running hydraulic pump dry made in china

If the impeller seizes, it will stop and not rotate. To correct this, the pump should be taken apart and a drill bit should be used to clean out the bore of the impeller.

A hole may develop in the rear housing, allowing liquid to escape. Or, the boss of the rear housing, which secures the pump shaft, may become deformed, which will allow the shaft to move instead of remaining stationary.

This will cause damage to the impeller and may cause the shaft to break from the impeller bouncing on it. If the pump is made from stainless steel, it is unlikely holes will develop in the rear housing or that the boss will deform. What is likely to happen is the impeller bushing will seize onto the shaft.

Generally, the larger the pump with larger and heavier impellers, the faster it will be to suffer damage. You can search our pumps for the sizes we have available.

Another factor is the liquid previously in the pump. If the liquid is ambient or cooler, it will take more time for the pump to suffer damage after it starts to run dry than if the liquid is warmer.

If you are using the pump for tank transfer and want to empty the tank, this may mean running the pump dry for a few seconds. If the pump is run dry for less than 45-60 seconds, the pump should not suffer damage. Anytime you are aware that the pump may have to be run dry to empty the tank, the operator must take care to ensure the pump is run dry for the absolute minimum amount of time. Any pump that suffers from running dry is not covered by warranty.

Dry running can be an expensive hazard on your equipment but with care and supervision, you can elongate the life of your machinery. Learn more about our maintenance best practices by contacting us.

Kubota has evolved alongside agriculture in Japan, and the company has worked to improve the performance of its rice farming machinery and refined these technologies. Leveraging its long track record and achievements, it entered the dry-field farming market to contribute to food production both domestically and worldwide. Dry-field farming covers crop acreage about four times that of rice farming, and while Kubota’s agricultural machinery, including the heavy-duty, high-horsepower tractors that it developed to address local needs, began to steadily gain acceptance throughout the global agricultural market, to achieve even greater performance meant that in-house production of a hydraulic system for dry-field farming would be inevitable.

Compared to rice farming tractors that work in paddy fields, dry-field farming tractors require greater amounts of power due to the many implements they use and the higher energy load required for working on hard soil. And in addition to the need for good responsiveness and more precise control of implements, environmental performance and fuel efficiency issues must also be solved. To meet these tall demands, the cost for developing hydraulic systems would inevitably be second only to engines, meaning that they also served as the key to cost competitiveness.

One reason behind the initiative to produce hydraulic systems in-house is that the agricultural machinery market is smaller than the automotive market, and there is little choice among suppliers looking to balance performance and cost. General-purpose products also had compatibility issues compared to exclusively-designed products, as well as limitations in terms of responsiveness and cost. What is more, Kubota was a latecomer to the North American and European dry-field farming markets, a fact that needed to be kept in mind. Implements have made technological progress particularly in the dry-field farming market, but major agricultural machinery manufacturers in North America and Europe have externally procured the hydraulic systems that can endure the diverse movements of implements. Given the established relationship between hydraulic system suppliers and major agricultural machinery manufacturers, the newcomer Kubota would not have an easy time obtaining hydraulic systems that could compete in terms of both performance and cost.

However, Kubota"s hydraulic equipment development team had been accumulating technology and experience through in-house production of key components since 1976. In other words, it was the unwavering efforts of those engineers that led to the development of Kubota"s unique hydraulic system.

K5V200 hydraulic pumps are commonly used in a variety of industries and applications. The K5V200 hydraulic pump is a positive displacement pump with an open-center motor that uses rotating gears to move fluid under pressure. It consists of three main parts: the rotor, stator, and liner. The rotor is connected to the motor shaft while the stator contains stationary blades that hold the fluid being pumped by centrifugal forces against a closed chamber wall or housing. The liner contains grooves or passages for transporting fluids from one end of the pump to another end where it exits through an outlet port at low pressure or suction pressure depending on whether it is operating in positive or negative displacement mode.

K5V200 hydraulic pump is a double acting piston pump that is used to transfer hydraulic power from one point to another. It has been designed and manufactured by KELLER, which is one of the leading hydraulic pump manufacturers in China.

The K5V200 hydraulic pump is a positive displacement pump, which means that it has a fixed volume of flow and pressure. This means that the K5V200 hydraulic pump will deliver a constant amount of pressure per stroke regardless of how many times you press down on the pedal or lever.

The K5V200 hydraulic pump is also known as a rotary vane pump, because it uses rotating vanes to move liquid through its chambers. Like most other types of pumps, this design allows them to produce higher flow rates at lower pressures than other types–and they’re also easier to manufacture and maintain because there are fewer moving parts involved in their construction (just like any other kind). However; unlike centrifugal designs where spinning blades create suction within cylinders by pushing against them from outside surfaces–these devices use internal forces generated by fluid displacement instead; meaning no matter how fast or slow these devices spin around inside themselves they’ll always generate equal amounts power output since there’s no air pressure difference between one side versus another!

The efficiency of a hydraulic pump is the ratio of output power to input power. In this context, “output” means available at the outlet of the pump and “input” means required to drive the pump. Efficiency can be improved by reducing either one or both of these terms.

Use the best hydraulic fluid. The type of hydraulic oil you use can influence pump efficiency, so it’s important to choose the right one for your application. In general, synthetic fluids are more expensive but also offer better performance than conventional mineral oils. They typically have a lower viscosity and higher temperature range than conventional fluids; this means that they flow more easily through systems and don’t break down as quickly under high temperatures.

Maintain your pump properly. Proper maintenance helps ensure that your equipment runs at its peak performance level for as long as possible–and this extends beyond just replacing worn parts every once in awhile! For example:

The K5V200 hydraulic pump should be installed by a professional. It’s important that you check the alignment of your pump frequently and make sure that it’s properly aligned. The best way to do this is with an angle finder, which can be purchased at any hardware store or online retailer.

The pump should be installed in a clean and dry environment so that it doesn’t get damaged from dust or moisture. You should also choose an area where access is easy so you don’t have trouble getting parts when they need replacing or servicing the machine as needed.

It’s recommended that you place your pump on top of flat ground instead of uneven terrain like rocks or dirt paths; this will help reduce vibration caused by movement during operation, which could damage internal components over time if left unchecked!

The displacement of a pump is the amount of fluid it can move in a given time. For example, if your application requires 200 cubic feet per minute (CFM), then you would need to make sure that you have selected a pump with this capacity or higher–200 CFMs is not something every pump can handle!

Pump capacity: The capacity of a pump is determined by its maximum flow rate and operating head. For example, a 2-ton K5V200 hydraulic pump can deliver up to 690 liters per minute (LPM), while at an operating head of 3 meters (m).

Speed: This refers to how fast the pump can move its medium through a pipe or hose. In general, higher speeds are used when there’s less resistance in the system; lower speeds are used when there’s more resistance in the system. An example would be if you were moving air through an air compressor hose versus water through a garden hose–you’d need different speeds for each application!

K5V200 hydraulic pumps are used in many different applications. They are often used in construction, mining and manufacturing industries because of their durability and ability to handle high pressure fluids. However, despite the benefits of using K5V200 hydraulic pumps, many companies choose not to optimize their efficiency levels which results in higher operating costs and lower performance levels.

Reduce energy consumption by up to 33% – By optimizing your pump’s efficiency level, you’ll be able increase its lifetime while reducing noise levels as well as maintenance costs associated with repairing or replacing components damaged by excessive wear due to overworking.

Premature pump failure: Why does it happen?Howdoes it happen? These questions can plague us all from time to time. Have you ever been frustrated that you can’t figure out why your pump is leaking? You just bought it—it’s never been used—and now it is leaking and/or failing to move product. This question has plagued me from time to time. However, pump failures are often not as complicated as they seem, and understanding them can give insight.

This is one of the most common early pump failures, and it can happen upon installation or startup or shortly after the pump runs for a few hours. Here are some ways to better understand why and how this happens:The seal was run dry. This common occurrence on almost any pump upon startup is because it is not primed with the fluid it is pumping. Priming a pump during installation and before startup creates a barrier fluid around the mechanical seal. This barrier cools and protects the seal. If the pump starts without that barrier, it creates friction, generating heat and burning up the seal faces—losing their sealing capability.

A cracked seal face. Cracking can happen on a new pump in transit to the end-user or from installing the seal incorrectly. Most but not all seal faces are made of carbon or ceramic materials. The cracks on carbon faces are often hairline cracks invisible without the correct lighting or a magnifying glass.

While process issues can stem from various reasons, these are the main ones:Application error.The pump selected should be designed to pump the product—e.g., you normally wouldn’t select a geared pump to move water. Although it could be done, it wouldn’t be efficient. Gear pumps are better for pushing oils and other thick viscous materials.

Operator error.Occasionally a non-self-primed pump runs dry, or startup directions aren’t properly followed. Most operators are savvy and prevent this from happening, but it is still good to be aware.

Operating conditions.Pumps exposed to outdoor elements, for example, will need proper insulation for colder temperatures—or the pump has a greater chance of failing prematurely.

Bearings can fail for various reasons. The most common is improper lubrication when the incorrect lubricant is used or not enough is applied. Bearings also fail in extreme temperatures. Another cause of failure is bearing overload, e.g., a pump cavitating from lacking the proper flow will increase pressure on the impeller’s front. This pressure will push the impeller backward, causing strain on the rear bearing and subsequent bearing failure from the excess load.

Fouling occurs when particle matter sticks to the pump’s internal surfaces, most frequently in the distribution lines connected to the inlet or outlet. When this happens, the pump’s efficiency and flow rate drop dramatically, leading to pump failure. Unfortunately, this problem is unavoidable, but various cleaning methods such as backward flush, filtration system, and others can help prevent it.

Pumps can fail in various ways. The earlier the problem can be detected, the better your pump’s survival chances. Most are everyday mistakes that one rarely stops to think about. The next time your pump fails, stop, take a step back and look at the bigger picture. The reason it failed may not be as complicated as you may think.

Nathan Maxwellis a shop technician at Motion’s Process Pumps & Equipment location in Omaha, Nebraska. A certified welder, Maxwell has 17 years of experience in welding, fabrication, machining, CNC and lathe operation, drilling, and plasma cutting, as well as six years in robotic welding and programming, and six years in process pumps. For more information, visitMotion.com/ienor Motion’s Knowledge Hub (motionind.biz/KH22) for additional industrial solutions.

The external gear pump technology is a type of positive displacement pump. External gear pumps simply use the actions of gears to transfer different types of fluids. In this article, we will illustrate the main features of external and internal gear pumps, the way they work, and other technical information. Finally, we will briefly introduce the external gear pumps produced

• an external gear pump utilizes two identical gears meshed side by side, where one gear (driving) is driven by a motor, and it – in turn – drives the other one, the idle (driven) gear. Each gear is supported by a shaft with bearings on both sides of the gear. Fluid trapped between the gear teeth is transported from the inlet to outlet ports, with the gear mesh acting as a seal between the ports.

• aninternal gear pumputilizes two meshing gears with the outer (ring) gear typically driving the inner (idler) gear. Fluids trapped between the gears are transmitted from the inlet to the outlet port due to the rotation of the meshing gears, with the gear mesh typically acting as a seal between the ports. An internal gear pump will often use a crescent component to assist in the internal sealing of the gears.

In the external gear pumps the two gears mesh with each other in a close fitting housing. As the gears rotate, fluid fills the space between corresponding gear teeth and is carried from the inlet side to the outlet around the external circumference of the gears. Where the teeth mesh together, fluid cannot pass and so it is ejected through the outlet.

• External helical gears: helical gears utilize “angled” gears, that is each gear tooth has an identical helix angle (referenced to the axis of rotation) such that the contact ratio of the gear mesh is always greater than 1. A higher contact ratio is beneficial in that two gears are often sharing the load during operation. Typically the helix angle for a pump gear is less than 5 degrees to maintain good hydraulic efficiency.

Thanks to their versatility, resistance, and technical features, external gear pumps offer advantagesthat are renowned in all their application fields.

Fluid-o-Tech is a market leader in the design and production of external gear pumpsand internal gear pumps. At the core of our work, we have chosen to build long-lasting relationships of trust with our Customers, becoming their technology partner for the newest developments.

Fluid-o-Tech external gear pump technology has proven to be the most reliable, efficient,and robustpump technology over the years for use within different applications and industries. Among our product types that are worth mentioning, you should consider:

1.Precisely matched to your machine specs, Cat pumps and motors protect your productivity and profits. Only genuine Cat parts can ensure optimized machine performance, long component life and the option to rebuild if you wear them out.

2.Get back to work fast with pumps and motors ready to run right out of the box. Only Topkitparts Cat parts can ensure that you get same-as or better-than-new performance, validated for durability through on-machine testing, and rigorously tested and inspected when the pump or motor is made. If you purchase a pump from a competitor, there may be additional labor to adjust the pump to meet the hydraulic system specifications.

Terminology and technical explanations of principles used in the world of precision pumps and fluid handling – compiled in compact form and presented in an easy-to-understand manner.

In the pump world, accuracy is defined as the ability of a given pump to perform relative to the average population. Tighter manufacturing tolerances allow Diener Precision Pumps to control this very well, allowing customers to set tighter control limits on their control software without fear of out-of-box calibration problems.

Precision is a pumps ability to repeat itself at a given performance point. This term applies primarily to metering pumps because they are typically used in high-precision dispense applications. The limits are shown on the product datasheets.

Cavitation is a common problem in pumps, caused when local fluid pressures drop below the fluid’s vapor pressure. In general, pump cavitation occurs when the inlet pressures are low. For example, if there is a blocked filter on the inlet, the pump tries to pull fluid, lowering the pressure to overcome the restriction. If the pressure continues to drop (i.e., form a vacuum) the fluid boils and forms vapor bubbles that collapse, damaging the surfaces.

Symptoms of cavitation include high noise, vibration, and unstable motor speed. The noise and vibration come from the collapsing bubbles and the motor speed becomes unstable due to the uneven torque loading. Confirmation of the problem is checked by measuring the absolute pressure at the pump inlet.

Fortunately, cavitation is preventable. Correct pump sizing is critical, as is the design of the inlet/outlet tubing and fittings. Coarse filters are acceptable on the inlet, but fine filters should be avoided because they can plug quickly and form restrictions. Avoid small diameter fittings and long lengths of small I.D. tubing. In general, size components so that the pump can “breathe” easily and remember to increase tube and fitting I.D. for higher viscosity fluids.

The metering pumps inlet stroke of Diener Precision Pumps occurs over only 90 degrees of rotation of the piston, so the fluid momentum is accelerating and decelerating quickly. It’s important to size the inlet tubing sufficiently large to allow the full flow through. It’s good practice to oversize the tube cross-sectional area to account for this.

The volume of fluid contained within the pump is referred to as the “dead volume”. The dead volume of a metering pump is normally measured with the piston fully retracted. Minimising this volume helps reduce cleaning time and fluids cost. In some pumps from Diener Precision Pumps, we’ve included a “quick rinse” feature that routes the fluid through the magnetic coupling area to further reduce cleaning time.

The pumps of Diener Precision Pumps are designed to run “dry” for short periods until they self-prime. However, operating a gear or metering pump “dry” for extended periods is not recommended because it generates frictional heat that can damage pumps. The limits are shown on each product datasheet.

A word of caution: starting a gear pump completely dry causes a very loud noise. We always recommend putting a small amount of fluid into the pump prior to start-up (just enough to wet the interior surfaces).

The moving components in a positive displacement pumps are typically machined to very small clearances. Once these clearances are filled with fluid, the viscous shear (see Viscosity section) acts to seal the surface and increase the pump’s volumetric efficiency. When the pump is first installed in a system (and presumably dry), the surfaces are not sealed and thus air in the lines can easily get through the spaces. The pumps ability to prime itself is called its “dry lift” capability, usually expressed in mmHg or meters of H2O. The smaller the clearance between moving parts, the higher the dry lift value. Once the pump surfaces are wetted, even with just a thin layer of fluid, the clearances seal better and result in its “wet lift” capability. Positive displacement pumps always have higher wet lift values, so priming the pump prior to start-up is always beneficial: it reduces start-up response time, reduces dry friction, and lengthens pump life.

Filtering the fluid before it enters the pump is always recommended, although filters must be chosen and maintained carefully to prevent cavitation. Diener Precision Pumps recommends a maximum filter size of 40 micrometer for gear pumps and 2 micrometer for metering pumps. The pumps will pass particles larger than this, but with increasing particle size becomes the potential to damage the pump. Never pump fluids with ferrous particles (iron, steel) through magnetically coupled pumps because the particles can stick to the magnet.

Diener developed a gear pump product line specifically designed to pump fluids with suspended particulates, especially pigmented inks and paints. The gears in these pumps are specifically hardened for this purpose but require engineering review depending on the fluid type and pigment loading. Please consult our factory for application assistance.

Some gear pumps of Diener Precision Pumps are fitted with adjustable internal relief valves. These serve two purposes: (1) to prevent over-pressurisation and (2) to prevent magnet decoupling. The valve is adjustable via an external screw adjustment. Pumps are provided with the valve completely closed so the customer can fine-tune its position during final installation. Caution: do not over-tighten the adjustment screw as it may damage the internal components.

The life expectancy of a pump will depend on the operating conditions. These include such things as fluid type, temperature, differential pressure, contaminants, and motor speed. Careful selection of the wetted components will help minimize wear without compromising performance.

The metering pump series of Diener Precision Pumps are constructed of ceramic and typically last for the life of the equipment, depending on the accuracy requirement. Metering pump life is generally measured in number of cycles (strokes).

Gear pump life is more likely measured in hours, since they are typically used in continuous operation. Designing the bearings so that they stay within the pressure-velocity limits of the polymers is the key to longevity. The new Silencer series by Diener Precision Pumps operated for 30,000 hours pumping distilled water with no drop in performance. This represents a continuous life expectancy of 3-1/2 years.

The gear pumps of Diener Precision Pumps are magnetically coupled to avoid shaft seals. A metallic cup separates the inner and outer magnets, eliminating the need for shaft seals. Magnetic couplings can be split into two categories: inner/outer magnet rings and stator/rotor configurations.

The maximum torque a coupling can sustain is a function of the magnet material, the temperature, and the dynamic loading. When the pump load exceeds the maximum torque, the magnets “decouple”, which means the outer magnet spins at the full speed and the inner magnet stops. The magnets cannot “re-couple” unless the motor is stopped, the pump load reduced, and the unit is restarted. Running a pump in the decoupled condition does not hurt the magnets, but it will slowly generate eddy-current heating in the magnet cup, which reduces the coupling strength until normal operation is resumed.

All products of Diener Precision Pumps can be operated in any position, although there are general guidelines to be aware of that will minimise potential hydraulic and/or hazard problems.

Pumps with moulded ports and/or Diener-supplied port fittings are sized for optimum pump performance. We recommend that customer-supplied fittings be carefully sized and applied to avoid the following problems:The inside diameter of the fittings should be large enough to minimise the chance of cavitation.

The fluid and ambient temperature ranges are shown on each product datasheet . These limits can be customised by Diener Precision Pumps engineering team for elevated temperature or cryogenic applications.

The gears in most of our pumps are usually constructed of engineering thermoplastics with a fibre reinforcement to increase strength and control thermal expansion. The clearances in these pumps are kept relatively small to improve volumetric efficiency, which means the specific flow may increase as the gears expand. This is not a problem unless the temperature increases so much that the gears bind in the cavity. Staying within the specified temperature ranges will ensure reliable operation.

Pumping higher viscosity fluids requires slowing the pump speed and increasing the size of interior pump openings and tube diameters. Please contact us for practical viscosity limits for Diener Precision Pumps products.

In a magnetic drive pump, the pumping element and fluid are contained within a hermetically sealed housing. The drive shaft from the motor rotates an assembly of magnets on the outside of the housing. Opposing this, on the inside of the housing, is a matching ring of magnets on the pump shaft (Figure 1). Torque is transferred through the housing as a result of the coupled magnets. The most important advantage of a magnetic coupling is that it allows the transmission of torque through a barrier without the use of rotating seals, along with the associated problems of leakage, potential contamination and continual maintenance.

Magnetic drives are available for rotodynamic centrifugal, turbine and side-channel pumps and positive displacement pumps including vane pumps, internal gear pumps, and external gear pumps and the basic principles and advantages are the same: the pumped fluid is contained within a hermetically sealed housing – the containment shell - eliminating the risk of leakage.

The coupled magnets are attached to two concentric rings on either side of the containment shell on the pump housing (Figure 2). The outer ring is attached to the motor’s drive shaft; the inner ring to the pump shaft. Each ring contains the same number of matched and opposing magnets, arranged with alternating poles around each ring.

The magnets in a magnetic drive pump can demagnetize if exposed to temperatures above their upper limit. In high temperature applications, pumps should not be run dry or in any other conditions that could cause heat build-up within the pump.

The use of rare earth metals is a major factor in the cost of magnetic drive pumps. They are mined in only a few places around the World (notably China) and prices can be volatile. For example, China manufactures 76% of the World’s neodymium magnets. Apart from their cost, another disadvantage of these alloys is their poor resistance to corrosion. In a magnetic drive, it is necessary to coat the magnets on the inner ring (which are exposed to the pumped fluid) with some form of protective resin or enclose them in a corrosion resistant casing. Common magnet casing materials include polypropylene, PVDF (polyvinylidene fluoride), PTFE, PFA, stainless steel and Hastelloy-C.

The maximum torque that can be achieved in a magnetic drive pump is determined by the gap between the magnets: the smaller the gap, the larger the torque transfer. However, there is a limit to how small this can be engineered, since the gap must include the containment shell and any protective materials coating the inner magnets (see Figure 2). For the safe operation of the pump, it is important that there is a reasonable gap between the rotating parts and the containment shell, especially if the pumped fluid is viscous. All parts must therefore be machined to high tolerances for greatest efficiency. In addition to these engineering concerns, the material used in the construction of the containment shell is important in maintaining a high coupling efficiency between the two sets of magnets and in reducing power losses and temperature increases.

The inner magnet ring, the pump shaft, and bearings are immersed in and lubricated by the pumped fluid. It is important that these parts are designed to operate efficiently in the environment. With highly viscous liquids, friction losses can be high; in an abrasive or chemically aggressive medium, bearing wear can be a problem. However, with the right choice of wetted materials - including silicon carbide, thermoplastics, stainless steel and high nickel alloys - magnet drive pumps are ideal for handling aggressive, corrosive and hazardous liquids.

When selecting a magnetic drive, it is necessary to determine whether its coupling has sufficient torque transmission capability to deliver the required flow. Normally, the coupling works synchronously, that is the motor speed is equal to the pump speed.

Magnetic drives are sensitive to extreme operating conditions that result in excessive torque. All magnetic couplings are rated for a maximum torque capability. When this is exceeded, the magnet rings may decouple and the pump shaft, will slip and may stop rotating completely. If this happens, the load cannot be picked up again unless the motor is stopped and then restarted. Decoupling can occur during start up when the torque is significantly higher than that expected under normal operating conditions. It is therefore important to take start-up conditions into account when sizing a pump and magnetic coupling for an application.

Decoupling can be used as a safety feature allowing the pump to cut out automatically if an extreme condition occurs. However, the magnets may be permanently demagnetised if the pump operates in this state for a prolonged period. The use of power monitors is recommended to detect the onset of decoupling.

Eddy currents in a magnetic coupling reduce pump efficiency and heat up the fluid around the inner magnets. Power losses arising from eddy currents can be described by the following relationship:

For maximum coupling efficiency, the magnet assemblies should have small diameters and low rotational speed since power losses are proportional to both the square of the speed (n) and the square of the drive radius (r). Torque can be increased by using a greater mass of magnets but this is difficult to achieve without also increasing the radius of the coupling. The decrease of coupling efficiency that would be expected with big, powerful pumps therefore sets an economic limit on the application of magnetic couplings.

The inner, driven magnets rotate within the pumped liquid and this generates a frictional torque and power loss, particularly when handling viscous liquids. Frictional losses also increase with magnet size, the square of rotational speed, and are inversely proportional to the size of the gap between the inner magnets and the containment shell. In extreme cases, frictional resistance can cause decoupling.

Magnetic losses in the containment shell generate heat inside the pump. In order to dissipate this heat (and avoid the potential of flashing (vaporisation of fluid) a certain flow of the pumped fluid is required through the gap between the inner magnets and containment shell. There are a number of ways this can be achieved:

Sensors can also be used to detect the first symptoms of overheating in the containment shell allowing conditions to be assessed and modified. Power monitors on the motor can also detect a low-load condition from, for example, dry running which could result in overheating.

Magnetic drives offer the key benefit of containment and zero leakage of the pumped medium. Rare earth alloy magnets with high field strength allow compact design. New materials for containment shell construction lower power losses due to eddy currents.

Magnetic drives are available for many pumps, including centrifugal pumps, side channel pumps, turbine pumps, vane pumps and internal and external gear pumps.

KCB Gear Pump is designed for pumping light fuel oils such as diesel, kerosene, and biodiesel. It is also possible to pump vegetable oil, motor oil, and even glycerol (waste product in biodiesel process). However, the viscosity of the working fluid will greatly determine if the pump can handle it. The duty cycle of the pump may not be continuous if these thicker oils are the fluid medium and especially.

Botou Saiken Pumps Co., Ltd is a well recognized and accepted name in the list of KCB Gear Pump Manufacturer & Supplier. We offer a comprehensive range of pumps which are meant for accomplishing various purposes. All the products are manufactured by following the international standards including the use of high-quality material and strict policy adherence. Their highly recommended Lubrication KCB Gear Pump is made for lubricating all types of machines. The Pump is available in Cast Iron and Stainless grade.All our products are available at reasonable rates thus most purchased by the customers.

The gear pump is a pump attached to the motor by a shaft. The pump itself is all metal (metal gears) and can pump hot fluids without affecting the motor.The motor is high power and has thermal protection, which will automatically shut off the pump in case of the risk of overheating.

These pumps create powerful suction and are self-priming. They can run dry for only intermediate amounts of time, allowing for the use of a suction hose for collecting fluids from a tank. They should not be run dry for an extended period of time as oil is required to lubricate the pump head. The metal gears which drive the pumping action can handle a lot of fluids, even if partially dirty. In the case of vegetable oil, any soft particles will pass right through the pump with no problems, and are often pulverized by the gears. Hard materials, such as metals, should not be allowed to pass through the pump or it may cause damage to the gears.

These pumps have high suction power and are great for collecting vegetable oil from tanks. Whether simply transferring oil or collecting oil, these pumps deliver fast pumping with no need for priming the suction hose.

These pumps are considered to be much safer for biodiesel production than the harbor freight clear water pumps since the pump is separate from the motor. The advantages of the continuous functionality and high flow rates make this an excellent pump for a biodiesel processor. It will pump the waste vegetable oil, biodiesel and even glycerin without any trouble.

While this pump has a high power motor capable of handling viscous oils in some applications, it will reduce the duty cycle of the pump and may be impossible for it to operate properly if the fluid is too cold/viscous. If the pump cannot get up to full operating speed during start-up, it will quickly heat up. It is recommended to start the pump to full operational speed prior to introducing a viscous fluid to it so that it will be able to maintain pumping speed.

Although the pump can run dry for the case of priming, it is best not to run the pump dry continuously for a long period of time to prevent the risk of damage to the pump from lack of lubrication. Fluids should be kept clean to avoid clogging of the gears. Coarse strainers (400+ micron) can be used on the suction end to prevent large particles from entering the pump. Do not use fine filters on the suction side or the restriction will prevent adequate flow.

A solid pipe or rigid hose is required for these pumps on the suction side. If a flexible hose is required, we recommend using the trash suction hoses which can easily retain shape with high suction power applied through them.

KCB Gear Oil Pump needs to be wired prior to use. The gaskets for the flanges do not have holes cut out to protect the pump from collecting debris in the gear during storage and transit.

The historical region now known as China experienced a history involving mechanics, hydraulics and mathematics applied to horology, metallurgy, astronomy, agriculture, engineering, music theory, craftsmanship, naval architecture and warfare. Use of the plow during the Neolithic period Longshan culture (c. 3000–c. 2000 BC) allowed for high agricultural production yields and rise of Chinese civilization during the Shang Dynasty (c. 1600–c. 1050 BC).multiple-tube seed drill and the heavy moldboard iron plow enabled China to sustain a much larger population through improvements in agricultural output.

For the purposes of this list, inventions are regarded as technological firsts developed in China, and as such does not include foreign technologies which the Chinese acquired through contact, such as the windmill from the Middle East or the telescope from early modern Europe. It also does not include technologies developed elsewhere and later invented separately by the Chinese, such as the odometer, water wheel, and chain pump. Scientific, mathematical or natural discoveries made by the Chinese, changes in minor concepts of design or style and artistic innovations do not appear on the list.

Philon of Byzantium (3rd or 2nd century BC)chain drive and windlass used in the operation of a polybolos (a repeating ballista),chain pumps which had been known in China since at least the Han Dynasty (202 BC – 220 AD) when they were mentioned by the Han dynasty philosopher Wang Chong (27 – c. 100 AD),clock tower built at Kaifeng in 1090 by the Song Chinese politician, mathematician and astronomer Su Song (1020–1101).

Escapement, hydraulic-powered (use in clock tower): The escapement mechanism was first described for a mechanical washstand by the Greek Philon of Byzantium who also indicated that it was already used for clocks.Yi Xing (683–727) of the Tang Dynasty (618–907) for his water-powered celestial globe in the tradition of the Han dynasty polymath and inventor Zhang Heng (78–139), and could be found in later Chinese clockworks such as the clock towers developed by the military engineer Zhang Sixun (fl. late 10th century) and polymath inventor Su Song (1020–1101).striking clock.pendulum resting and releasing its hooks on a small rotating gear wheel, the early Chinese escapement employed the use of gravity and hydraulics.waterwheel (which acted like a gear wheel) would be filled one by one with siphoned water from a clepsydra tank.

air conditioning, the Han Dynasty craftsman and mechanical engineer Ding Huan (fl. 180 AD) invented a manually operated rotary fan with seven wheels that measured 3 m (10 ft) in diameter; in the 8th century, during the Tang Dynasty (618–907), the Chinese applied hydraulic power to rotate the fan wheels for air conditioning, while the rotary fan became even more common during the Song Dynasty (960–1279).Georg Agricola (1494–1555).

archaeological site in Anatolia (Kaman-Kalehoyuk) and is about 4,000 years old.East Africa, dating back to 1400 BC.Falcata were produced in the Iberian Peninsula, while Noric steel was used by the Roman military.cast iron from the late Spring and Autumn period (722–481 BC), produced steel by the 2nd century BC through a process of decarburization, i.e. using bellows to pump large amounts of oxygen on to molten cast iron.Liu An (179–122 BC). For steel, they used both quenching (i.e. rapid cooling) and tempering (i.e. slow cooling) methods of heat treatment. Much later, the American inventor William Kelly (1811–1888) brought four Chinese metallurgists to Eddyville, Kentucky in 1845, whose expertise in steelmaking influenced his ideas about air injection to reduce carbon content of iron; his invention anticipated the Bessemer process of English inventor Henry Bessemer (1813–1898).

pestle and mortar to pound and decorticate grain, which was superseded by the treadle-operated tilt hammer (employing a simple lever and fulcrum) perhaps during the Zhou Dynasty (1122–256 BC) but first described in a Han Dynasty (202 BC – 220 AD) dictionary of 40 BC and soon after by the Han dynasty philosopher and writer Yang Xiong (53 BC – 18 AD) in his hydraulic power, which the Han dynasty philosopher and writer Huan Tan (43 BC – 28 AD) mentioned in his Xinlun of 20 AD, although he also described trip hammers powered by the labor of horses, oxen, donkeys, and mules.waterwheels were made in subsequent Chinese dynasties and in Medieval Europe by the 12th century.Pliny, Roman Empire by the 1st century AD.

Lewis, Michael (2000b), "Theoretical Hydraulics, Automata, and Water Clocks", in Wikander, Örjan,Handbook of Ancient Water Technology, Technology and Change in History, 2, Leiden, pp. 343–369 (356f.), ISBN 90-04-11123-9.

I have a customer who has a Yale erp030TGN36TE082 and as soon as you turn the key on, the hydraulic pump motor comes on and won"t stop until you turn key off or lift the panel housing the control levers. Everything else works normally. Help please!

they have GE SR controllers for the drive and a GE SP controller for the hydraulic pump (if it has SCR hydraulics). Otherwise the hydraulic would be a contactor controlled system.