Achieving this mass flowrate requires a pump that can generate a. You will also spot hydro gear pumps, filters, seal kits, and transmissions with parts lookup. When cleaning or performing maintenance, please remove power from the drive. General gear pumps and gear motors technical information. The essential components of the ap100 series external gear pumps are an aluminum alloy body and two gearwheels, supported by plain bearings. Our gears are produced to precise tolerances with a true involute profile along the tooth thus maximising volumetric efficiency. Since the pressure is equal on both sides of the spool, the differential spring keeps the spool to the left.
The pl series is designed to meet the application needs of either a pump or a motor. Pumps are built to recognized global standards and customer specifications. The impeller of a typical radial flow pump and the flow through a radial flow pump are shown in figure 6. The larger pump of the combination is situated at the shaft end the drive side. Fristam fl 3 series sanitary helical rotary lobe pumps gentle handling transfer and cip in one pd pump the fl 3s unique threewing helical rotor design expands the application range of the fl positive displacement sanitary rotary lobe pumps. Precise by design, they deliver accurate and repeatable performance, a smooth flow and a pressure up to 18 bar 260 psi. A gear pump is a kind of rotary pump and is defined as a positive displacement pump. Placing a strainer, screen or filter on the suction side of a pump is not a simple yes or no question. Issue 5 section 1 standard gear pumps to view a gear pump, please click on the name below or use the bookmarks in your pdf software. Internal gear pump overview internal gear pumps are exceptionally versatile.
External gear pump series g azpg22 fixed pumps v 22. While they are often used on thin liquids such as solvents and fuel oil, they excel at efficiently pumping thick liquids such as asphalt, chocolate, and adhesives. These pumps offer solutions to many high flow, low pressure industrial pumping needs whether its the pumping of fresh water, semidirty water or liquids with some suspended solids. Developed to match the sumitomo internal gear pump, sauer bibus produces and manufactures customised applicationspecific complete solutions to meet. External gear pump overview external gear pumps are a popular pumping principle and are often used as lubrication pumps in machine tools, in fluid power transfer units, and as oil pumps in engines. Gear pumps are roughly classified into external and internal gear types. This manual offers the turollaocg customer summarized technical information on all standard turollaocg gear pumps and motors and the standard available flanges, shafts, and ports. Designed to reliably handle viscous fluids across a broad range of flows and pressures, flowserve gear pumps feature double helical, herringbone type gears. Maximum rotation speed of multiple pumps is governed by the slower pump. Their main interest is not the pump itself, but smooth, highquality, uninterrupted production at a lower total cost. Main characteristics alloy cover and flange type 08 11 16 21 26 32 37 42 48 55 62 78 88 105 capacity cm3 giro cm3 rev 0. Our application engineers will gladly assist in selecting a. The design of the internal gear pumps, series qxeh, is completely focused on high customer benefits.
Hypr212, hypr212mx, hypr212mx, hypr212mxlh hydraulic rotary pumps harken has developed a 2speed rotary pump with both automatic and manual shift pointsa first in the industry. For standard multiple pumps, see multiple pump technical manual. Digital gear pump drive digital gear pump drive 7521170 model no. The pump must not be used for other purposes than recommended and quoted for without. For vertical suction lift should pump run dry between uses, rewet pump or use foot valve. There is no control pressure in the servo piston, so the pump will stay at full stroke. Johnson pump has more than 50 years of experience in developing and manufacturing gear pumps and is one of the leading suppliers in the market. This paper presents an experimental study of external gear pump efficiency based upon an analysis of the stribeck values. Fluid shall be carried between gear teeth and shall be displaced when.
Each individual pump is preset for rear connection to one or more pumps by interposition of the appropriate coupling flange. The volumetric, mechanical, and overall efficiencies of a variety of. After viewing a nice video on youtube about the mecanism of this hydraulic gear pump, i wanted to draw it in solidworks so here is the result. Do not run the pump at abnormally high or low flow rates operating at a flow rate higher than normal or at a flow rate with no back pressure on the pump may overload the motor and cause cavitation. All cast iron construction with 4 ports and roller bearing design. These pumps are widely used because of their reli ability and low cost of ownership. They typically consist of a northern heavy duty gear pump, electric motor, shaft coupling, and coupling guard, mounted on a unit base. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. This page will introduce you to gear pumps, applications that use gear pumps, and. Defects classification pawel pietkiewicz chair of mechanics and machine design university of warmia and mazury in olsztyn k e y w o r d s. Gear pumps are designed with very close internal clearances. Pump drives and heavy duty transfer cases an introduction to durst standard modified custom durst is a division of regal beloit corporation, a leading manufacturer of electric motors, mechanical and electrical motion controls and.
External gear pumps can come in single or double two sets of gears pump configurations with spur shown, helical, and herringbone gears. Abstract the paper comprises research results of the gear pump typical failures and their connection with. Submersible sump pump cducap series water pump pdf manual download. Cross gear pumps motors 40 series gear pump suction characteristics typical performance data do not operate above the rpminlet vacuum curve or 8 in. Thanks to patentpending bearing technology, it delivers a greater volume of oil faster, more efficiently, and with a higher shift point than other pumps. They are one of the most common types of pumps for hydraulic fluid power applications. This nomenclature differen tiates it from an internal gear pump. Displacement d the displacement of a rotary gear pump is the volume displaced during one complete. Pump flow can be varied by varying input speed with pulleys, a gear reducer, or electric motor inverter vfd. Group 3 gear pumps technical information bibus hidrotos. Whether youre looking for hydro gear transaxles, such as hydro gear zt3100, zt2800 among others. External gear pump overview michael smith engineers. The fluidotech fg200300400 series, born from the solid experience in mag drive gear pumps, is a smart and compact pumpmotor unit. The kseries submersible and endsuction centrifugal pumps are built of stainless steel for long lasting.
The gear pump is a precision machine with extremely tight fits and tolerances, and is capable of working against high differential pressures. In an effort to meet distributor and customer demands for decreased. Gear pump components pump unit assembly northern pump is a full service gear pump manufacturer. Gt series hydraulic pump service instructions pump disassembly procedure 1. The housing of the pump and the internal metal parts are in aisi 316l stainless steel and the gears are available in peek, ceramic peek or ptfe. The gear pump was invented around 1600 by johannes kepler gear pumps are also widely used in. Hc series multiple gear pumps cross cross stock no. Please read this manual carefully before using the pump in. At hydro gear parts youll find the best replacement for your mower or any outdoor equipment. The entrance of foreign material could cause damage or rapid wear to the pump components. The pump housing is in stainless steel aisi 316l, while gears and. Low flow rates may cause a reduction in pumpbearing life, overheating of the pump, instability and cavitation vibration. Flange and cover in aluminium or on request, cast iron. Never side load pump drive shaft, use a jackshaftbearing arrangement.
Php manufactures bushing gear pumps and motors to the highest quality and durability for the most demanding applications. The pumps are ideal for use with variable speed drives. They give high volumetric flows even with high operating pressures, a low noise level, and they have a high endurance thanks to the balancing system of the loads on the guide bushings. Performance of units in multiple pump applications are the same as single pump. View and download wayne submersible sump pump cducap series operating and parts manual online. You receive the price of the configured external gear unit upon request. In a radial flow pump, the liquid enters at the center of the impeller and is directed out along the impeller blades in a direction at right angles to the pump shaft.
With a grease pencil, ink marker or metal stamp, mark each housing or cover on the parting line in a way that will enable you to reassemble the parts in the same position when you put the unit back together. It may be calculated from the physical dimensions of the gears, or it. A gear pump uses the meshing of gears to pump fluid by displacement. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. We frequently build and assemble pump unit assemblies, or skids as they are sometimes called. General aluminum gear pumps and motors technical information. Pump sizing pump sizing involves matching the flow and pressure rating of a pump with the flowrate and pressure required for the process. By the way, watch the video, its great for learning. Gear pumps ap100 gear pumps are widely used in modern hydraulic systems due to their high performance, long service life and low purchase and maintenance costs. Sauerdanfoss high performance gear pumps are fixed displacement pumps which. The working principle of the external gear pump is illustrated in figure 1. Instruction manual topgear gs internal gear pumps read and understand this manual prior to operating or servicing this product. See product dimensional information page 35 for outline drawings of pumps and.
Internal gear pump, fixed displacement type pgh frame size 4 and 5 component series. Pdf an investigation of external gear pump efficiency. For pump head information, see pump headinformation see page 61 within this cd. The pump is so named because it has two gears that are sidebyside or external to each other. Roloid gear pump 2 introduction roloid gear pumps are suitable for pumping a wide variety of liquids which have some lubricating property. One rotor of internally cut gear teeth will mesh with one externally cut gear. Gear pumps galtech group 2 start pumps 12 tooth gears and consequent decrease in noise levels. Qx double pumps consits of two single pumps mounted on a common drive shaft. Pdf this paper presents a model for gear pump assembly design realized in. Pdf gear pumps represent the majority of the fixed displacement. The development of mechanical pumps was intimately linked with the progress of vacuum science up to the middle of this century when the introduction of both the sputter ion pump and the sublimation pump provided an alternate method for the production of low pressure.
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