This article discusses factors that contribute to good centrifugal pump performance. For tipping and less demanding applications hyva offers a wide range of gear pumps. Maintenance of the drive should be carried out according to the drive manufacturers instructions. Pumping nonlubricating liquids is tantamount to running the pump dry. Worn pump bearings pull pump and inspect for bent shaft, straighten bent shaft, replace wear ring, remove any abrasive material, adjust impeller setting per peerless recommendations 8. Offers cost savings and energy savings by increasing the pump availability and reliability coefficients for pumps the time to maintain the pump set maybe predicted and planned more accurately and in a qualified manner in line with predictive and planned maintenance strategies. The stationary element which includes a casing, stuffing box or seal cavity and bearings. High efficiency pressure balanced bearing blocks assure maximum efficiency under all operating conditions. For high pressure and long continuous operation, hyva strongly recommends a high performance and high efficiency hyva piston pump. Maintenance and repair of gear pump test rig irjet. The working principle of the external gear pump is illustrated in figure 1.
You can say that both of them are must and essential part of this pump. Bronze rotary gear pumps installation, operation, and maintenance instruction introduction congratulations for choosing an oberdorfer pump, the industry standard for quality since 1890. Congratulations for choosing an oberdorfer pump, the industry standard for quality since 1890. The pumping gears are of equal size and are the only two moving parts in the pump, which promotes longer life suction. The gear pump is a precision machine with extremely tight fits and tolerances, and is capable of working against high differential pressures. Preventative maintenance most of the maintenance needed for a moyno pump is based on lookfeel yearly maint. These two gears are important and only moving parts in this pump. Operating problems in a centrifugal pump which can cause damage to the centrifugal pump can be either hydraulic or mechanical. Clogged impeller or foreign material in pump disassemble pump, inspect and remove foreign material, reassemble and set impeller with correct lateral settings 9. Gear pump working, construction, maintenance marinersgalaxy. Gear pump maintenance, stainless gear pumps, hydraulic gear pumps, chemical gear pumps, internal gear pumps, miniature gear pumps, small gear pumps, mumbai, india. Faulty or dirty flow control or other feed related valve. By david holland and ronald burg, mahans thermal products.
As with any pump, proper operation and regular maintenance are vital to reducing costly pump repairs and maximizing pump efficiency. Pump and motor division chemnitz, germany 2 heavyduty pumps and motors table of contents series pgp, pgm. General pump inspection and maintenance schedule packaged pump systems any additional inspections, maintenance, or tests required by nfpa standards for fire pumps are excluded. When using a gear pump a pressure relief valve must be fitted to protect the pump if deadheaded against a closed valve or blockage. If the pump needs to be opened to do this, ensure that the pump and motor are switched off and cannot be turned on accidently eg. The book focuses on the main condition monitoring techniques particularly. When lifting, install check valve on suction line to keep flooded suction. Pumps are available with bronze bearings and grease fittings or with carbon bearings which require no lubrication. The suction lift is limited by fluid vapor pressure or by low viscosity. This bulletin illustrates the mechanical seal which is standard in the catalog pump. The article has been written keeping in mind the level and interests of students and the beginners in operation. Construction bronze rotary gear standard pump housings and helical gears are made of top quality bronze.
Small gear pumps usually operate at a speed between 1,700 rpm and 4,500 rpm, and larger models most often. The driver gets the drive from external means like through main engine or electric motor. Below are helpful tips for operating your gear pump and ensuring it achieves a long operating life through regular maintenance. This low maintenance pump can transfer a wide array of fluids and fluid viscosities for spraying, recirculating, cleaning, and fluid transfer applications. As discussed in our ebook, 36 ways to kill your pump, reactive maintenance accounts for unplanned equipment downtime and increased costs. Application flexibility valve capabilities and common inlet multiple pump. Maintenance and troubleshooting of progressing cavity pumps. This checklist incorporates all range of motors equipment. Gear pump operation and maintenance maintenance world. Group 2 gear pumps technical information group 2 gear pumps technical information p101 000 high quality case hardened steel gears with superior surface finishing pressure compensated bearings made of antifriction alloy ptfe bronze based bushings for long life and high performance various shaft options including. Review different pump types commonly used understand the difference between centrifugal. Gear pumps are often used in pumping relatively viscous liquids, such as some viscous liquid hydrocarbons, liquid fuels, lubrication oil pumping in machinery packages, hydraulic units and fluid power transfer units. Jul 17, 2017 preventive maintenance checklist for centrifugal pumps to guarantee an efficiently performing centrifugal pump that provides service with minimal repairs and shutdowns, institute a sound preventive maintenance program. Gear pump training industrial pump maintenance and.
Absorb pressure spikes operate as an extreme safety device the only time the relief valve should open is when the pressure rises above the compensator setting. This guide includes information on model codes, performance data, installation and maintenance and more. The gpm of the fixed displacement pump can not be varied. Troubleshooting and preventive maintenance of hydraulic systems. Disconnect the intermediate column from the steering gears input shaft. The prv can be piped back to the suction side of the pump or into the supply tank. Gear pump operation operate close to the maximum rated speeds. Mechanicalmisalignment, sticky, warped, or binding ways, b ent bracket or other mechanical failures. The pump casing guides the liquid from the suction connection to the center, or eye, of the impeller. Bronze rotary gear pumps installation, operation, and. Read this manual carefully to learn how to safely install.
Troubleshooting guide continued troubleshooting guide part 2 problem possible cause corrective action rapid pump wear abrasives in fluid install suction strainer. Gear pumps make good chemical additive dosing pumps provided material compatibility issues are addressed. Ghs series om04383 introduction page i1 introduction thank youfor purchasinga gormanrupprotary gear pump. As you can see that, gear pump consists of the two gears, one is the driver and another is the drivein. Pump maintenance repair brian trombly mo droppers cummins bridgeway, gaylord, mi the basic centrifugal pump consists of two main elements. The owner of the motor is responsible for ensuring all required maintenance is performed and properly documented. Installation, operation, and maintenance instructionbronze. Working mechanism of a centrifugal pump a centrifugal pump is one of the simplest pieces of equipment in any process plant. The gear pump learning system 95pm1f covers the function, operation, installation, and maintenance of the versatile gear pump. Maintenance and service manual selfpriming internal gear. Gear pump manual original instructions albany pumps.
All content contained herein is subject to change at the companys discretion without notice. If high viscosity fluid is supplied, install a gate valve or other lowresistance valve on the suction side. The symbol used in the table below indicates that the action indicated may not be applicable to a specific pump of a particular type. Installation, operation, maintenance user instructions user instructions 71569246 2167be1 external gearex user instructions english. A drive gear that is driven by a motor rotates an idler gear in the opposite direction. Gear pump division kings mountain, north carolina usa 2. Maintenance series 4195 pumps are designed for long, troublefree service life under a wide variety of application conditions with a minimum of maintenance.
Properly selected, a gear pump will be more reliable and less maintenance intensive handle solvents, hot liquids and many. Creating predictive and preventive maintenance plans for pumps. Also in rotary pump standards in secure pdf description more details scope of standard. The purposes of a relief valve in a pressure compensating pump system are. Adjust packing should drip 25 times per minute lube packing typically 23 pumps per week. Take temperature readings at the pump, pump case, and various valves to. This book shows how condition monitoring can be applied to detect internal degradation in pumps so that appropriate maintenance can be decided upon based on actual condition rather than an arbitrary time scales. Check level, color, quality and cleanliness of fluid and act accordingly. Rotary gear pumps are positive displacement pumps and must be provided with some sort of pressure protection. The fluid is also forced into the discharge line by the meshing of the gears.
Gear pump maintenance, stainless gear pumps, hydraulic gear. A gear pump is a kind of rotary pump and is defined as a positive displacement pump. Pump maintenance michigan water environment association. Preventive maintenance checklist for centrifugal pumps. Plug the return line and cap the return port of the gear with high pressure fittings 3. Disconnect return line figure 1 from the steering gear. Small gear pumps usually operate at a speed between 1,700 rpm and 4,500 rpm, and larger. For maintenance and inspection of the shaft seal part, be sure to check the lubrication oil list shown in the delivery diagram. Troubleshooting and preventive maintenance of hydraulic.
The advantages regular monitoring of the pumps are no dismantling of the pump is necessary. Predictive maintenance of pumps using condition monitoring by raymond s. Troubleshooting and preventive maintenance of hydraulic systems learning to read the signs of future system. Gear pump maintenance, stainless gear pumps, hydraulic. What to look for in centrifugal pump maintenance salvina. Preventive maintenance checklist for centrifugal pumps to guarantee an efficiently performing centrifugal pump that provides service with minimal repairs and shutdowns, institute a sound preventive maintenance program. Gearbox maintenance tips introduction gearboxes are essential devices found everywhere in industrial manufacturing facilities, providing even distribution of power and torque wherever needed to fuel manufacturing productivity and profits. A gear pump uses two meshing, toothed cogs to force water from the inlet of the pump through to the outlet. Hydraulic gear and piston pumps hyva we move your world. The rotating element which includes an impeller and a shaft. Actions required only for specific pump types are so noted. General pump inspection and maintenance schedule split case pumps excludes motors, engines, gear drives, vfds, and controls.
Learn more about eatons external gd5 series gear pump. Tuthill magnetically coupled external gear pumps operate by moving fluid between two spur or helical type gears see figure 3 below. Despite how ubiquitous gearboxes may be, its easy to overlook their repair needs. Remove the dirt and water seal from the steering gear. Consult the maintenance manual before dismantling or performing maintenance work.
In the first category hydraulic, a pump may fail to deliver liquid, it may deliver an insufficient capacity or develop insufficient pressure, or it may lose its prime after starting. Installation, operation, maintenance user instructions user instructions 71569246 2167be1. The liquid is carried between the teeth and the case to the opposite side of the pump. Periodically top alignment of the pump and motor should be checked. Gear pumps use toothed gears turning inside a close tolerance housing to drawin liquid and then. Hyva pumps are manufactured and available in several options. Gear pumps are the most popular type of positive displacement pump. Figure 1 is a simplified diagram of a typical centrifugal pump that shows the relative locations of the pump suction, impeller, volute, and discharge. Predictive maintenance of pumps using condition monitoring.