unidirectional hydraulic pump quotation

Unidirectional Hydraulic Pump 36.5 Flange Group 2 depicts one circuit in which the motor"s motion is controlled by a 4-way valve. An electric motor drives a fixed-displacement pump in this circuit. The pump outlet is attached to a 4-way, 3-position directional-control valve with an open center. Our provided Unidirectional Hydraulic Pump 36.5 Flange Group 2 is very easy to install as well as simple to use. This pump is very effective to operate. This pump is very economical and can be easily purchased by our eminent customers, at nominal pricing.

Vivolo manufactures high-end hydraulic components, essential for the operation of various types of machinery: agricultural, industrial, automotive and earth-moving. Their products can be customized in their technical features, starting from small quantities.

Unidirectional hydraulic pumps in aluminium, and with external gears, of size group 3. Some pieces are available with cast iron flanges. The rotation verse is clockwise or counterclockwise. The performances achieved are: displacement 14.89 cm3/rev – 86.87 cm3/rev, rotation speed up to 3000 rpm, maximum pressures up to 320 bar.

There are typically three types of hydraulic pump constructions found in mobile hydraulic applications. These include gear, piston, and vane; however, there are also clutch pumps, dump pumps, and pumps for refuse vehicles such as dry valve pumps and Muncie Power Products’ Live PakTM.

The hydraulic pump is the component of the hydraulic system that takes mechanical energy and converts it into fluid energy in the form of oil flow. This mechanical energy is taken from what is called the prime mover (a turning force) such as the power take-off or directly from the truck engine.

With each hydraulic pump, the pump will be of either a uni-rotational or bi-rotational design. As its name implies, a uni-rotational pump is designed to operate in one direction of shaft rotation. On the other hand, a bi-rotational pump has the ability to operate in either direction.

For truck-mounted hydraulic systems, the most common design in use is the gear pump. This design is characterized as having fewer moving parts, being easy to service, more tolerant of contamination than other designs and relatively inexpensive. Gear pumps are fixed displacement, also called positive displacement, pumps. This means the same volume of flow is produced with each rotation of the pump’s shaft. Gear pumps are rated in terms of the pump’s maximum pressure rating, cubic inch displacement and maximum input speed limitation.

Generally, gear pumps are used in open center hydraulic systems. Gear pumps trap oil in the areas between the teeth of the pump’s two gears and the body of the pump, transport it around the circumference of the gear cavity and then force it through the outlet port as the gears mesh. Behind the brass alloy thrust plates, or wear plates, a small amount of pressurized oil pushes the plates tightly against the gear ends to improve pump efficiency.

A cylinder block containing pistons that move in and out is housed within a piston pump. It’s the movement of these pistons that draw oil from the supply port and then force it through the outlet. The angle of the swash plate, which the slipper end of the piston rides against, determines the length of the piston’s stroke. While the swash plate remains stationary, the cylinder block, encompassing the pistons, rotates with the pump’s input shaft. The pump displacement is then determined by the total volume of the pump’s cylinders. Fixed and variable displacement designs are both available.

With a fixed displacement piston pump, the swash plate is nonadjustable. Its proportional output flow to input shaft speed is like that of a gear pump and like a gear pump, the fixed displacement piston pump is used within open center hydraulic systems.

As previously mentioned, piston pumps are also used within applications like snow and ice control where it may be desirable to vary system flow without varying engine speed. This is where the variable displacement piston pump comes into play – when the hydraulic flow requirements will vary based on operating conditions. Unlike the fixed displacement design, the swash plate is not fixed and its angle can be adjusted by a pressure signal from the directional valve via a compensator.

Vane pumps were, at one time, commonly used on utility vehicles such as aerial buckets and ladders. Today, the vane pump is not commonly found on these mobile (truck-mounted) hydraulic systems as gear pumps are more widely accepted and available.

Within a vane pump, as the input shaft rotates it causes oil to be picked up between the vanes of the pump which is then transported to the pump’s outlet side. This is similar to how gear pumps work, but there is one set of vanes – versus a pair of gears – on a rotating cartridge in the pump housing. As the area between the vanes decreases on the outlet side and increases on the inlet side of the pump, oil is drawn in through the supply port and expelled through the outlet as the vane cartridge rotates due to the change in area.

Input shaft rotates, causing oil to be picked up between the vanes of the pump which is then transported to pump outlet side as area between vanes decreases on outlet side and increases on inlet side to draw oil through supply port and expel though outlet as vane cartridge rotates

A clutch pump is a small displacement gear pump equipped with a belt-driven, electromagnetic clutch, much like that found on a car’s air conditioner compressor. It is engaged when the operator turns on a switch inside the truck cab. Clutch pumps are frequently used where a transmission power take-off aperture is not provided or is not easily accessible. Common applications include aerial bucket trucks, wreckers and hay spikes. As a general rule clutch pumps cannot be used where pump output flows are in excess of 15 GPM as the engine drive belt is subject to slipping under higher loads.

What separates this pump from the traditional gear pump is its built-in pressure relief assembly and an integral three-position, three-way directional control valve. The dump pump is unsuited for continuous-duty applications because of its narrow, internal paths and the subsequent likelihood of excessive heat generation.

Dump pumps are often direct mounted to the power take-off; however, it is vital that the direct-coupled pumps be rigidly supported with an installer-supplied bracket to the transmission case with the pump’s weight at 70 lbs. With a dump pump, either a two- or three-line installation must be selected (two-line and three-line refer to the number of hoses used to plumb the pump); however, a dump pump can easily be converted from a two- to three-line installation. This is accomplished by inserting an inexpensive sleeve into the pump’s inlet port and uncapping the return port.

Many dump bodies can function adequately with a two-line installation if not left operating too long in neutral. When left operating in neutral for too long however, the most common dump pump failure occurs due to high temperatures. To prevent this failure, a three-line installation can be selected – which also provides additional benefits.

Pumps for refuse equipment include both dry valve and Live Pak pumps. Both conserve fuel while in the OFF mode, but have the ability to provide full flow when work is required. While both have designs based on that of standard gear pumps, the dry valve and Like Pak pumps incorporate additional, special valving.

Primarily used on refuse equipment, dry valve pumps are large displacement, front crankshaft-driven pumps. The dry valve pump encompasses a plunger-type valve in the pump inlet port. This special plunger-type valve restricts flow in the OFF mode and allows full flow in the ON mode. As a result, the horsepower draw is lowered, which saves fuel when the hydraulic system is not in use.

In the closed position, the dry valve allows just enough oil to pass through to maintain lubrication of the pump. This oil is then returned to the reservoir through a bleed valve and small return line. A bleed valve that is fully functioning is critical to the life of this type of pump, as pump failure induced by cavitation will result if the bleed valve becomes clogged by contaminates. Muncie Power Products also offer a butterfly-style dry valve, which eliminates the bleed valve requirement and allows for improved system efficiency.

It’s important to note that with the dry valve, wear plates and shaft seals differ from standard gear pumps. Trying to fit a standard gear pump to a dry valve likely will result in premature pump failure.

Encompasses plunger-type valve in the pump inlet port restricting flow in OFF mode, but allows full flow in ON mode lowering horsepower draw to save fuel when not in use

Wear plates and shaft seals differ from standard gear pumps – trying to fit standard gear pump to dry valve likely will result in premature pump failure

Live Pak pumps are also primarily used on refuse equipment and are engine crankshaft driven; however, the inlet on a Live Pak pump is not outfitted with a shut-off valve. With a Live Pak pump, the outlet incorporates a flow limiting valve. This is called a Live Pak valve. The valve acts as an unloading valve in OFF mode and a flow limiting valve in the ON mode. As a result, the hydraulic system speed is limited to keep within safe operating parameters.

Outlet incorporates flow limiting valve called Live Pak valve – acts as an unloading valve in OFF mode and flow limiting valve in ON mode restricting hydraulic system speed to keep within safe operating parameters

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A hydraulic pump can prove useful for a variety of different purposes, but it is important to first know how they work. Hydraulics is an important component of many types of equipment. If you’ve asked yourself “how do hydraulics work?”, read on to discover the answer.

A hydraulics system uses compressed fluid to transfer an applied force between two different points. There are quite a few basic parts that make up a hydraulics system, including a cylinder, filter, motor, fluid, valves, hose, pump, and reservoir.Cylinder: A hydraulic cylinder applies unidirectional force, and is considered the muscle of the system.

Hydraulic Fluid: This is extremely crucial to the system’s entire operation; it helps cool the system, drives away contaminants, and transfers energy.

Reservoir: Think of a reservoir as the hydraulic system’s septic tank. The reservoir stores the fluid and separates any solid contaminants from the fluid. It is also used for heat transfer.

Additionally, the construction industry relies on hydraulics systems for concrete pumping, brick molding, and more, while farmers may need hydraulics systems for their equipment. Another industry that relies on hydraulics systems is the automotive industry; vehicles use hydraulic systems for braking, steering, cooling, and more.

When it comes to answering the question: how do hydraulics work?, it is also important to talk about the components of a hydraulics system. The major components of a hydraulics system are the filter, hose, motor, cylinder, pump, valves, and reservoir. As previously mentioned, each component is needed to ensure that the entire system operates properly.

For example, the pressurized hydraulic fluid (located inside the cylinder) acts on both the piston and the rod. The cylinder’s strokes take the pressure or fluid power and turn it into mechanical force. When the piston and rod extend, the oil level in the reservoir decreases. The valves are another critical component. The first thing to note about these valves is that there are two primary kinds of valves in a hydraulics system.

The two varieties of valves are pressure relief directional control. The purpose of pressure relief valves is to make sure that the system’s components and plumbing are protected from pressure overload. Pressure relief valves also decrease how much output force cylinders and rotary motors can exert. With directional control valves, as the name implies, they control the fluid’s path throughout the hydraulics system.

Hydraulics do in fact require maintenance; you should make sure to check the filters and fluid levels on a regular basis. You should also replace the filters when necessary.

It is also a good idea for you to regularly inspect the entire system. If you opt for a professional inspection, the person performing the inspection will look for fissures, cracks, and wear. These inspections can help you avoid having to pay for expensive repairs later on. They can also limit the chance that the hydraulics system will seriously malfunction.

Do you still have questions about how hydraulic pumps work? Contact Panagon Systems. We have over 25 years of industry experience, and specialize in manufacturing and supplying hydraulic parts, including pumps and motors. If you’re searching for OEM-quality replacement parts, end your search with Panagon Systems. We offer replacement parts for Vickers, Eaton, Rexroth, and Caterpillar products.

The volumetric efficiency (internal leakage) of hydraulic pumps will increase with age. Consequently, to prevent unnecessary downtime it is vital to check the efficiency of hydraulic pumps on a routine schedule. The test kit needed to perform the test must be relatively easy to install, safe, and accurate. A flow meter test kit is ideal for testing hydraulic pumps without removing them from service. This portable test kit will give you the same result as testing your pump on a state-of-the-art test bench at a fraction of the cost.

The unit comes equipped with a load cell and pressure gauge which allows the user to load the pump in a safe manner while running tests. The variable area flowmeter on the unit provides a quick, visual flow indication on an easy-to-read linear scale to confirm that flow systems are operating properly. The flow meter on the unit offers enhanced reliability and minimal maintenance over the course of a long life expectancy. All items on the test kits are of the highest quality.

The unit comes complete with an adjustable load cell, glycerine-filled pressure gauge with rubber boot, and inline flow meter; ready to load-test your hydraulic pumps, motors, and other hydraulic components safely and accurately.

Repairing and supplying remanufactured and new Double A hydraulics – Double A hydraulics pumps, Double A hydraulics valves, and Double A hydraulics motors.  Search our online catalog or contact us and let us know how we can help you.

We can supply what you need or repair what you have. Before purchasing a new Double A Hydraulic unit, there may be a good chance that your current hydraulic pump, motor, valve or cylinder can be repaired. Double A hydraulics pump repairs, including motors, valves & cylinders comes with our two year warranty.

When purchasing, consider Double A hydraulics remanufactured or after market hydraulic units. Best of all they can get you back up and running for less than the cost of a new hydraulic unit. We will give you a free quote so you can compare costs for a new, repaired or remanufactured Double A hydraulic unit.

While the company is known as Double A Hydraulics, some customers have referred to them as A & A hydraulics, or A and A hydraulics. No matter how you spell it, there’s no denying the efficiency, power and precision of Double A’s hydraulic pumps, motors and valves. If you’re having difficulty finding the specific unit you need, contact us and let us point you in the right direction! We offer both new and remanufactured Double A hydraulic units, letting you save money without sacrificing quality.

Double A Hydraulics is a brand that specializes in producing high-quality hydraulic components such as pumps, valves, and cylinders. Their products are widely used in a variety of industries such as construction, agriculture, and manufacturing. The utility of Double A Hydraulics lies in their ability to provide reliable and efficient hydraulic solutions that can withstand tough operating conditions. Their products are known for their durability, precision, and ease of installation, which make them a popular choice among industry professionals.

Double A Hydraulics Pumps PFG series: PFG series pumps are unidirectional and have been assembled for either clockwise or count clockwise rotation facing the shaft. It is self-priming rotary gear type. Designed to be quiet and efficient, they can work with the different flow rates from 0.5 to 5gpm.