Installation and maintenance instructions screw vacuum pumps. Rotor dynamic analysis of driving shaft of dry screw vacuum pump. Click to submit your name, email address and required technical documentation, our system will automatically send it to you. The innovative design allows these pumps to be used whenever reliable, compact and low maintenance vacuum solutions are required. Pd series dry screw vacuum pump, hermes viet nam machinery. Screw pumps operate at higher speeds than rotary vane pumps and are best for moving dry bulk goods. Installation and maintenance instructions vacuum science is. Because the rotary screw pumps run hot, actually the hottest of any of the. The cobra ns vacuum pumps the principle of screw pumps. Following are some typical applicaons where gxs is used. Qsvi 25, qsvi 40, qsvi 50, qsvi 75, qsvi 100, qsvi 200. The vacuum pump is tight down to ultimate pressure.
Varodry dry screw vacuum pump leybold pdf catalogs. Edwards gxs dry screw vacuum pumps customised soluons for your applicaon whether you require a single pump, pump and booster combinaon or complete vacuum system, we have a range of pumps designed to provide opmal performance in a wide range of applicaons. Paper open access related content study on design of. Screw vacuum pumps clawvac claw vacuum and overpressure pumps dry compressing vacuum pumps 220. Heptadry is the ideal solution for all areas requiring oilfree vacuum. These pumps have modified designs to meet our customers needs. Edwards new range of eds dry screw pumps features an innovative design which creates a new benchmark in the screw pump market. The timing gear is the most important part of the screw vacuum pump, and it is necessary for turning the screws with a certain clearance kept from each other. Oil lubricated rotary vanes are yesterdays technology. Quincy compressor qsvi series instruction manual pdf download. Pdf rotor dynamic analysis of driving shaft of dry screw. We have created the following sections to make it easier for you to correctly identify the product, industry or service brochure you require. The timing gear is the most important part of the screw vacuum pump, and it is necessary for turning the. Unlike conventional twin screw vacuum pumps, these extremely quiet, durable systems function without lubricating fluids or sealing oils, and as a result, do not use costly mechanical seals.
Pumping speeds in this series range from 100 to 2,500 m 3 h. How to make sure you select the right dry vacuum pump. Numerical study of customised mesh for twin screw vacuum. Following are some typical applications where gxs is used. Read this manual carefully before installing, operating, or servicing the pump. The power of the motor is transmitted to the main shaft through a coupling. Two parallel bearingsupported, intermeshing screw rotors having opposite threads synchronously and contact less counterrotate in a cylindrical housing that tightly encloses.
The cycloblower industrial series line of gardner denver pd blowers and vacuum pumps is one of the industrys best when it comes to performance and energy efficiency. This pump consists of a drive screw and a driven screw mounted inside a cylinder case. For best pump life longevity, read this manual carefully before installing, operating, or servicing the pump. Operating principle the everest esph dry screw vacuum pump is a hybrid variable pitch screw, dry running non contact type vacuum pump. This page contains all brochures available for download throughout our site. Simplex packages have a capacity range from 78 to acfm 2. In addition vacuum pumps can be incorporated into complete engineered systems based on application requirements. The screw vacuum pumps screwline were developed in view of the special requirements of industrial applications. Screw vacuum pump for food packaging elmo rietschle. Dry compressing screw vacuum pump for industrial applications dryvac dry compressing screw vacuum pump chemrovac dry vacuum pump for chemical and pharmaceutical applications 171. Operating principle the cobra bc 0100 f vacuum pumps are cobra nw screw vacuum pumps with cooling water and nitrogen circuits. Dry screw pumps with a pumping speed of 110 m 3 h at 50 hz and m 3 h at 60 hz hepta 200 p further information less information dry screw pumps with a pumping speed of 220 m 3 h at 50 hz and 265 m 3 h at 60 hz.
Introductiondry screw vacuum pumps operate with two screw rotors rotating in opposite directions. Principle of operation the sdv dry screw vacuum pump is a singlestage, dry running, noncontact, variablepitch screw type vacuum pump. Add a conservative approach to machine speed and you have all the benefits of atlas copcos screw element, including inherent reliability, optimal efficiency and life cycle costs. Dry screw vacuum pumps operate with two screw rotors rotating in opposite directions. Gxs dry screw pumps and combinations our new gxs dry pumps take vacuum performance to the next level. Innovation is an integral part of our 100year history. Never operate the pump with suction side open to air.
Now another quality product has evolved from the kinney family, the kinney dry screw vacuum pump. Singlestage vacuum generation supplies a socalled low vacuum. Screw vacuum pump for food packaging elmo rietschle pdf. Elmo rietschles screw pump is revolutionizing vacuum generation in the food packaging industry. Anti corrosive dry screw vacuum pumps specification ultimate pressure power rotation 50hz60hz cfm torr pa kw rpm 7489 7. Based on the wellknown and durable plugandplay design principles of atlas copco compressors, these vacuum pumps have been designed by vacuum engineers to deliver. Dry screw pumps with a pumping speed of 350 m 3 h at 50 hz and 420 m 3 h at 60 hz. Two pa rallel screws 8 rotate in opposite directions in the pump body. View and download quincy compressor qsvi series instruction manual online. The revolutionary usmade, oilfree kds series vacuum.
They rotate in opposite directions, and in so doing, trap a quantity of gas at the inlet 5 and transport it towards the exhaust port 6 and into the exhaust channel 7. Maintenance includes rollerbearing replacement at suggested intervals. Paper open access related content study on design of rotor. Installation and operating instructions busch vacuum solutions. These airends are manufactured in kaesers rotary screw compressor production centre at the factory in coburg, where the complete systems are also assembled and tested. Pdf dry twin screw vacuum pump, which generates no oil and gas during operation, inherits the advantages of screw machinery, such as high reliability. Based on the wellknown and durable plugandplay design principles of atlas copco compressors, these vacuum pumps have been designed by vacuum engineers to deliver peak. A rotary screw vacuum pump is a positive displacement pump that consists of two helical screws intermeshed within a rotor housing. Qsv vacuum products are designed with compressor duty bearings in a compressor service airend. The single stage rotary vane vacuum pump has two rotary vanes that are eccentrically mounted in the rotor slots in the stator cavity. Vacuum pump efficient oilsealed highly rotary screw outstanding performance design robust life is significantly pump longer than screw. Dry screw vacuum pump, rotor dynamics, considerations are taken into account so as to optimize the natural frequencies, critical speeds shaft in order to minimize the various forces acting on the shaft so as to increase the life.
With unique screw technology and world leading high efficiency drives, enabling advanced temperature control and long service intervals, you are guaranteed bestinclass pumping speeds and low running costs for many years to come. Our rotary screw vacuum pumps are equipped with a speciallydeveloped kaeser vacuum airend with sigma profile. The applied numerical grids need to move, slide, and deform. All maintenance and repair work all replacement parts all wearing parts and consumables all travel and labour time replacement pump within 24 hours is our optional complete service. Qsvi rotary screw vacuum pumps michigan air solutions. This traps the medium to be pumped between the cylinder and the screw chambers and transports it to the gas discharge. Typical installation of dry screw vacuum pump in evaporation process process parameters. Divac scrollvac leyvac screwline dryvac chemrovac ideal vacuum.
Y specially designed kop is installed at suction of vacuum pump to protect from process. Varodry dry screw vacuum pumps vacuum can be so optimize simplicity. They are available ready to use, with all the options. Easy, fast installation saves time spacesaving the qsv series has one of the smallest footprints on the market. Qsvi series rotary screw vacuum pumps model qsvi25 qsvi40 qsvi50 qsvi75 qsvi100 qsvi200 nominal capacity acfm 365 550 730 980 1500 3000 horsepower 25 40 50 75 100 200 base vac level hgv torr 29. They are designed to operate on a con nuous basis at any point from atmospheric pressure to a vacuum level of 0. Hermes viet nam machinery company viet nam hanbell address. An intricate piece of engineering, built to the exacting standards and quality demanded by our customers, the new dry screw pump provides you with a troublefree and costeffective solution to meet your needs. Based on the wellknown and durable plugandplay design principles of atlas copco compressors, these vacuum pumps have been.
It can not only be used for industrial applications, but also for coating. Both screws turn in the compressor housing without friction and at very tight clearances. It is strongly recommended that those who wish to operate or maintenance uds dry vacuum pump to read this manual carefully before operation for proper operation, maintenance and long pump life. Hepta p the extensively configurable process version. Dry screw vacuum pumps busch vacuum solutions global. Pdf study on the performance prediction of dry twin screw vacuum.
Qsvi series rotary screw vacuum pumps model qsvb 7. The results obtained are evaluated on basis of the vacuum pump minimum required standards, then the design key words. The tooth surface is heat cured, and then polished with a special high precision toothpolishing machine for lowering of noise. The advanced screw design results in lower electric energy consumption compared to standard screw designs. In the ghs 12004800 range of vacuum pumps, industryleading screw technology meets many years of vacuum knowhow. The nc series b version, single stage, dry vacuum pumps are of a directdriven, watercooled, positive displacement, variable pitch screw design. This ensures a clean pumping system with outbackmigration of oil in to the system being evacuated. Especially designed to handle harsh process vapours having low ph values.
Numerical study of customised mesh for twin screw vacuum pumps. Dryrunning vacuum pumps for generalduty applications. Two parallel screws 5 rotate in opposite directions in the pump body. The screw pump animation shows how a screw pump works using a double screw pump working model. Unlike conventional twin screw vacuum pumps, these extremely quiet, durable systems function without lubricating fluids or sealing oils. Pump system screw vacuum pump screwline sp 630 with ruvac wau 2001 screwline sp 250 to sp 630 f. Rotary screw the rotary screw type vacuum pump can reach extremely high vacuum levels low absolute pressures. The process gas is drawn into the pump through the inlet at the idler end of the screws the side opposite the.
A screw vacuum pump consists of two parallel, screw shaped rotors, one with a righthand thread and the other with a lefthand thread. Nonoxy version nonoxy version nonoxy version nonoxy version for the first two years the package price for a screw vacuum pump includes. Instruction manual for screw type dry vacuum pump uds series. Pdf study on the performance prediction of dry twin. When the rotor drives the rotary vane to rotate, the rotary vane is pressed against the cylinder wall by the centrifugal force and the rotary vane spring to separate the intake and exhaust ports, and the inlet chamber volume is periodically expanded to inhale. In order to study the micro working process within the dry twin screw vacuum pump, a test rig has been designed and built and the pv indicator diagrams of the working process of dry twin screw. Contents 2 024110020 102016 e page 0 important safety information 5. Power is transmitted to the main rotor shaft through a vbelt or directdrive coupling and then. The cobra nw screw vacuum pumps operate according to the principle of screw pumps. A dry screw vacuum pump consists of two parallel, noncontacting helical screw shaped rotors 1 and 2, fig.
Rotary screw vacuum pumps made in germany every rotary screw vacuum pump comes equipped with a kaeser vacuum airend manufactured to made in germany quality standards. Edwards gxs dry screw vacuum pumps customised solutions for your application whether you require a single pump, pump and booster combination or complete vacuum system, we have a range of pumps designed to provide optimal performance in a wide range of applications. Description the kdp dry screw vacuum pump discharges gas under pressure by the counterrotation of screw rotors. Compare delivered acfm per input horsepower to any other design and you will find that quincy rotary screw vacuum pumps outperform all industry standards. The range of dry screw pumps is ideal for your low and medium vacuum applications. Study on the performance prediction of dry twin screw vacuum pump. Square screw form easier to machine on mill turn using standard end mills gradual compression no porting innovative but not for no valve plate excellent dust and liquid handling screw generation technologies taiko develops queen bee or quimby screw profile pump failure to register patents in. The compression housing and the special shape of the screws form the. Downloand our brochures nash liquid ring solutions. Sihi dry gds450 and gds650 vacuum pumps are designed specifically for nonclassified general industrial applications. Even though it can reach these levels, it cannot be used for every application.
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