vane type hydraulic pump factory
There are three basic models of the Atos PFE vane pumps available. These fixed-displacement cartridge types offer a long service life and versatility. The cartridges are fully interchangeable, and 13 ...
The DFP pumps are fixed displacement vane pumps made in four different sizes, each size having five different nominal displacement. They are available with one pumping element (single ...
... HV2020 series of double pumps are utilized in both industrial and mobile application. Possessing a vane design that reduces wear and clearances, the volumetric ability of the pump is ...
... follows: up to 25MPa for gear pumps, 16MPa for vane pumps and 28MPa for piston pumps. The capacity for the gear pumps is up to 60cm3/rev and up to 100cm3/rev ...
Hydraulic industrial vane pumps reduce installation costs and drive extended life due to their high pressure capability, up to 320 bar in a small operating envelope.They ...
In vane pumps, a number of vanes slide in slots in a rotor which rotates in a housing or ring. The housing may be eccentric with the center of the rotor, or its shape may be oval. In some designs, centrifugal force holds the vanes in contact with the housing, while the vanes are forced in and out of the slots by the eccentricity of the housing. In one vane pump, light springs hold the vanes against the housing; in another pump design, pressurized pins urge the vanes outward.
During rotation, as the space or chamber enclosed by vanes, rotor, and housing increases, a vacuum is created, and atmospheric pressure forces oil into this space, which is the inlet side of the pump. As the space or volume enclosed reduces, the liquid is forced out through the discharge ports.
ISO 9001:94 certified manufacturer of pressure compensated, variable displacement & volume hydraulic vane pumps for transfer applications. Specifications of vane pumps include capacities ranging from 4 gpm to 70 gpm, operating pressures ranging from 100 psi to 3,000 psi, & pressure compensation ranging from 100 psi to 2,000 psi. Features include bolt & manifold mountings, variable volume & pressure compensated design, direct spring-operated compensator, hydrodynamic journal bearings, balanced vane tip loading, 1-piece forged rotor shaft, & pressure balanced thrust plates. Applications of vane pumps include food processing equipment, machine tools, marine, & oil field equipment.
Products: Sliding Vane Pumps for Aviation fuels, Biofuels, Diesel, Ethanols, Fuel oils, Gasolines, Lube oils, Solvents, Agricultural ammonia, Butane, CO2, Hydrocarbons, Propane, Refrigerants and many more liqueifed gases
In 1981 Camel Precision Co.,Ltd was founded. The management of company fully awards of high quality products requires not only sophisticate machinery, But good knowledge in technology is also important as well. Company invited senior engineers from Germany and Japan to lead the manufacturing and training of local engineers in hydraulic industry. We offer our customers industrial pumps, solenoid directional control valves, hydraulic pumps, vane pumps, external gear pump, internal gear pump, directional valve, hydraulic valves...etc.
CML, Camel Hydraulic, Camel Precision has been offering customers high-quality Vane Pump production service, both with advanced technology and 38 years of experience, CML, Camel Hydraulic, Camel Precision ensures each customer"s demands are met.
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Many industries utilize hydraulic vane pumps, from the automotive and aerospace industries to the food processing industry. These pumps consist of a sealed cavity with a rotor to which vanes attach. They especially excel at processing low viscosity fluids. For example, when you fill your soda at a fast-food restaurant, a hydraulic vane pump powers the beverage carbonator.
But hydraulic vane pumps are not only valuable for manufacturing and delivery processes. You can also find them in end-user products, such as automobiles, where they’re used for things like power steering and air conditioning.
A true testament to any technology is its long usage history. Patented in 1874, hydraulic vane pumps have been around for roughly a century and a half. Their use across industries has only grown in that time. MAC Hydraulics has been an authority on these pumps for quite a long time as well, and we can answer any questions you may have.
Hydraulic vane pumps create pressure by forcing hydraulic fluid into an ever-smaller area before releasing it back into the system. This is achieved through a combination of sliding vanes, inlet and discharge holes, and a drive shaft that’s off-center compared to the chamber.
Fluid is pushed through inlet holes and into the chamber of the pump by the atmospheric pressure acting on the fluid in the reservoir. Once in the chamber, the fluid is collected in the space between two vanes that are connected to the driveshaft and pressed against the external wall of the chamber to form a seal.
Because the drive shaft is off-center in relation to the pump chamber, as it rotates, the vanes are pressed in by the external wall and the space between them becomes smaller. This change in volume increases the pressure of the fluid, which is then forced out of the pump on the other side of the chamber when the pressure is at its greatest.
One advantage of using a vane pump is how it can handle a wide range of low to medium viscosity fluids. This means they can be used by a wide variety of industries to move fluids including, but not limited to:
The internal system of a vane pump is highly lubricated with fluid and minimal metal-to-metal contact. This makes these devices relatively easy to maintain, with the vanes being the parts that are the most prone to wear and tear. Luckily, vanes are cheap and easy to replace.
One potential safety issue in many industries is the noise level in the workplace. Thankfully, a pump that is running with no issues is quiet. So making use of them in a manufacturing facility helps keep the noise down, or at least does not add to it.
When properly constructed and maintained, a hydraulic vane pump is a highly reliable piece of equipment. It has the potential to last a very long time. In fact, it could last you a lifetime. That is why it is important to take care of it and know what to look for as far as signs of problems.
Like everything else, these systems have their limits. No instrument, substance, or part will suit the needs of every job. A hydraulic vane pump typically does not do well with the processing of very high viscosity fluids. It also will not handle excessively high pressures or abrasive fluid contaminants.
Industry insiders have calculated that dirty fluid is either directly responsible or at least a contributing factor to over 80 percent of all hydraulic vane pump system failures. It does not matter how well-constructed your hydraulic vane pumps are or how tight the seals are if you are running fluid with abrasive contaminants through them. Running these abrasive fluids through a pump at high speeds will wear down the vanes and affect other parts such as the rotor and cam.
Sometimes the contamination of the fluid may not come from the fluid distributor or manufacturer but from the machine itself. Just as we explained about fluid, the fact that your machine is new does not guarantee its cleanliness. So, when you purchase new equipment, you should clean it before beginning operations to avoid contamination to your pump and adjoining parts or systems.
The cost of filtration systems, quality control checks, and basic cleanliness in fluid and machines will more than pay for themselves over the years. Over time, the increased production resulting from not having to shut your line down due to a pump failure and needing less frequent repairs will result in higher profit.
Cavitation is when small air bubbles manifest in your pump’s fluid and then implode. It seems like a relatively benign issue at first glance, but it can cause extensive damage to your hydraulic vane pump after some time.
The implosion of air bubbles in the hydraulic fluid can generate a massive amount of heat. This is a problem for two reasons. First, if the temperature gets too high, it can cause the hydraulic fluid itself to break down and be less effective. Second, the temperature and pressure differences caused by the implosions can wear down the metal components within the pump.
Both the wearing of internal metal components and the loss of the hydraulic fluid’s ability to properly lubricate parts of the pump can lead to metal chips and other contaminants entering the fluid. Once this happens, a snowball effect begins and the damage will exponentially get worse over time.
As we mentioned above, one of the hallmarks of well-running hydraulic vane pumps is quietness. If you hear knocking or banging from the inside, you’re either dealing with the presence of air or extremely low pressure in your pump. Therefore, unusual noise (that isn’t a simple hum or regular “operating” noise) is almost always a sure sign that something is wrong. Loud whirring sounds are also often present when there has been extensive damage.
If you notice external leakage around the pump, that points to a failure of one or more seals. Sometimes, this can also mean a bent rod. If the damage is not too extensive, you can have this problem fixed.
Maybe you’re noticing your hydraulic vane pumps have been less efficient, combined with sudden and frequent pressure drops in the pump. There may also be excessive heat. When you notice any of these symptoms, it is time to have your systems checked out by a professional technician.
Problems with hydraulic vane pumps tend to worsen very quickly due to the nature of their high-speed operation. A few metal shavings can quickly damage the vanes, rotors, and walls and create a ripple effect of problems. Calling attention to it right away may enable you to have it repaired rather than having to buy a replacement.
At MAC Hydraulics, our expert hydraulic technicians have experience maintaining and repairing hydraulic pumps of all kinds, including vane pumps. We’ll even come out to your place of business to make the whole process as simple and efficient as possible. Contact us today to request repairs or to set up a preventative maintenance plan.
The tips of the vanes are the most vulnerable part of each pump. Because the vanes are held out under pressure and subject to centrifugal forces, the area where the tip moves across the outer ring is critical. Vibrations, dirt, pressure peaks or high local fluid temperatures can all result in a breakdown of the fluid film, resulting in metal to metal contact and reduced service life. With some fluids, the high fluid shear forces created at points like this can damage the fluid and again lead to reduced service life. Although this effect is not limited to vane pumps.
Suction head pressures are very important for vane pumps and must not exceed the manufacturers stated minimum. Always pre-fill the tank suction line and pump casing. It"s always better to make sure the installation has a positive suction head, e.g. the pump is below the fluid level, but never self-prime. Remember that as soon as you remove any valve or break the circuit in any way, it"s likely all of the fluid will drain out of the pipework and back into the reservoir. This will result in the need to re-prime any pumps that do not have positive pressure heads.
Case leakage lines allow all of the fluid that has leaked past the rotating faces to drain back to the reservoir. Without a case leakage line, the pumps would instantly fail. Because these case leakage lines take away the lost fluid, the volume and temperature of the fluid will be directly related to the operating efficiency of the pump. By monitoring the temperature of this fluid and preferably flow, and contamination level as well, you should get a good indication of the condition of the pump and an early warning of potential failures.
Continental Hydraulics PowrFlow™ PVX Vane Pumps deliver the rugged, reliable performance and value you"ve come to expect in all our products. They outperform sensitive piston pumps in harsh enviroments. PVX Vane Pumps deliver faster response, and require less external compensation compared to fixed displacement designs. The pumps are designed to meet requirements of the machine tool, general machinery and other markets where low noise, high performance and competitive pricing are needed.
High-speed steel pump vanes are made from a highly durable material that is resistant to wear and tear. This makes them ideal for use in pumps that are required to operate at high speeds or under heavy loads. Steel pump vanes are durable and corrosion resistant, making them suitable for use in harsh environments where other materials might break down or become damaged and reducing maintenance requirements and downtime for the pump.
Each hydraulic pump vane is precision-machined to exacting tolerances and has high dimensional stability, balance, and excellent mechanical and sealing properties which can extend pump performance and life, and have given maximum power to pumps. you need further information about our hydraulic pump vanes, such as rotary compressor pump vane or,please feel free to contact us soon. To provide the best vanes for our customers is our main goal.
This article aims to describe the main features of the vane pump technology, how it works, its advantages and disadvantages, and where it is most commonly used. Finally, we will briefly mention the Fluid-o-Tech vane pumps.
Rotary vane pumps are a type of positive displacement pump. Like all positive displacement pumps, the flow rate is always directly proportional to the speed.
Vane pumps are available with different types of vane: sliding, flexible, oscillating, rotating, and external vanes. The vane pumps are known for their dry-priming, easy maintenance, and good suction characteristics throughout the life of the pump.
A splined rotor is supported eccentrically in a cycloidal cam. The rotor sits close to the cam wall to form a crescent-shaped cavity. The rotor is sealed in the cam by two side plates. The vanes or blades fit into the rotor cavities. When the rotor rotates and fluid enters the pump, the centrifugal force, the hydraulic pressure, and/or the pushrods push the vanes towards the housing walls. The tight seal between the vanes, the rotor, the cam, and the side plate makes this technology powerful for good suction, which is common to the vane pumping principle.
The housing and cam force the fluid into the pumping chamber through holes in the cam (small red arrow on the bottom of the pump). The fluid enters the pockets created by the vanes, the rotor, the cam, and the side plate.
As the rotor continues to spin, the vanes sweep the fluid to the opposite side of the crescent where it is squeezed through the cam discharge holes as the vane approaches the point of the crescent. The fluid then exits through the discharge port.
The rotary vane pump is very versatile and can be used in a variety of sectors and applications, from dosing to transferring and repressurizing fluids. Depending on the choice of materials, rotary vane pumps can handle a wide range of clean fluids.
Fluid-o-Tech is able to supply a wide range of rotary vane pumps covering a variety of applications in different sectors. In stainless steel, low-lead brass, technopolymer, direct coupled, magnetic or electromagnetic drive at variable speed, our pumps cover a flow rate range from 30 to 2200 l/h at pressures up to 18 bar. The built-in safety valve, available on request, limits the pressure to protect the pump and the hydraulic circuit.
The Fluid-o-Tech rotary vane pumps, WRAS or NSF certified for use with potable water, are the reference choice in the market of espresso machines and beverage dispensers for professional use.
The Vane Pump Manufacturers briefly introduced the vane pump, including common types and how they work. For more information on related products, please visit: https://www.xjetl.com
The rotary vane pump is a positive displacement pump that can handle lubrication and other low viscosity fluids at low pressures in low to medium volumes, and in some applications can handle relatively viscous fluids. This design, sometimes referred to as a carbonator pump, is used to make carbonated soft drinks and has traditionally been used in automotive applications. They have the ability to form a good vacuum and are commonly used to transfer LNG and certain solvents. Their various arrangements are described here, and their operation and common applications are discussed. For information on other pumps, please see our Pump Buyer"s Guide.
These pumps combine an eccentric ring with a grooved rotor. The slot houses the vanes that are radially movable as the rotor rotates in the ring. As the blades rotate around the suction port, they move outwardly to form a volume defined by the continuous blades, rotor and ring walls. This volume draws in fluid and is then sealed as it passes through the suction port. On the discharge side, the combination of the ring and the rotor eccentrically pushes the blade into the groove, thereby reducing the volume and forcing the fluid to flow out through the discharge port. The suction and discharge ports or kitchen are usually kidney-shaped and filled from the side.
The blades are typically made of carbon graphite to minimize wear when handling low lubricity fluids. Centrifugal and fluid pressure are common methods of extending the blade outward to the annulus, but effective extension methods such as rods are used in some designs. The blades themselves compensate for wear and most of the designs make blade replacement easy, resulting in low maintenance costs for the vane pump.
Another design employs a pivoting vane that swings outwardly under the action of centrifugal force to form a volume that decreases as they pass through the discharge port. An external vane pump is also produced.
The vane pump can be a fixed output design or can be made to change the eccentricity between the rotor and the ring. This allows variable rate control via a constant input rpm. Pressure compensated pumps are used in many fluid power applications.
Like a vane pump, a flexible sheet pump relies on an eccentric motion generated between the rotating rotor and the retaining ring to move fluid between the suction port and the discharge port. However, the flexible vane pump replaces the slot and the rigid vane, but instead employs a vane molded from a flexible material that deforms when the rotor forms a loop. This creates a cavity that expands on the suction side and collapses on the discharge side. This design is very useful for moving fluids containing particles or solids because there is no possibility of internal clearance of these particles. The impeller is made from a variety of rubber blends including EPDM and silicone and is compatible with a wide range of products. Flexible vane pumps are considered to be low shear.
As previously mentioned, the soda dispenser uses a vane pump to deliver water to a pressurized CO2 storage tank. Commercial espresso machines also use them to force hot water through a dense espresso grinder. The vane pumps are considered to be differential pressure pumps, which means that they can pressurize the fluid entering the pump suction port at a pressure above atmospheric pressure, just like a espresso machine that delivers hard pipes to the water supply system. Household espresso machines typically use cheaper piston pumps that are designed to absorb water from the built-in water tank.
Automakers use vane pumps to pressurize low-viscosity hydraulic fluids found in power steering systems, for which the original Vickers pump was developed. They are used both as fixed output units and as variable output units in automatic transmissions. The vane pump is best suited for low viscosity fluids that do not contain particles. An external vane pump is sometimes used to treat fluids containing solids.
Slide pumps are commonly used in refineries, docks, etc. for pumping oil, solvents, paints and coatings. Rotary vane technology is applied to hand pumps for manual conversion and similar operations. In recent years, micro-hydraulic systems for personal assist devices have created a need for miniature rotary vane pumps.
Flexible vane pumps are widely used in food, beverage and pharmaceutical services because of their low shear design that allows them to move cosmetics and similar creams without affecting their quality or pumping solid (eg yogurt) liquids without Cause damage. The low shear design is also suitable for the production of marine bilge pumps and water-based glue. Flexible vane pumps produce only low to moderate pressures, and material viscosity plays a role in how high the pressure can be.
Flexible vane pumps have excellent self-priming properties and can be used for tank stripping and similar operations without the need for valves or manual oiling. They are also reversible, making them easy to clean the intake lines of high viscosity products. Flexible vane pumps offer a relatively low cost solution for pumping solids and shear sensitive products, rather than other low shear designs such as rotary vane pumps.
The outer casing can be made of stainless steel for sanitary service or made of bronze for marine service, but due to its self-lubricating properties, ductile iron is used where possible. These pumps have both sealed and sealed magnetic coupling units. The vane pump is between the economical gear pump and the expensive piston pump.
Finally, while rotary displacement pumps are capable of pumping water, their primary application is for oils and viscous liquids because of the need to maintain lubrication of the friction surfaces and to seal very thin fluids. For most applications where water is the medium, centrifugal or dynamic displacement, the pump is a clearer choice. The vane pump works well with low viscosity fluids, and in several specific applications mentioned here, the vane pump can pump water to moderate pressure.
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Your business relies on efficient and accurate hydraulic systems to maintain a steady flow of operations. But what should you expect when a vane pump starts to experience issues, and how can you troubleshoot these problems? What are common concerns to be on the lookout for?
At Global Electronic Services, we specialize in hydraulic vane pump repairs. We can help you determine when making repairs on your own is doable versus relying on professionals.
Also commonly referred to as a rotary vane pump, this particular type of hydraulic pump may only have a few moving parts, but their precision is crucial. A vane pump is a positive displacement pump with a high flow rate often used for lower-pressure applications. It can operate with various configurations like swinging, external, rolling, flexible and sliding vanes and does not have any metal-to-metal contact internally.
While various vane pump configurations exist, they essentially operate the same way. Hydraulic vane pumps are efficient and reliable solutions for multiple industries. Vane pumps use individual plates called “vanes” set to a rotor that rotates inside the pump’s internal cavity. As the vanes move, they create different-sized chambers, which generate flow within the pump.
Inside a cycloidal cam sits a slotted rotor that sits close to the cam wall, forming a crescent-shaped cavity. Two side plates seal the rotor into the cam as the vanes fit between the impeller’s slots. A vane pump operates using spring-loaded and pressure-activated vanes, which push outward onto the cam ring. As the motor’s rotor rotates, the vanes direct the liquid to the opposite side of the cavity, then squeeze it through the discharge holes found in the cam.
Without proper maintenance and regular repairs, pumps can break and cause further damage to your company’s hydraulic system. Make sure to monitor each vane pump system to avoid costly, extensive repairs in the future.
High fluid temperatures can be the most challenging issue to solve because they can often cause other problems within the system. For example, a pump can overheat because of inefficiencies, but the system can also become more inefficient because of overheating. In an overheating situation, consider what is causing the increase in fluid temperature and determine what components may need replacing.
It’s also essential to be familiar with the hydraulic system’s usual operating sound, so you can quickly identify different mechanical breakdowns. For example, worn bearings often give off a screeching sound, while cavitation sounds like a low growl.
These three issues are not problems themselves, but indicate internal difficulties that require further examination. When you or your crew recognize any of these initial signs, make immediate repairs to reduce the risk of a failed pump.
Cavitation is when small bubbles form in the fluid. As pressure increases, the bubbles collapse and release high amounts of energy within the hydraulic system. This excess of energy can damage system components and cause pump issues. It often sounds like a low growl, so it’s crucial to fix this issue immediately, or it can destroy your company’s pump in minutes. If the pump doesn’t have a design flaw, cavitation can indicate clogged filters or that air is inside the system.
Fluid leaks are one of the most typical issues in a hydraulic vane pump. Leaks arise from worn components like hoses and gaskets. If you don’t see fluid leaks, a slow-performing pump or a low reservoir can also indicate a leak. Repair any of the worn components as necessary and check all the internal parts.
Your company’s vane pump may also experience high temperatures from an improper heat load. If the system experiences high inefficiency levels or the power input is too high, excess energy becomes heat. Fluid viscosity is another possible contributor if you’re using a lower-viscosity fluid, which can overheat the pump. Overheating can cause the fluid to break down quickly, therefore lowering the viscosity even more. Finally, cavitation can also contribute to an overheated pump.
Problems can also arise when air gets into the hydraulic system, causing a slowly operating pump or milky-looking discharge. If this is the case, and small amounts of air are present, run the system on low for about one hour for the fluid to absorb and dissipate the air. You can also bleed air from a release point in the hydraulic system.
When internal components like veins and pistons get stuck, inefficiencies and noises begin to arise. Once you identify the seized parts, you can also determine the cause. For example, rusted pieces can indicate water leaking into the hydraulic system, or varnished residue can mean the pump is operating at extreme temperatures.
Wear and tear happen to any hydraulic system, so keeping a regular maintenance schedule is essential. Check for loose and worn parts, then repair and replace as necessary. If you begin to hear odd noises, they can indicate loose screws, slackened connections and couplings, worn bushings or overworked parts.
It can be challenging to pinpoint flaws within your company’s vane pump because sometimes problems can be multifaceted or be part of a larger chain issue. Knowing telltale signs is helpful, but fixing the trouble yourself can lead to more damage or injuries depending on the situation.
Have maintenance personnel check for preliminary problems and ensure your work zone is clean to prevent pump clogs. Further troubleshooting steps you can take include:
At Global Electronic Services, we repair and service hydraulics and pneumatics, including vane pumps. Our step-by-step vane pump repair process includes:
Our factory-trained and certified technicians disassemble the entire pump to identify the exact issue. We then make repairs where possible, then replace damaged components with OEM parts. After reassembly, we test the hydraulic pump to ensure it operates according to its specifications. Ask a Global Electronic Services tech about your hydraulic vane pump today.
We offer an 18-month in-service warranty, with standard repair times reaching between one and five days. Our customer service team is available 24/7 when you need fast and accurate repair services to minimize your operation’s downtime. We evaluate each vane pump before starting repairs to let you know what to expect because we believe transparency is pivotal.
Reach out to us by calling 877-249-1701 or request a quote online to learn more about how we can repair your company’s hydraulic vane pump. Global Electronic Services is here to support your business’ bottom line to keep you running when it matters most.