Twin screw rotary pump with renevable liner and internal bearings for all. The twin screws inside the pump turn interchangeably, allowing for a nonmetal contact that creates an even pressure. This includes all piping for auxiliary system such as seal flush, or pump heating lines. The bearings and timing gears are located in separate oil reservoirs to ensure long pump life and high reliability. A major oil company selected viking api 676 compliant pumps for unloading crude from railcars to processing. No stirring, pulse free gasliquid conveying the working surfaces of rotors are free from contact and shorttime dry running can be realized it can be used for conveying of various nonlubricating media due to an outboard bearing various structures including horizontal, vertical and heating jacket it can be used for conveying of various low viscosity or. The flowserve mp1 is the most robust twinscrew pump in the oil and gas industry. Each process in refineries is designed to maximize the value of the petroleum products produced. Centrifugal pumps with magnet drive, screw pumps with magnet. Overhung twin screws single volute single end single pair of screws between bearing twin screws. The new l3ma pump is an api 676 compliant triple screw pump. The outer pump casing is of compact design type and provided with ample flow passages to. Api 676 compliant pressures up to 20 bar temperatures up to 200. In addition to the pump itself, all of the components of the pump assembly had to meet the api and dot specification as well, from the motor to the mechanical seal, to the base.
Engineered for multiphase pumping, it features a doublesuction, timed twin screw configuration built in accordance with api 676, latest edition. Manufactured in over 80 sizes, their design provides complete axial balancing of the rotating elements and eliminates all metalto. The fact that the vertical pump can be multistaged single or. Twin screw, 1 cst 2 screw, 200 cst centrifugal, 1 cst centrifugal, 200 cst system 2 system 1 3 1 2 performance curve twin screw pumps centrifugal pumps by change of viscosity twin screw, 200 cst 1. The design of the mp1 was further refined to provide the highest overall efficiency and lowest operating vibration.
The pumps are selfpriming and can convey fluids containing gas or air. Operating point of twin screw pump at 200 cst, flow increase 3. The torque is transferred to the driven shaft via helical gears. L4 four api 682 mechanical seal twin screw rotary pump with renevable liner and external bearings, for all non lubricant fluids with light and medium viscosities, in heavy duty services seal chamber designed for all api 682 mechanical seal configuration.
Manufactured in over 80 sizes, their design provides complete axial balancing of the rotating elements and eliminates all metaltometal contact within the pump. Due to the use of a new spindle material it is possible to have the spindles run directly in a steel casing. Oilgas mixing pump twin screw pump china oilgas mixing. The inner casing, cast type, can be supplied in a wide range of materials to match. The impeller and diffuser type casing are designed to deliver the head and capacity that your system requires in the most efficient way possible. Feb 15, 2016 presenting the new xpd 676, from viking pump, the industrys first fully api 676 compliant internal gear pump.
Field replaceable liner, keyless timing gears and coupling with tapered shaft for ease of maintenance inline suction and discharge flanges for easy installation. Flows up to 5,000 litres per minute and pressure up to bar 200 bar peak. The pump is med twin screw rotary type and it is composed by a couple of rotor axes, with opponent coils, with mutual special outline that work inside a chamber set in the pump casing. The screw pump design has better mechanical efficiency as it uses less power for the same capacity relative to a. This standard covers the minimum requirements for rotary positive displacement process pumps and pump units for use in the petroleum, petrochemical, and gas industry services. The two rotors are machined from a singleblock piece. Twin screw pumps bornemann twin screw pumps are selfpriming, double ended positive displacement pumps with external timing gears and bearings. Pompa ini memiliki daya hisap yang tinggi, self priming dan npshr rendah. Screw pumps are able to work at a higher motor speed 30003500 rpm. Controlledvolume pumps, hydraulically driven pumps and positive displacement reciprocating pumps are not included see api 674 for positive displacement reciprocating.
General installation, operation, maintenance and troubleshooting manual for imo pump two screw products warning this manual, and the specific instruction manual, should be read thoroughly prior to pump installation, operation, maintenance or troubleshooting. Only the radial loads are balanced on the single volute twin screw pumps. Api 676 3rd edition klaus union supplies magnetic coupled twin screw pumps for more than 25 years. The design of the mp1 was further refined to provide the highest overall. Operating point of twin screw and centrifugal pump at 1cst 2. Oil terminals rail is a critical mode of transportation of both crude oil and refined fuels. Due to the larger gears, rotation speed is limited. The pump is composed of two sets of opposed screws. Twin screw pumps, designed and manufactured according to api 676 standards. The new series has been completely designed and engineered to supply extremely reliable pumps, even if the working conditions are critical. A recent terminal project involved twelve viking api 676 compliant pumps for railcar. Leistritz is the first address when it comes to the application of screw pumps. Api std 676 positive displacement pumps rotary active, most current buy now.
Blackmer twin screw pumps are rotary, positive displacement pumps capable of handling various clean liquids that contain no solids. Annex b provides guidance for factors affecting twin screw efficiencies informative. By assembling a team of experienced twin screw pump experts and allowing them to design their dream pump, fristam has developed the most robust and easy to maintain twin screw pump on the market. Expert solutions for critical applications finder pumps.
Twin screw, 1 cst 2screw, 200 cst centrifugal, 1 cst centrifugal, 200 cst system 2 system 1 3 1 2 performance curve twin screw pumps centrifugal pumps by change of viscosity twin screw, 200 cst 1. The excellent suction of twin screw pumps allows for a pulsefree flow, aiding their growth in popularity as the worlds appetite for oil grew. Sqtype specialized for low moisture content materials di. Fds twin screw pump in typical fashion, we have taken a proven technology and perfected it.
Jual twin screws pumps api 676 lugata karya teknik. Centrifugal pumps with magnet drive, screw pumps with. Api 676 peraprinz twin screw pumps executions 7 the radial and axial loads are balanced on the double volute twin screw pumps. After all, the company, with its headquarters in nuremberg, is one of the pioneers in the field of screw pumps. The two rotors are machined from a singleblock piece, and the intermeshing screws provide a synchronous operation thus balancing the axial hydraulic thrusts. Twin screw pump with paddle twin screw pump with screw conveyor pat transfer of any liquid is enabled. Field replaceable liner, keyless timing gears and coupling with tapered shaft for ease of maintenance inline. Market launch of the slm avp magnet drive centrifugal pump per api 685. Twin screw pumps albany pumps gear, screw and lobe pumps. For installations with different pump sizes and designs the modular system for the leistritz l4 series twin screw pumps permits simple and economical keeping of a spare parts inventory. In this case, the slip q s,1 is laminar, which increases linearly with. Presenting the new xpd 676, from viking pump, the industrys first fully api 676 compliant internal gear pump. On every rotor, made in one bar, two contrasted and synchronized screws are realized to balance every hydraulics thrust, and through external device,gear couple. Annex b informative factors affecting twin screw pump wear rate and volumetric efficiency annex c informative inspectors checklist.
Muhammed and childs 20, rotordynamics of a twophase flow twin screw pump, asme j. We are the only company to hold the records, drawings and original pattern equipment. Bornemann twin screw pumps are also the ideal solution for tank storage and product transfer in refineries. Historically, twinscrew pumps were used mainly for transferring viscous liquids and were designed accordingly karassik, et al. Finder api 676 twin screw pumps rr and rrh pumps are p. During pump operation, the screws on the two shafts are. Engineered for multiphase pumping, it features a doublesuction, timed twinscrew configuration built in accordance with api 676, latest edition. Buy finder api 676 twin screw pumps for sale in perth.
Possibility to install a wide range of flushing and or quenching pipes. Tender specifications for screw pump 742p06ab index. Complete document positive displacement pumps rotary. Less pumps iso centrifugal pumps vacuum units finder is a european leader in the design and manufacturing of engineered pumps and systems for a multitude of heavyduty process and industrial applications requiring advanced technical. Rotary twin screw compressor technology was developed in the 1930s by a swedish company, srm, in collaboration with howden. Viking pump xpd 676 internal gear pump, explained youtube. For demanding applications with mechanical seals klaus union offers a series of twin screw pumps, the dsp2c complementing our well known dsp4c and magnet driven slm dsp2c twin screw pump ranges. Oil lubricated bearings and gear as an api 676 demand. The new pumps series production model 2o represents the evolution of one hundred years of experience in design and construction of twin screws rotary pumps with internal or external timing device. The pumps series producon model 20 are provided with a wear resistant inner casing for long life and trouble free operaons. The fsxb is the next generation fsxa series two screw pump suitable for high pressure applications and high compliance with api 676 3rd edition.
We manufactured the worlds first operational screw compressor and further developed the technology in the 1960s with the introduction of the oil injected twin screw compressor. Pdf rotordynamics of a twophase flow twin screw pump. Pump type twin screw pumps external timing gears pump series hr series. Twinscrew pumps bornemann twinscrew pumps are selfpriming, double ended positive displacement pumps with external timing gears and bearings. Designed and built in accordance with api 676 norms, cerpelli rrlo represent the evolution of 100 years of experience in the field of design and construction of twin screw volumetric pumps. Less pumps iso centrifugal pumps vacuum units finder is a european leader in the design and manufacturing of engineered pumps and systems for a multitude of heavyduty process and industrial applications requiring advanced. It improves upon traditional rotary pump designs by providing smoother, more constant flow across a wide range of viscosities, temperatures and pressures. American petroleum institute api list your products or services on engineering360.
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