Pdf an investigation of external gear pump efficiency and. Model 1,2 ccmrev 3,0 ccmrev 6,0 ccmrev length 189 200 200 118. Gear pumps are also widely used in chemical installations to pump high viscosity fluids. Displacement d the displacement of a rotary gear pump is the volume displaced during one complete. It may be calculated from the physical dimensions of the gears, or it. Further configuration variants are given by different flanges, shafts, valve arrangements and multiple pump combinations. This design allows very fast maintenance, mttr files or use the turning pages style format.
They are one of the most common types of pumps for hydraulic fluid power applications. Select type standard pump pump with out board bearing tandem pump motor comes standard with ob bearing 4. Gear pumps are roughly classified into external and internal gear types. Integral gear sets include the shaft, driven gear and idler gear as one unit. Available to supply pump with anticlockwise rotation. Parts book p20p5051p7576p315 gear pumps and motors distributor program.
Can be combined with pgh internal gear pumps, pv7 vane pumps and axial. The grabcad library offers millions of free cad designs, cad files, and 3d models. Select gear set drive shaft and gear set continental gear set continental will use. Get an overview of the inner workings of an internal gear pump, and where they work best to determine if theyre a good fit for your application. The pumping capacity of the internal gear pump is less in comparison to the external fear pumps. The pumps birotational feature helps reduce inventory requirements. System components product specification sheet hpto hydraulic gear pump spline shaft, type r. Ordering code 0pflb01 shaft extension and flange combination refer to accessory 2 inletoutlet combination refer to accessory 1.
The shafts with fixed gears are assembled in the cover and housing, supported by sleeve type bearings. The fine gearing with a high number of teeth guarantees a lowpulsation volume flow. En 624 kb sauerdanfoss group 1 gear pumps catalogue en. Internal gear pump overview internal gear pumps are exceptionally versatile. If phosphate ester type fluids are used, the maximum speed is restricted to 1200 rmin. External gear pumps work external gear pumps are similar in pumping action to internal gear pumps in that two gears come into and out of mesh to produce flow. Rotodel rotary gear pumps are useful for handling viscouse liquids i. The pl series is designed to meet the application needs of either a pump or a motor. The johnson pump brand represents more than 50 years of experience in developing and manufacturing gear pumps and is one of the leading suppliers in the market. Misalignment longcoupled pump align pump and motor. Liquiflo also offers basemounts with or without the motor preinstalled.
Gear pump technology technology at the heart of each eco gearchem pump are two tightly toleranced, machinegenerated spur gearsa drive and an idler gear. The rotary gear pump is an alternative that should not be o verlooked for low to moderatepressure 100 psig or less applications. Group 3 gear pumps technical information bibus hidrotos. Join the grabcad community today to gain access and download. Hollow shaft electric motors for yuken pumps output of 0. Our internal gear pumps are characterised by extremely low noise levels, low pulsation and a very large speed range. Sudovest via massari marzoli,6 21052 busto arsizio va tel. Hydraulic fluid is drawn into the input port of the pump and discharged from the output port. The gears are optimized to reduce noise and pulsation during operation. Hydraulic pump is an integral part of every hydraulic circuit. Gear pump components pump unit assembly northern pump is a full service gear pump manufacturer. Sauerdanfoss high performance gear pumps are fixed displacement pumps which consist of the pump. The cavitystyle is designed to handle higher inlet pressures. These needs are ideally served by the aluminum pumps in the skp1nn and skp2nn ranges.
The grading of the total of 8 nominal sizes makes it easier to set the desired dosing ratios. Ga series gear pumps have long been workhorses in highly viscous applications within a multitude of industries due to their dependability, efficiency and low total life cycle costs. Excessive noise and vibration suction andor discharge piping not anchored or properly supported anchor per hydraulic institute standards. Most commonly the drives are combined with the following two options of attached pump heads. The moment you buy a johnson pump brand gear pump from spx process equipment, you will join thousands of industrial customers who rely on our pump technology. Hg is fixed displacement and intermittent compensation internal gear pump. Please note before using this catalogue yuken by ala. The gear pump was invented around 1600 by johannes kepler. Ap1 is an all aluminum construction, high pressure hydraulic gear pump. Yuken can offer a large volume pump described below.
Please read this manual carefully before using the pump in. Stay ahead with the international fluid power exposition ifpe visit us at booth. This nomenclature differentiates it from an internalgear pump, which has one gear. This catalogue was planned and edited in such manner it can be used in the planning of hydraulic system, for product recommendation, and as technical material for those who usually handle oil hydraulic equipment. The pump is so named because it has two gears that are sidebyside or externalto each other. It can maintain high volumetric efficiency even at low rotate speed because of the axial and radial clearance. The gear pump was invented around 1600 by johannes kepler gear pumps are also widely used in. Pgf hydraulic pumps are leak gapcompensated internal gear pumps with a. Rated size ng 005 006 008 011 0 016 019 022 025 spec. Fixed displacement, external gear pump designed for medium pressure applications. All cast iron construction with 4 ports and roller bearing design. Select type standard pump pump with out board bearing. The kracht gear pump size kf 0 is especially suitable for these applications. A gear pump is a kind of rotary pump and is defined as a positive displacement pump.
Gear pump size 1 1,8 3 10 15 17,5 37 45 55 90 graphicmind 0309 zona ind. 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. The standard snp2 pumps are offered throughout the given range of displacements. Last week we gave a quick and dirty explanation of internal gear pumps, this week we take on the external gear pump. Files are available under licenses specified on their description page.
The tap4nn gear pump is available in a displacement range from 60. It widly applies to a variety of mediums with different property and viscosity because of special structure and selected different pump s matenrials. Though they have similarities, such as using gears to move fluid, their applications and capabilities are drastically different. The rotary gear pump merits consideration because it overcomes many of the problems encountered with reciprocating metering pumps and is generally much less expensive.
The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Nyp series internal gear pump is a new positive displacement pump,and is designed according to the different fields requirements of petroleum,chemical industry,paint,medicine,foodstuff and so on. The pump body is comprised of two housing components. Power is applied to the splined center shaft thus turning the gears. They employ two or more rotating gears that mesh together and depend on the surrounding fluid pressure in the magnetic cup. The internal gear pumps are available in various sizes and pressure levels from 3. Group 3 gear pumps technici al information 77c 33m 55k 50c 100 66m 88 66m 88 5 turolla l1016456 september 20 rev c snp3nn 01ba cut away pump design sep3nn the sep3nn gear pump is. The moment you buy a gear pump from spx process equipment, johnson pump brand, you will join thousands of industrial customers who rely on our pump technology. Rexroth gear pumps pdf there is no doubt that the geartype pump is the most widely used design in hydraulic. Media in category gear pumps the following 38 files are in this category, out of 38 total. Pdf an investigation of external gear pump efficiency. The standard mounting flange is as detailed on the installation drawing and porting is.
Engineered to reliably pump viscous fluids over a broad range of flows and pressures. The pumps are usually used to supply hydraulic systems with. Troubleshooting guide troubleshooting guide part 1 problem possible cause corrective action no discharge pump not primed verify suction pipe is submerged. Gear pumps with external gear are the most popular pumps at producing of power unit. Group 3 gear pumps technici al information 77c 33m 55k 50c 100 66m 88 66m 88 5 turolla l1016456 september 20 rev c snp3nn 01ba cut away pump design sep3nn the. The kf 0 is an external gear pump with flow rates of 0. Magnetically coupled gear pump series 2030 5030 3 20. Front body 1, middle housing 2, rear cover 3, shaft bearing 4, annular gear 5, sliding bearing 6, slide plate 7. 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. In conventional condition of 1500rmin and 250bar, the volumetric efficiency. Liquiflo gear pumps are available with basemounts to simplify installation.
The original design is from a book for mechanical design. Pg0 series gear pumps gear pump 1 pg0series gear pumps specifications model number designation 1 rectangular mounting available in t. Nyp internal gear diesel oil transfer pump, buy gear pump. We frequently build and assemble pump unit assemblies, or skids as they are sometimes called. All structured data from the file and property namespaces is available under the creative commons cc0 license. Engineered to reliably pump viscous fluids over a broad range of flows and pressures, the ga series superior between bearings, external gear. Product description this catalogue describes yuken s primary standard oil hydraulic equipment. A gear pump uses the meshing of gears to pump fluid by displacement. Base not rigid enough tighten holddown bolts on pump and motor or adjust stilts. The design of the internal gear pumps, series qxeh, is completely focused on high customer benefits. The useful viscosity range of an internal gear pump is from 1cps to over 1,000,000cp.
They are changing mechanical energy to hydraulic energy. The pumps are ideal for use with variable speed drives. An investigation of external gear pump efficiency and stribeck values article pdf available in sae technical papers 8 september 2012 with 2,511 reads how we measure reads. They typically consist of a northern heavy duty gear pump, electric motor, shaft coupling, and coupling guard, mounted on a unit base. Model number designation specifications the maximum operating pressure is constant irrespective of fluid types. Rexroth gear pumps pdf there is no doubt that the gear type pump is the most widely used design in hydraulic. E n g i n e e r i n g gear pump basics the external gear pump is a positive displacement pd type of pump generally used for the transfer and metering of liquids. Hardcoated shafts hardcoated shafts are used to extend pump life in difficult applications requiring higher levels of wear resistance. Rexroth external gear pumps are available as standard gear pumps in the 4 series of b, f, n and g and as silence gear pumps in the series of s, t and u, in which the displacements are graded by different gear widths.
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