The progressing cavity pump is a recent innovation in petroleum production. This leads to the volumetric flow rate being proportional to the rotation rate. Progressing cavity pumps cholet henri wittrisch christian. Pulsation from a progressing cavity pump stanier mechanical 4 mar 03 15. The vpd model has been specially developed for pulsefree pumping and dosing of.
One advantage for the operator is that such a valveless positivedisplacement pump is also capable of transporting stringy material safely. Progressive cavity pump, eseries spiral stator enables higher pressure per stage 23lobe elliptic rotor enables higher flow rate 01. Progressing cavity pumps pcp oil well pumps schlumberger. The pump design is ideally suited for both low to high flow applications and also allows for the development of multistage pumps that increase the. The rotor is formed as a single helix shape of some length. Simplify production for wells characterized by highly viscous fluid and high sand cut with progressing cavity pumps pcps. They are selfpriming, valveless, and due to their high process liability and suction capacity they are often used for the continuous, gentle conveyance and precise dosing in proportion to speed of difficult media. The progressive cavity pump principle is ideal for handling slurries, viscous, shear sensitive or two or tri phase mixtures or when applications require, significant suction lift capabilities. There is no metalmetal contact, as is the case with gear or lobe type pumps, nor do they work at high speeds like centrifugal pumps, since they are designed to withstand a certain degree of abrasion.
Whether for sludge, chemical substances, adhesives, petroleum or yogurt, we can meet your requirements with the proper combination from our selection of eleven netzsch pump types, four rotorstator geometries and our. With the pump elements being driven by drilling mud or other fluids, it became the prime mover for drill motors. Although these pumps are now most commonly referred to as progressing cavity pc pumps, they also are called screw pumps or moineau pumps. Understanding the performance of a progressive cavity pump with. No aggressive or corrosiv e materials or agents must be stored nearby.
Pcp was discovered by rene moineau, a pioneer in aviation in late 1920s. The liberty 2ll6 progressive cavity pump is a lowcost, maintenance free, dependable dropin replacement pump and is an ideal unit for abrasive pump applications such as the mud rotary drilling process for well drilling geotechnical and environment indust rial applications. These positive displacement pumps are engineered to deliver variable rates and constant head capable of handling various types of applications with superior sandlifting capability. Progressive cavity pump pcm use moineau technology in our progressive cavity pumps, to ensure they can operate at a higher pressure than other positive displacement pumps. Progressive cavity pumps are a type of pump that are very resistant to abrasion. Rene moineau in france over 60 years ago has proven to be one of the most enduring and innovative mechanical inventions in history. It was invented and designed in the late 1920s by the frenchman rene moineau. A progressive cavity pump is a type of positive displacement pump that is typically used when the pumping application is not suited to a centrifugal pump. Shaft seals verderpro progressing cavity pumps have a wide range of. Since 1980, progressing cavity pumps have been widely used in the production of heavy oil well containing sand and gas.
Moyno is the leader and most recognized name when it comes to progressive cavity pumps. They can be supplied with various rotorstator geometries conventional, 6l and tricam geometry and can be used in almost all branches of industry for pumping lowviscous to highly viscous media with or without solids available from metex corporation. Compensating eccentric motion in progressing cavity pumps background the progressing cavity pump developed by dr. The device was then being moved by fluid instead of pumping fluid. Applications can range from smallflow injection to mediumflow extrusion.
Pulsation from a progressing cavity pump pipelines, piping. Progressive cavity pumps a progressing cavity pump is a positive displacement pump employing a rotor and stator assembly to create temporary chambers to draw fluid into, which progress through the pump resulting in the fluid being expelled through the discharge port. Of all the types of pumps available, progressive cavity pumps are able to handle a wider range of fluid viscosities and properties than any other type of pump. Pdf progressing cavity pump pcp is a positive displacement pump with an eccentric screw. The progressive cavity pump is an excellent choice as the fluid viscosity increases beyond the efficient range of centrifugal pumps. Liberty process equipment progressive cavity downloadable. Classification of pumps types of pumps and their working. Our progressive cavity pumps, macerators and control systems are used wherever low to highly viscous, aggressive or abrasive media must be conveyed at low pulsation rates. The progressive cavity pump is a positive displacement, selfpriming pump with one single rotating shaft. Jim elsey gives an overview of progressive cavity pumps and the rotating positive displacement pump family. The rubber stator is vulcanized inside a steel pipe. The information, specification and illustration are this manual is intended as a guide for the selection, operation and routine maintenance of protex downhole up to date at time of printing. As one of most compact progressing cavity pumps available today, the pcm compact pump can handle a wide range of fluids with varying viscosities and solids. Progressive cavity pc pumps are some of the most versatile pumps offered.
Progressing cavity pump systems weatherford international. The 797pcp series progressive cavity pump is designed specifically for industrial dispensing and will provide you with years of trouble free, productive service. Progressive cavity pump 3d cad model library grabcad. Mid progressive cavity pump can offer minimum flow rates as low as 0. He was inventing a compressor for a jet engines and discovered that the same principle could have worked as a pump as well. They are wellaccepted across numerous industries such as chemical production especially inorganic chemicals due to their consistent flow characteristics and resistance to abrasion. Progressive cavity pump,is a pump that transfers fluid through a sequence of small, fixed shape cavities as an helix shaped rotor is rotated. The nemo sy progressing cavity pump is used for demanding applications in every branch of industry worldwide. The interaction of a single helical rotor rolling eccentrically within a doublethreaded internal. The flowrox eseries progressive cavity pumps were conceived by utilizing flowroxs extensive experience in progressing cavity pump service and spare parts production as well as the knowledge gained from our innovative peristaltic pump range. These pumps have large internal pathways and check valves with flaps to accommodate thick sewage, abrasive slurries, and industrial waste with large solids that would damage standard airpowered transfer pumps.
Progressive cavity pump, eseries technical data sheet. Operating and assembly instruction progressive cavity pump 24h helpline. The 797pcp2k series progressive cavity pump is designed specifically for industrial dispensing and will provide you with years of trouble free. When requesting information, replacement parts or assistance, always specify the.
Not binding operating and assembly instruction progressive. Selfheating, backlashfree, hollowshaft connection to the gear motor using a clamp set. All progressive cavity pump parts are kept in stock for immediate shipment throughout the united states and canada. However, there are applications in which some components wear out and cause problems. The patented sealless magnetic drive design provides zero leakage for the most.
When using equivalent pump speeds, gear pumps have comparable shear imparted compared to progressive cavity pumps. A video introducing progressive cavity pumping pcp theory and technology used in artificial lift. Progressive cavity pumps are well suited for liquids with higher viscosities. A progressive cavity pump is a type of positive displacement pump and is also known as a progressing cavity pump, progg cavity pump, eccentric screw pump or cavity pump. Get your progressive cavity pump today from fischer process. The unique design of the pump makes them useful for a variety of pumping applications, such as. A progressive cavity pump follows a principle of positive displacement.
Progressive cavity pumps a progressive cavity pump is designed specifically to transfer abrasive and viscous fluids with a high solid, fiber, and air content. The progressive cavity pump pcp is a positive displacement pump, using an eccentrically rotating singlehelical rotor, turning inside a stator. Our pumps offer very low shear operations, as well as being pulsation free, meaning they are ideal for any tasks which require a steady flow no matter what the product. Moyno progressive cavity pumps fischer process industries. Nemo progressing cavity pumps have a very broad application range and are used in all branches of industry for the continuous, pressurestable, gentle and lowpulsation conveyance of almost any substance. The 797pcp series progressive cavity pump is designed specifically for industrial dispensing and will provide you with years of trouble free. Progressive cavity pump, production engineering 1, artificial life method. Progressive cavity pump pump flow measurement free. Pc pump design can be optimized to achieve the best wear performance available for a given. Pulsation from a progressing cavity pump pulsation from a progressing cavity pump.
The fluoroelastomer diaphragm withstands higher temperatures than a neoprene diaphragm and has better resistance to fuel such as gasoline and kerosene. It rapidly gained an important place in the production of heavy oils containing gas. Progressing cavity pumps archives powerflo products, inc. Fluid researchs m series progressive cavity pumps provide the highest precision and reliability in delivering small quantities. The main components which determine the system discovered by professor rene moineau are a rotating part, called the rotor and a sta tic part, called the stator. Through the years, advances in pump design, electronic monitoring and materials of construction have improved pc pump energy efficiency, decreased maintenance requirements and allowed them to handle more severe application conditions. A class progressive cavity pump a class progressive cavity pumps produced by subtor feature a structural design with a bearing black, which can bear a higher axial load than. The rotor forms a single helix like a corkscrew and rotates eccentrically in the stator. The other names for psp are screw pumps or moineau pump or cavity pump.
Can anyone help advise on whether these pumps are really pulsation free. Moineau set out to design a rotary compressor and in the process created a new rotary mechanism to be used for the. The progressing cavity pump and its geometry a progressing cavity pc pump, or a single screw pump, is a positive displacement pump and therefore a fixed volume is displaced with each revolution of the pumps rotor. A hard steel screw rotor rotates and orbits within an elastomer stator.
A pair of moyno series a munchers have helped reduce maintenance intervals and improve capacity at a major waste water treatment plant in massachusetts. The progressing cavity pc pump is well established as the pump of choice for handling abrasive solids. The units must be protected against mechanical strain and the impact of external forces. Pumps and pump parts offered for sale by liberty process equipment, inc.
Pdf progressing cavity pc pump design optimization for. Maintenance and troubleshooting of progressing cavity pumps. The progressive cavity pump is an excellent choice as the fluid viscosity increases beyond the efficient. Uses for progressing cavity pumps pump protection maintenance whats new. It transfers fluid by means of the progress, through the pump, of a sequence of small, fixed shape, discrete cavities, as its rotor is turned.
Progressive cavity pump free download as powerpoint presentation. Design positive displacement pump displaces a defined volume per stroke, cycle, or revolution general types of positive displacement pumps rotary progressing cavity gear internalexternal lobe screw peristaltic. Progressing cavity pumping pcp systems derive their name from the unique, positive displacement pump that evolved from the helical gear pump concept first developed by rene moineau in the late 1920s. Pdf analysis and prediction of fluid flow behavior in progressing. Liberty 2ll6 progressive cavity well drilling mud pump flow curve from liberty process equipment subject. Rene moineau invented the pc pump in france in the 1930s. We recommend reading this manual and keeping it for future reference in a safe place near the pump itself. The stator is a resilient elastomer in a doublehelical configuration molded inside a steel casing. The progressing cavity pump pcp, invented by rene moineau, is a great innovation for the whole industry, particularly in petroleum production.
Equipment pump sizing installation commissioning troubleshooting winpetro program. This month, we explore progressive cavity pc pumps, which belong to a class of rotary positive displacement pumps. Handling of fluids requiring manual feeding or gravity fed pumps through the enlarged hopper. Replacing progressive cavity pumps with peristaltic pumps. The rotor is usually constructed of a highstrength steel rod, typically doublechrome plated. If you dont see your parts diagram below please feel free to contact your liberty process. S class progressive cavity pump the s class progressive cavity pump is designed and produced to transport any medium including water.
The progressive cavity, or mono pump, as it is more commonly known is simple, robust and particularly adept at pumping slurries and sludges, a trait which makes them particularly well suited to oil and gas exploration, sewage treatment, and so on. The reason progressing cavity pump pcp customers stay with weatherford is simpleour pcp systems consistently exceed expectations. In the june 2008 issue, we turned our attention from centrifugal to positive displacement pumps. Progressing cavity pumps belong to the group of rotating positive displacement pumps. We are adding these curves to our electronic downloads as time permits. We provide unequaled technical expertise to deliver purposebuilt pcp solutions for your specific application. The progressive cavity pump units must be protected against sunlight and uv light.
These pumps are ideal for use in food and pharmaceutical applications as well as industrial, single component material in automation and robotic delivery systems. The rotor is a circular section single or doublethreaded screw with short or long pitch. Our policy is one of continued development and therefore we reserve the right to. The steel rotor and rubber stator are the main pumping components.
This manual is intended as a guide for the selection, operation and routine maintenance of protex downhole progressive cavity pumps. When requesting information, replacement parts or assistance, always specify the pump type and serial number indicated. The stator or cylinder is formed as a doublehelix having twice 2x the pitch of the rotor. The progressing cavity pump and its geometry a progressing cavity pc pump, or a single screw pump, is a positive displacement pump and therefore a fixed volume is displaced with each revolution of the pump s rotor. Bearing block with free shaft extension design pump can be run with any type of drive, such as servo motors, diesel motors or hydraulic drives. Serving water and wastewater treatment, pulp and paper, specialty chemical and oil and gas recovery industries. Moineau in his earliest design of the progressing cavity pump, variations of this design are still heavily used by the original licensees, e. The progressive cavity pumps are also referred to as eccentric screw pumps, cavity pumps or single screw pumps. Surplus, rebuilt, new and used industrial process progressive cavity pumps from popular makers including moyno, continental, liberty and many more. We are an authorized dealer of moyno progressive cavity pumps in centraleastern.
Excel fluid group offers netzsch nemo progressive cavity pumps. Progressive cavity an overview sciencedirect topics. The progressive cavity design provides gentle handling of products that are either too viscous or sensitive to shearing for use with other pump styles. Seepex is a leading worldwide specialist in pump technology. Operating and maintenance instructions progressingcavitypump. Product is gently carried through moving cavities created by the pumps screwlike rotor. The pump materials of construction will be based upon the application.
We are adding these manuals electronically as time permits. A beginners guide to progressive cavity pumps pumps. It has now been confirmed as very efficient for the production of large flow rates of light and abrasive oils. They have smooth output flow and good selfpriming ability. Since 1972, roper pump companys progressing cavity pumps have operated in wastewater applications and a broad range of industrial applications, including environmental technology, food processing, chemical manufacturing, pulp and paper, and petroleum production. Progressive cavity pump pump flow measurement free 30. Our inventory includes small pumps, large pumps, ezstrip family, grinders and screens, and much more. Operating and assembly instruction progressive cavity pump.