with special shaft and base flange tolerances.
The rotor shaft is solid and projects below the driver mounting base. Driver vertical solid shaft vss fixed or variable speed drives specified to customer needs and location data. Hollow shaft vertical pumps pump engineering engtips. Foundations for all installations must be adequate.
A vertical turbine pump can also experience excessive structural vibration of the discharge head and associated driver in the field, even though the driver has been shop tested with low vibration, and the rotating components were properly balanced. The vertical hollow shaft motor is designed specifically for turbine pump applications. How proper shaft sizes are determined have you ever wondered why various types of electric motors with the same hpkw ratings have different shaft diameters, or why some pump shafts are so much smaller than the shafts of the motors that d. Lift the assembly over the pump and connect shaft to pump shaft. Ec67760 how to adjust vertical turbine pumps for maximum efficiency. There may be many small parts such as line shaft couplings or hardware that are. Vertical turbine, wetpit pump product lubrication the vtp is a single casing, diffuser type, single or multiple stage vertical turbine pump designed for continuous duty in a variety of wetpit and deep well applications. Ec74760 how to adjust vertical turbine pumps for maximum efficiency h. The ins and outs of vertical pumps processing magazine.
Space for installing the pump present on the site 3. Following this offset relationship will yield an operating angle of degrees. Vertical turbine pumps find info and get quotes at pumpscout. Vertical pump nomenclature nidec motor corporation. Since the shaft in the example is 175 feet in length, then 1 3 4 times the stretch per 100 feet will give total shaft stretch. Adjustable coupling type a for vertical solid shaft driver. The pump shaft shall be of a582 grade 416 stainless steel, turned, ground and polished. Where are the vertical and horizontal type pumps used in.
The pump driver may consist of an electric motor, vertical gear, or steam turbine that incorporates a vertical solid shaft design mounted on the pump s discharge head. Selecting a vertical turbine pump information required from. From the catalog rating curves select the bowl assembly which will meet the customers requirements with respect to capacity and total dynamic head. The column pipe is manufactured with flange to correspond to the desired pump length.
The difference in the change in length between the shaft and column resulting from the thermal expansion and other forces is a significant factor in pump design and selection. So, it is worthwhile to take the necessary measurements on the top and on the bottom for vertical offset and also on each side for the. Selecting a vertical turbine pump information required. Vertical turbine pumps, suitable for mounting in a pit, are usually multi stage pumps with diffusers. Understanding the need for offset shaft alignment vibralign. When a driver is supplied, there will also be a nameplate on the driver. This could be the result of a reed natural frequency of the motor, head and foundation. The vertical pump mainly covers different configurations like submersible, double case, wetpit, solid handling, sump, and slurry. The driver, drive coupling, head shaft and mechanical seal are never shipped assembled to the pump to prevent. Install threaded coupling onto pump shaft screwing it on for onehalf its length 2 a. Shaft loss is the friction loss, measured in horsepower, between the shaft and its bearings. So mentioned long pump can be more vulnerable to high rpm, but there is no corresponding horizontal pump no need of long horizontal shaft in practice.
For a pump with an overall length up to 30 feet 9 m it may be convenient to install. The pump shaft extends through a tube in the center of the rotor and is connected to the driver by a clutch assembly at the top of the driver. Specific gravity is a relative term which expresses the fluids density with reference to fresh water at 62. Goulds vertical turbine pumps 7 adjustable coupling type a for vertical solid shaft driver, impeller adjustment made by using adjustable plate in the coupling. The pump shall be specifically labeled for fire service underground fire main system. Select the length of column and shaft to suit the overall length of the pump. The water supply for the fire pump shall be from a water well of style, dimension and. Date of manufacture the date of manufacture is indicated on the pump data plate. The turbine line shaft transmits torque from the pump driver to the pump bowl assembly. Discharge pressure and flow required at the outlet of the pump as both the. Thermal expansion in enclosed lineshaft pump columns. Horizontal vs vertical pump speeds industrial professionals. A guide to properly align and install vertical turbine pumps. The driver may be a vertical solid shaft electric motor, vertical hollow shaft.
Selecting a vertical turbine pump information required from client 1. The line shaft and pump bowl bearings used in this vertical spindle pump operate in pure water conditions at a temperature ranging between 30. When a vertical turbine pump stops, water flowing back down the column causes the pump to back spin. Ec74760 how to adjust vertical turbine pumps for maximum. Floway pumps excellent vertical turbine pumps solutions. Deepwell vertical turbine deepwell vertical turbine courtesy of the hydraulic institute, parsippany nj, the use of vertical turbine pumps for well water is common. Vertical turbine pump enclosed shaft works with its own external lubrication system for highly corrosive material handling. Dec 17, 2011 proper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability. Axial flow vertical turbine pumps vansan water technologies. Vesconite hilube bearings were manufactured and fitted. Selecting a vertical turbine pump national pump company. For long vertical pumps long shaft, impellersshaft system balancing may get unstable at high rpm, despite the intermediate shaft bearings. Vesconite pump bearings no swell, can run dry, longest. Aline pumps au offers the vertical turbine fire pump sets available in a range of sizes and suitable for multiple applications, including rainwater reuse.
Adjustable spacer coupling type as same function as type a coupling with addition of spacer. If your operating conditions ever change, always refer to the factory for. Thrust assembly elbows are available in both the above base or below base type. Canned pumps are also common in municipal water applications since the use of cans provides the designer with greater flexibility when designing a pump station. Api 610 11th edition specifies the tolerances in figure 1.
Startingstoping motors are selected based on run time motor with least amount of run time. Although fm listed horsepower ratings are shown at specific speeds, ppc drive. Vertical turbine solids handling pumps installation, operation and maintenance. The column section is furnished in parts not exceeding nominal length of 3. Check the driver horsepower and speed indicated on the driver nameplate, and the horsepower and speed indicated on the pump nameplate located on the discharge head to be sure they agree within 2%. Because the pump is acting as the driver, there is very little danger of unscrewing shafting, but if the pump is started during back spin, it is likely to break shafting, loosen collets, or damage the motor. The maximum shaft runout and shaft to driver face perpendicularity of 0. Key factors to consider before applying a vertical turbine pump.
The mechanical design of a vertical inline pump vip is the least expensive the pump impeller is attached to the motor shaft, and is cantilevered in the pump casing. Since we didnt want the coupling and shaft stiffness to influence the alignment readings. Driver the propeller pump is driven by solid shaft motors or vertical hollow shaft motors. Capacity to 35,000 gpm 7,950 m3hr setting to 100 ft 15.
For long vertical pumps long shaft, impellers shaft system balancing may get unstable at high rpm, despite the intermediate shaft bearings. 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. The discharge nozzle of each pump is 40inch asme b16. The electric motor shall be vertical hollow shaft or vertical solid shaft, three phase 50 or 60 hz, a nonreverse ratchet, pbase, squirrel cage induction design. Selecting a short coupled vertical turbine pump step 1 bowl selection. The lead and lag pumps are cycled on and off based on motor run times. Directs the flow to the desired direction with above or below the floor discharge. Specific gravity is a relative term which expresses. Pump genius software monitors system pressure or flow and references low high set point and run time requirements. Pumpdesigner has given a good overview on the use hollow shaft motors which are used on line shaft vertical pumps, however on reading your reply it seems that you have something else under consideration. The lineshaft is supported throughout its length by means of bearings which. Ec67760 how to adjust vertical turbine pumps for maximum efficiency h. Selection of the flexible connecting drive shaft shall be based on rating of the driver and not the pump. Series 480 vertical turbine 5 pump identification manufacturer americanmarsh pumps 185 progress road collierville, tn 38017 united states of america type of pump the americanmarsh vertical turbine pump is a vertical, multistage turbine centrifugal pump.
The driver and driven shaft centerlines, of your equipment, must intersect at the center of the drive shaft. The most common driver for a vtp is a hollow shaft vhs electric motor or right angle gear drive. Provides either a stuffing box or mechanical shaft seal to seal head from leakage around shaft. Angular misalignment between the driven and driver machine shafts is displayed on the results screen for both the vertical and horizontal planes. Lift the assembly over the pump and connect shaft to pump shaft coupling using antiseize compound on the threads. Seal materials shall be compatible with the liquid pumped. Sections are connected by flanges, and each pump train weight is more than 27 tons t. How proper shaft sizes are determined mro magazine. Vertical turbine industrial pumps open line shaft ols installation, operation and. They are engineered to meet or exceed international standards developed by api610, ansi, asme, hydraulic institute, and others. Angular horizontal misalignment occurs when the motor shaft is at an angle with the pump shaft, but both shafts still operate in the same horizontal plane. Therefore, specific operating instructions are not within the scope of this manual. Pumping water level is the vertical distance, in feet, between the datum and the water.
When mounted horizontally, this can create a larger footprint. Parallel misalignment can be considered as the distance between the driver shaft centerline and the pump shaft centerline at any given point along the length and this misalignment can happen in any plane. These pumps are extremely flexible because this pump can be built by one or many stages. Warson pumps, we are manufacturers of turbine type vertical. Jun 01, 2009 parallel misalignment can be considered as the distance between the driver shaft centerline and the pump shaft centerline at any given point along the length and this misalignment can happen in any plane. Pumping water level is the vertical distance, in feet, between the datum and the water level when the pump is operating. New dealer stock, factory direct pricing, in stock service, full factory.
The hsc pump is often connected to an appropriate driver by a coupling or drive shaft. Proper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability. The flow rate of these pumps ranges from 50 gpm30,000gpm. The pumping unit shall be designed and manufactured in accordance with the latest. The pump assembly is normally called bowl assembly and it consists of suction case, impellers, discharge bowls, intermediate bowls, discharge cas.
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