The Benefits of Using Hydraulic Filter Elements

Hydraulic filter elements are used in a variety of hydraulic applications to remove contaminants from oil. There are many benefits to using hydraulic filter elements, including:

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Improved system performance

By removing contaminants, high pressure hydraulic filter elements help maintain the efficiency and performance of hydraulic systems.

Extended component life

Clean hydraulic fluid reduces wear and tear on system components, extending their lifespan.

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Reduced downtime

Proper filtration minimizes the risk of system failures, leading to reduced downtime and increased productivity.

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Cost savings

Regularly replacing hydraulic filter elements is more cost-effective than repairing or replacing damaged system components.

What Are the Common Types of Hydraulic Filter Elements

Hydraulic filter elements are used in hydraulic systems to remove contaminants from the fluid. There are a variety of different types of filter elements available, each with its own advantages and disadvantages. The type of filter element you choose will depend on the specific needs of your hydraulic filter system.

The most common type of hydraulic filter element is the pleated paper filter. Pleated paper filters are made from a variety of materials, including cellulose, glass fiber, and synthetic fibers. They are typically used in applications where high levels of contamination are expected. Pleated paper filters can be used in both oil-based and water-based hydraulic fluids.

Another common type of hydraulic filter element is the spin-on filter. Spin-on filters consist of a cylindrical housing that contains a pleated paper or synthetic fiber element. They are designed for use in applications where space is limited and easy maintenance is required. Spin-on filters can be used in both oil-based and water-based hydraulic fluids.

Cartridge-type filter elements are also available for use in hydraulic systems. Cartridge-type filters consist of a housing that contains one or more pleated paper or synthetic fiber elements. They offer high levels of contaminant removal and long service life

Hydraulic Filter Elements: Paper or Glass

Hydraulic filter elements divide into two main categories: Surface and depth. Surface filters typically have a wire mesh construction like, for example, a suction strainer. Depth filters are constructed from a matrix of fibres. Cellulose (paper), plastic, glass and metal can all be used to construct a depth filter.

Man-made glass fibers are smaller and more uniform than naturally occurring cellulose fibers. When glass fibers are woven into a layer, the result is a more consistent pore structure which captures and retains dirt better (high filtration efficiency). Plus glass's smaller fiber diameter means there's more of them in a given volume and therefore more spaces to catch and retain dirt. Size for size, this gives glass filter media more dirt holding capacity than cellulose. Glass-fiber elements have the added benefit of superior fluid compatibility. They're suitable for use with mineral, synthetic and water based fluids.

The superior performance of glass elements does come at cost in terms of the element's flow resistance and therefore the pressure drop across it. As you'd expect, filter efficiency and pressure drop go together, hand-in-glove. Cellulose elements are low efficiency; low pressure drop. Glass elements are high efficiency; high pressure drop-all other things equal.

And as is often the case, with higher performance comes higher price. Cellulose elements are cheap to buy; glass are not. But this is not the whole story. Because it's not the absolute price of the element that matters. It's the dollars per gram or ounce of dirt captured and retained that matters. With this in mind, glass hydraulic filter elements can last three to five times longer than equivalent cellulose elements. Which means if you're ever doing a detailed cost comparison, don't forget to include the cost of carrying out the element changes. If a glass hydraulic filter element lasts three times as long, you save two filter changes. If it lasts five times as long, you save four filter changes.

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Features of Hydraulic Filter Element

The hydraulic filter element can be used for filtering hydraulic oil, water glycol, diesel oil, processing fluid, lubricating oil, coolant, gasoline, process fluid, turbine and compressor lubricating oil, synthetic lubricating oil and more chemicals. And oil and more chemicals.

It is divided into a high-pressure section, medium-pressure section, oil return section, and oil absorption section.

Divided into high, middle, and low precision grades. 2–5um is high precision, 10–15um is medium precision, and 15–25um is low precision.

In order to compress the overall dimensions of the finished filter element and increase the filtering area, the filter layer is generally folded into a corrugated shape, and the pleating height of the hydraulic filter element is generally below 20mm.

Generally, the pressure difference of hydraulic filter elements is 0.35–0.4MPa, but some special filter elements are required to bear high-pressure differences, and the maximum requirement is 32MPa, even 42MPa, which is equivalent to the system pressure.

The highest temperature, some requirements of 135℃.

What Is The Function Of A Hydraulic Filter Element

Hydraulic filter elements are mainly used in varieties of hydraulic system in the industry. These filters have many advantages that ensures safe working of hydraulic system. Some of those function of hydraulic filter elements are listed below:
● Remove contaminants in hydraulic systems which is responsible for 80% of systems failure.
● Reduce the cost of running hydraulic systems by preventing system downtime and frequent wear of components due to contaminatio.
● Protect hydraulic systems components such as fittings, hoses, valves, pumps, etc. From contaminants that would otherwise cause damage.
● Reduces frequency of systems maintenance and component replacement.
● Ensures hydraulic system is safe and clean.

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How to Clean a Hydraulic Filter Elements

If a hydraulic filter element is removable, then it's most likely to be cleanable. In this post we look at how to clean a hydraulic filter elements in the most effective manner. The result should be that you can perform more of your own maintenance and therefore can save on cost of parts and of expertise.

To remove the filter from the filter canister, it's important to follow the instructions of the manufacturer. Once the filter has been removed, it can then be cleaned, placed back into its position and re-used. Industrial environments are quite often dusty and dirty, and although hydraulic systems are usually closed, you will still need to factor the cleaning task into your regular engineer maintenance schedule to ensure the best performance from your system.

You will need the following pieces of equipment in order to clean your hydraulic filter elements:
● A gallon of hydraulic fluid
● A solvent tank cleaning system
● A small brush
● A small bucket
● A pair of rubber gloves

Start the cleaning process by placing the hydraulic filter elements into the solvent tank. Use the solvent to clean the filter and then rinse it off as you use the small brush to remove any debris and dirt. The solvent will work on dissolving the dirt, so be generous with your application of it. Once the cleaning is finished, you can then shake off the excess solvent from the filter.

Now pour the hydraulic fluid into the bucket and place the filter into it. Now swish the filter in the fluid for a few minutes. This will help to remove any traces of solvent. You can now reinsert the filter into its position. Keeping your oil filter clean will help to keep the entire hydraulic system cleaner. It's something that is worth the investment in both trouble and cost.

How to Choose Hydraulic Filter Elements

When selecting hydraulic filter element it's best to determine the most sensitive component in the system, and then select the filtration cleanliness level for that component. When selecting high pressure hydraulic filter elements, it is essential to consider the following factors:

01/

Pressure rating: Ensure that the hydraulic filter element can withstand the maximum operating pressure of your hydraulic system.

02/

Efficiency rating: Look for hydraulic filter elements with high filtration efficiency to remove even the smallest particles from the hydraulic fluid.

03/

Flow rate: Consider the flow rate requirements of your hydraulic system to choose a hydraulic filter element that can handle the desired flow.

04/

Dirt-holding capacity: A higher dirt-holding capacity means the hydraulic filter element can trap more contaminants before requiring replacement.

What Are the Indicators That Hydraulic Filter Elements Needs to Be Changed?

Visual inspection indication
Visual inspection can help assess the condition of the hydraulic filter elements. When a filter is subject to harsh conditions, degradation of the media or other visual defects can occur. Unless there is significant visible damage, this method is highly subjective and provides very little consistency across maintenance personnel.

Time-based indication
A simple approach to changing a filter is to follow a specified maintenance interval based on experience with the process and the equipment. For example, if the equipment oil must be changed every 2000, 4000, or 8000 hours, schedule the replacement filter change at the same time. This method assumes that the filter is not clogging and degrading equipment performance during the specified time frame

Differential pressure indication
Pressure differential is widely used as a forward indicator that it is time to change hydraulic filter elements. This is probably the best and most accurate method of assessing the remaining life of hydraulic filter elements assuming there are no tears or holes in the filter media. As a filter becomes loaded or saturated with contaminant, the restriction of air flow will increase. As a result, the pressure drop across the filter will also increase. By measuring the clean pressure drop across a filter at installation, you can closely monitor the differential pressure. Simple gauges or pressure drop indicators (pdi) can be used in combination with a filter so that a change out point can be determined.

Declining equipment performance indication
Filtration by its nature will place a restriction on the air flow to your machinery. A well-sized filter will minimize this restriction at start up. As the hydraulic filter elements becomes dirty and begins to clog with contaminants, the air-moving equipment must work harder to overcome the increased restriction of air flow caused by the clogged media. If a filter is not changed or maintained, the required system performance may become more difficult to achieve, and the process may need to shut down. The result can be additional energy usage, as your equipment works harder to counteract the restriction. A well-sized and maintained filter will not just protect the equipment, but also contribute to reduced energy usage.

Contaminated process indication
If your process outputs are contaminated, this may be another indication that it is time to change your filter. Scrapping finished or in process goods can be costly. If an inlet filter to a blower has failed in a plastics pneumatic conveying application, atmospheric dust and debris can end up in the plastic being conveyed. Think of injection molding or thin film applications: Any atmospheric dust particles could ruin the batch.

Contaminated environment indication
In oil mist eliminators, when a coalescing element clogs, it can start to bypass oil mist and start "smoking". Many factors contribute to clogging, including particulate getting into the discharge air stream, or emulsification of lubricating oil reaching the exhaust filter. In either case, bypass of oil mist can be an indication that it is time to change the coalescing hydraulic filter elements.

System failure indication
If hydraulic filter elements is neglected and reaches its maximum pressure differential rating, it could collapse. A collapsed filter will allow bypass and the equipment could ingest harmful contaminants which damage the internals. This is the ultimate indicator that it is time for a replacement hydraulic filter elements…and maybe time for a costly rebuild or new piece of equipment as well.

Our Factory

Xinxiang Shunhe Filter Equipment Co., Ltd. is a comprehensive enterprise specializing in industrial filters, integrating scientific research, manufacturing and sales. The company has a group of design and manufacturing teams with strong technical force, high-quality management personnel, and sophisticated filter processing and testing equipment. The products include various oil filters, hydraulic oil filters, air compressor filters, refrigeration compressor filters, various oil filter elements, which can be interchanged with nearly one hundred international famous brand filter elements. The company has long been committed to the localization of imported equipment filters. Based on the concept of high-quality products, it has continuously introduced internationally advanced technology and experience. Products are widely used in petroleum, chemical, refrigeration, aviation, metallurgy, power and other industrial fields , And get high praise from customers.

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Q: What are hydraulic filter elements?

A: Hydraulic filter elements are components used in hydraulic systems to remove impurities and contaminants from hydraulic fluids. These elements are typically made of high-quality materials such as stainless steel or synthetic fibers. They are designed to withstand high pressure and provide maximum filtration efficiency.

Q: How do hydraulic filter elements work?

A: Hydraulic filter elements work on the principle of filtration. When hydraulic fluid enters the filter element, contaminants such as dirt, debris, and metal particles are trapped by the filter media. The clean fluid then flows out of the filter, ensuring that only clean and filtered fluid reaches the hydraulic system's components.

Q: Why do you need a hydraulic filter element?

A: A hydraulic filter is a component within a hydraulic system that removes damaging particulates by forcing hydraulic fluid through a porous filter element. The hydraulic filter element catches contaminants and prevents them from re-entering the fluid flow and damaging other pieces of equipment further downstream.

Q: What are hydraulic filter elements made of?

A: Hydraulic filter elements may be divided into two classes: Surface and depth. Surface filters are made of closely woven fabric or treated paper with a uniform pore size. Fluid flows through the pores of the filter material and contaminants are stropped on the filter's surface. This type of filter element is designed to prevent the passage of a high percentage of solids of a specific size.

Q: What is the function of a hydraulic filter element?

A: To reduce tear and wear of hydraulic system caused by machine partabrasion, hydraulic filter elements toremove contaminants such as metal powder, dirt particles, unwantedchemicals in hydraulic system.
● Prevent contamination, remove very tiny particles, improve theperformance of the entire system
● Reduce system or equipment downtime, decrease the cost ofrunning hydraulic system
● Protect hydraulic systems components such as fittings, valves,pumps from contaminants that would otherwise cause damage
● Reduce frequency of systems maintenance and componentreplacement
● Ensures hydraulic system is safe and clean, prolong service life ofcomponents

Q: What is the difference between filter and hydraulic filter elements?

A: Filters are designed to capture and remove impurities, particles, chemicals, or microorganisms from the fluid passing through them. Hydraulic filter elements: On the other hand, an element is a specific part or component within the filter that performs the actual filtration.

Q: What are the characteristics of hydraulic filter elements?

A: There are two main components of filter elements. The first is the design of the filter element itself, and the second is the type of media that is used in such elements. Hydraulic filter elements have some attributes that are immediately obvious to the casual observer, such as height, inside diameter, outside diameter, media concentration, type of liner, seal design and the way media and components are glued or potted together.

Q: What are the indicators that hydraulic filter elements needs to be changed?

A: Visual inspection indication.
Time-based indication.
Differential pressure indication.
Declining equipment performance indication.
Contaminated process indication.
Contaminated environment indication.
System failure indication.

Q: What size are hydraulic filter elements?

A: There are many types of hydraulic filter element sizes, lengths and shapes. Manufacturers make these filters in reasonably standardized lengths and diameters - whether it is 2.5 "or 40".

Q: What is the micron rating of a hydraulic filter element?

A: The micron rating is the size at which particles are retained by the filter. For example, a five-micron filter will stop particles of five microns or larger from passing through the media. A micron is a micrometre, which is a thousandth of a millimetre. To put this size into context, a human hair is between 40 to 90 microns in diameter, bacteria range from 0.5 to 50 microns and particles above 50 microns can be seen by the naked eye.

Q: What would happen if the hydraulic filter elements was left out?

A: This is partly because many drivers don't know what their hydraulic filter elements does and what happens when you don't c change your air filter. But given how important your vehicle's air filter is, let's explore how it contributes to the life and longevity of your vehicle. The air filter is there to prevent dirt and debris from entering the engine and causing major issues. Without it, or without a properly functioning filter, your vehicle will experience loss of power, reduced fuel economy, and even engine failure.

Q: How does hydraulic filter elements work?

A: The filter traps the solid particles larger than the component's pore size on the surface. The other way is trapping within the fibers of the element. This process is known as the "mechanical filtration" mechanism. The trapped particles accumulate as the liquid or gas continues to flow through the filter element.

Q: What are fhydraulic filter elements made of?

A: Surface filters are made of closely woven fabric or treated paper with a uniform pore size. Fluid flows through the pores of the filter material and contaminants are stropped on the filter's surface.

Q: What is the effect of clogged hydraulic filter elements?

A: When your hydraulic filter elements is dirty, it often limits the amount of clean air that goes to your engine. When there is not enough air going to your engine, it reduces the power of your vehicle as well as its performance. For example, you may notice that your car is slow to respond when you push the accelerator.

Q: How to determine if the hydraulic filter elements needs to be replaced?

A: 6 signs it's time to replace your hydraulic filter elements
• A dirty or discolored filter.
• Odd engine noises.
• Check engine light.
• Poor performance.
• Weak fuel economy.
• Black smoke from the exhaust.

Q: When should I change my hydraulic filter elements?

A: As the solids build in the hydraulic filter elements the pressure drop will very slowly increase as more solid particles are captured. It is recommended that a disposable filter element is changed before the pressure drop reaches 0.3 to 0.5 bar level and most definitely before it reaches 0.7 bar.

Q: What is the pressure drop on hydraulic filter elements?

A: The hydraulic filter elements pressure drop Ape is proportional to its viscosity (mm²/s), the corrective factor Y have to be used in case of an oil viscosity different than 30 mm²/s (cSt). Filter element with ISO 3968. Ap varies proportionally with density.

Q: What are the materials used in hydraulic filter elements?

A: Hydraulic Oil Filter Specifications: Filter material: Glass fiber, paper, stainless steel wire mesh. Filtration accuracy: 1μm ~ 200μm. Working pressure: 10bar-420bar. Working temperature: -30°C~+100°C.

Q: What would happen if the hydraulic filter elements was left out?

A: The hydraulic filter elements is there to prevent dirt and debris from entering the engine and causing major issues. Without it, or without a properly functioning filter, your vehicle will experience loss of power, reduced fuel economy, and even engine failure.

Q: How do you clean hydraulic filter elements?

A: Start the cleaning process by placing the metal filter into the solvent tank. Use the solvent to clean the filter and then rinse it off as you use the small brush to remove any debris and dirt. The solvent will work on dissolving the dirt, so be generous with your application of it.