Close coupled pumps where the impeller is mounted directly on the motor shaft separately coupled or frame mounted where the impeller is mounted on a separate pump shaft supported by its own bearings. Stx mtx 5 8 3198 the model is based on 2 power ends and 4 hydraulic pump sizes. Different configurations guarantee reliable and efficient pumping processes. Pumps are the second largest used machinery in world and plays a vital role. This article is a note or manual for mechanical engineer where work as rotating engineer or where. It is common knowledge that twostage overhung pumps have a tarnished reputation for reliability.
Api 610 11th edition iso 709 2nd edition api oh2 overhung. Numerous sizes, hydraulics and material combinations are particularly well suited for. Split flow pumps api standard 610 and overhung pumps. Overhung, endsuction process pump flowserve corporation. This pump can either be an overhung type or betweenbearing type but is always a radially split case pump. Each pump is identified by its formal designation and accompanied by a fullcolor cutaway illustration. The api seal plan 1152 for the overhung type shows one stuffing box and one reservoir for overhung type and two stuffing boxes and reservoirs for overhung type, im having trouble visualizing it. The operating manual of any centrifugal pump often starts with a general. We appreciate the opportunity to provide you with this assessment. Global customers can easily find configurations to precisely match. The modules listed in the overview are linked to the corresponding pages.
Unlike rolled steel and c channel baseplates, the series e1510 baseplate provides a heavy duty saddle. Experience in motion overhung between bearings vertical chemical process asme ansi. The symbols shown at right are used to identify each pumps. Overhung pumps cpxv iso and api chemical sump pump. The overhung pump design is sufficient for research purposes with smallscale systems, but does not scale well to larger commercial power generation designs e. Refer to the pump data sheet andor the hydraulic calculation sheet for that pump. Keeping water and moisture out of overhung pumps is a problem.
Implement vendor final data in the project engineering documents. Bearing housing parts are interchangeable with hpx and hpxm components. Pump part and operation definitions, illustrated industry practices, enhanced family trees showing pump designations unique to each pump type, crosssectional drawings showing details of pump parts, explanation of the relevance of suction specific speed to different pump geometries, details on how these values affect performance and much more. The result is a safe and rugged overhung api process pump designed for a 20year life. Wartsila hamworthy centrifugal pumps dolphin range description vertical inline, singlestage, single double suction, overhung pumps with rigid coupling, radially split. Rotodynamic pump nomenclature and definitions secure pdf. Bb1 axiallysplit, betweenbearing pumps, bb2 between bearing radially split pumps, bb3 multistage axially split pumps, bb5 barrel multistage radially split pumps and overhung oh2oh3 process pumps. Pumpout vanes on the rear shroud also reduce thrust. Overhung impeller pump article about overhung impeller. Each pump is identified by its formal designation and accompanied by a full. We are committed to ensuring that the individuals whose details we hold understand our privacy practices.
We are a worldwide company dedicated to the design, manufacture, sales and service of pumping technology. How to combine pdf files into one document lifewire. Option for external bearingsflexible coupling on vertical single suction pumps. The guideline for l3d 4 is that as long as a pump is below the line of shaft stiffness it is following industry practice.
Close coupled vertical inline singlestage overhung pump oh5 designed to bs4082 class r. Overhung load adaptors for hydraulic motors male sae b 4 bolt pattern model hdc dimensions part number cylindrical taper hyd motor hyd motor sleeve roller roller adaptor shaft type part no. Machined diffuser technology the computer designed and. Overhung impeller pump article about overhung impeller pump.
These pumps are available in different designs to meet the requirements for chemical, api, slurry and solids handling processes, as well as industrial processes. Ohh and ohhl iso 709 api 610 type oh2 single stage end. This standard is for types, nomenclature, and definitions of rotodynamic pumps with radial, mixed flow, and axial flow impellers, as well as regenerative turbine, pitot tube, vertical diffuser, submersible motor deepwell and shortset pumps, commonly defined as vertically suspended rotor and vertical overhung impeller types that may be driven by vertical electric motors or. The nm 3196 is a horizontal overhung, open impeller, centrifugal pump that meets the requirements of ansi b73. A guide to flowserve pumps the purpose of this publication is to provide a brief summary of the hundreds of pumps which comprise the flowserve product line. Approval vendors documents before fabricating the pump. One solution is to fabricate a mandrel to balance the fan blade between the machine. Basic concepts of operation, maintenance, and troubleshooting part i introduction the operating manual of any centrifugal pump often starts with a general statement, your centrifugal pump will give you completely trouble free and satisfactory service only. The decision has to be made about how to mount the rotor in the balancing machine. This pump provides users with the important mechanical. This international standard is applicable to overhung pumps, betweenbearings pumps and verticallysuspended pumps see table 1. The compact vertical inline design reduces the need for a heavy fabricated baseplate reducing installation costs and saving space on site. A centrifugal pump whose impeller is mounted on the end of a shaft that overhangs its bearings explanation of overhung impeller pump. The impeller is mounted on the end of a shaft which is overhung from its bearing supports.
Dedicated global resources for design, drawings and site support. Industrial pumps, overhung pumps, multistage pump, end suction pump, slurry pump, pump condition monitoring, pump vibration monitoring, pump protection system, pump vms. The submerged hydraulically driven fire water lift pump is a single stage centrifugal pump of short stiff shaft overhung design. Distinguished by our quality, and ease of doing business, with our customers always as a. Centrifugal pump selection and application into the system foreword this article is a note or manual for mechanical engineer where work as rotating engineer or where concern to apply centrifugal pump into the system. Features and benefits heavyduty construction to iso 70api 610,9 latest edition, including carbon steel bearing housing assures maximum reliability and safety. Applicable engineering standards are listed along with performance. Accurate online measurement no manual measurement needed. The pumpworks 610 pump features short impeller overhang, and can be combined. The operating manual of any centrifugal pump often starts with a general statement. Pump division flowserves type m hard metal slurry pump is a horizontal, single stage, end suction design with a tangential discharge nozzle. The pump cannot suck on or draw the liquid into the pump.
This was the basis for the api standard 610, sixth and seventh editions, proscribing their use since january, 1981. The fan blade may be received mounted on the shaft, or without any shaft. Horizontal end suction, singlestage, single suction, overhung pumps closecoupled. Horizontal overhung centrifugal pumps, single stage, in. This portable document format \ pdf \ file contains bookmarks, thumbnails, and hyperlinks to help you navigate through the document. Basics concepts of operation, maintenance, and troubleshooting, part i. Some of the challenges are shaft machining and balancing. Piping andor fasteners used to anchor the pump to the mounting pads on the floor are excluded. First of all it was evaluated that there should be no extra vibration on the other overhung parts of the pump and then. Flowserve overhung pumps comply either with iso, asme or api standards. Simple constant speed synchronous motor driven pumps of both the overhung and centerhung. The list of pump failure conditions mentioned above is neither exhaustive nor are the conditions mutually exclusive. The sce is a heavyduty, single stage, overhung process pump, designed and built in accordance with the latest edition of api 610 oh2. What is new in api 610 11th ed iso 709 2nd ed hydrocarbon processing decem.
The sce is a heavyduty, single stage, overhung process pump, designed and built in accordance with the latest. Clause 8 provides requirements applicable to specific types of pump. Mechanical seal overall displacement unfiltered pump speedrpm peak to peakmils. The 3198 is a horizontal overhung, open impeller, centrifugal pump that meets the. Wartsila hamworthy centrifugal pumps dolphin range. Flowserve pump product portfolio flowserve corporation. Casing and cover sealing a flexitallic compressed spiral wound gasket ensures a tight and secure metal to metal sealing between casing and cover.
In particular, we want to make sure that we are respectful of your data protection preferences, and that you understand your data privacy rights. Esv751n04txc lenze ac tech smvector vfd drive inverter, 1 hp 0. To ensure maximum submergence under any operation conditions, the pump has an end suction design and is suspended in the water from the pipe stack. Esv751n04txc lenze ac tech vfd drive inverter valin. Applicable engineering standards are listed along with performance characteristics and key features. Centrifugal pumps for petroleum, petrochemical and natural gas industries. Gaining acceptance as alternative to single stage overhung pump.
Know and understand centrifugal pumps \ r i \ suction piping. Pump selection guide oil refining and gas processing we offer a full range of api 610 pumps to meet your demanding applications. The pmb and the mkiii air ejector systems consist of solenoid valves and a pressure switch that controls the starting of the pump automatically and ensures the pump is primed, with timer controlled in the starter panel. It is made of a fiber reinforced vinylester to handle severe corrosives. Safety and reliability we provide engineered solutions with true conformance to the latest api specifications including the stringent emissions containment per api 682. Centrifugal pumps for petroleum, petrochemical and natural. Distinguished by our quality, and ease of doing business, with our customers always as a priority.
The concept of the fluid being available to the pump is discussed in detail in chapter 2 of this book. The pump is powered by the diesel engine driven hydraulic power unit. Manufacturer of overhung pumps cpxv iso and api chemical sump pump, polychem vgrp engineered polymer overhung sump pump, ds overhung industrial process pump and fline end suction multistage industrial process pumps offered by flow serve india controls private limited, coimbatore, tamil nadu. Ohh and ohhl iso 709 api 610 type oh2 single stage.
Rej cz 1a cz 1b cz 2a cz 2b cz 3a cz 3b cz 3c cz 4a cz 4b cz 4c cz 5a cz 5b cz 5c cz 6a cz 6b cz 7 cz 8 humidify restaurant hospital warehouse. In addition, these pumps can be used when lots of air has to be moved such as with well point dewatering systems. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to. Sep 20, 2015 pump out vanes on the rear shroud also reduce thrust. Text headings in each module are linked to and f\ rom the table of contents for that module. Pump models are divided into five sections, beginning with overhung pumps and continuing through specialty designs. How to combine pdf files into one document how to magically make six pdfs turn into one document.
In the finder window, locate the second pdf file you. As in overhung centreline mounted pump only the foot of the pump remain in contact with the base plate and the rest of the portion of the pump is hung in the air. Using seals using flinger rings is usually the most effective way to protect bearings from moisture. Centrifugal pumps for petroleum, petrochemical and natural gas industries 1 scope this international standard specifies requirements for centrifugal pumps, including pumps running in reverse as hydraulic power recovery turbines, for use in petroleum, petrochemical and gas industry process services. Precision engineered pumps meeting rigorous customer requirements in a multitude of. Following is our report of initial findings and a summary of the work required. The fluid must be available to the pump with sufficient energy so that the pump can work with the fluids energy. Ohv and ohvl overhung vertical inline pumps iso 709 api 610 oh3. While closecoupled pump competitors offer optional longcoupled pumps to improve gearbox and bearing life, this comes at. Overhung, endsuction processing pump iso 709api 610 oh2 maximum mechanical and hydraulic design flexibility the erpn is the pump of choice for severe chemical, petrochemical, refining and heavyduty industrial service where full compliance with api 610 is not required. Itt goulds pumps is among the most widely recognized and respected brands in the. If l3d 4 exceeds the line by 20%, then the customer should seek justification from a pump manufacturer for its design. Company overviews goulds pumps itt goulds pumps is among the most widely recognized and respected brands in the global pump industry, serving customers in the oil and gas, mining, power generation, chemical, pulp and. In this paper, we have done analysis on centrifugal pump categorised as overhung.
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