STAUFF LS020E03B Replacement Hydraulic Oil Filter High Precision Low Pressure Pipeline Rough Rolling Machine Hydraulic Station

Core basic parameters of the product

The LS020E03B replacement filter element is produced according to the DIN24550 industrial filter standard. The finished product undergoes integrity, pressure impact resistance, and filtration efficiency sampling verification. The key technical parameters are as follows:

-Product model: LS020E03B (domestic substitute)

-Filtering accuracy: 3 μm, β (c) ≥ 200, absolute filtering grade

-Compatible filter: STAUFF LS020 series compact high-pressure pipeline filter

-Model code definition: LS=Compact high-pressure filter element; E=Inorganic fiberglass filter material; 03=3 μ m accuracy; B=NBR nitrile rubber seal

-Applicable media: mineral anti-wear hydraulic oil, gear lubricating oil

-Maximum collapse pressure difference: 22bar, able to withstand instantaneous alternating pressure difference impact of high-pressure system

-Working temperature range: -25 ℃ to+105 ℃

-Recommended replacement pressure difference: 0.2MPa. If the pressure difference reaches the set threshold, replace the filter element in a timely manner

-Oil flow direction: from outside to inside, matching the standard flow direction of LS020 series filters

-Structural form: Multi layer ultra-fine gradient glass fiber folding, thickened galvanized carbon steel internal and external bidirectional support skeleton

Detailed introduction of product materials

LS020E03B belongs to a small shell high-precision high-pressure filter element, with strict requirements for filter material, skeleton, and bonding process in a compact space. The key is to avoid fatal defects such as filter material breakdown, fiber detachment, skeleton flattening, and end cap delamination of low-priced substitute parts in the market, and prevent small fibers from entering the servo circuit, causing permanent damage to expensive servo components.

-Filter material: Multi layer gradient ultra-fine resin cured fiberglass filter material, using layered folding process, the outer layer intercepts larger impurity particles, and the inner layer completes 3 μm precision interception. The filter material undergoes high-temperature impregnation and solidification process, and the fibers are firmly bonded to each other. Under repeated high-pressure oil flow erosion conditions, fiber peeling and detachment will not occur, preventing fine fiber wear on the servo valve core. Gradient layered pollutant absorption design, where impurities are trapped in different filter layers, improves the short board of high-precision filter cartridges that are prone to rapid clogging, slows down the rate of pressure difference rise, and extends the service life of the filter cartridge.

-Internal and External Support Skeleton: Thickened punched galvanized carbon steel bidirectional support skeleton, strengthened anti extrusion ability, to cope with the alternating high pressure impact caused by equipment start and stop, and prevent the filter element from being flattened and collapsed due to pressure difference; The skeleton adopts a high porosity design, which controls the initial pressure difference of the filter element without interfering with the dynamic response performance of the servo oil circuit while ensuring mechanical strength.

-Sealing parts: NBR nitrile rubber sealing ring is standard, which is oil resistant, anti-aging, and resistant to medium swelling, ensuring that the filter element and the filter seat are fully fitted, and avoiding medium bypass short circuit. Support the upgrade of FKM fluororubber seals for special media such as high-temperature working conditions and phosphate ester fire-resistant oil.

-End caps and bonding process: Machine processed metal end caps, using high-strength two-component adhesives for hot pressing composite molding. The bonding strength between the filter material, skeleton, and end caps is tested by cyclic differential pressure impact testing, and will not peel or crack under high-pressure alternating environments; Compact size, all assembly dimensions 1:1 replica of the original factory standard, precise disassembly and positioning inside the narrow filter housing.

Main applicable scenarios and industries

LS020E03B positioning compact high-pressure pressure pipeline precision filtration, installed in the servo control oil circuit downstream of the oil pump, not recommended for use in return or suction pipelines.

-Precision machine tool equipment: small machining centers, hydraulic servo systems for CNC equipment, protection of proportional valves and servo valves in narrow spaces, reducing the probability of valve failure.

-Experimental testing equipment: small hydraulic fatigue test bench, performance test bench, high-pressure oil precision purification.

-Power industry: Small scale speed regulation control oil station high-voltage precision filtration for power plants, suitable for domestic replacement of imported complete sets of compact filtration equipment.

-Metallurgical industry: small servo actuator control circuit filtration.

Core advantages of the product

1. 3 μm high-precision interception, protecting expensive servo components: stabilizing the β value filtering level, effectively intercepting small hard particles, reducing servo valve jamming and valve core strain, ensuring equipment control accuracy, and reducing economic losses caused by shutdown maintenance.

2. Compact design, suitable for small installation spaces, compact size, suitable for precision filtration modification of limited internal space points of equipment.

3. Gradient fouling design to alleviate the pain point of easy clogging of high-precision filter elements: Multi layer gradient filter materials optimize impurity distribution, resulting in a gentle increase in pressure difference, effectively extending the service life compared to ordinary single-layer high-precision filter elements.

4. Controllable low initial pressure difference, does not interfere with servo system response: optimizes the folding arrangement of filter materials and the opening rate of the skeleton, controls the flow resistance while ensuring high precision, and does not affect the dynamic response of the servo oil circuit.

Core advantages of source factory substitution

Our factory has mature experience in mass production of STAUFF LS compact high-pressure filter cartridges. We have established a special factory inspection process for 3 μm high-precision LS020E03B filter cartridges, and conduct pressure testing, sealing testing, and filtration efficiency verification for each batch of samples. We strictly control the risk of fiber detachment and prevent unqualified products from flowing to precision equipment sites. As a source manufacturer, we have cut the premium of multi-layer intermediaries for imported brands. We not only support single sample machine testing, but also undertake annual factory maintenance and large-scale bidding procurement for engineering projects. We can customize and upgrade filter and sealing materials according to the customer's on-site media, temperature, and pressure conditions.

Frequently Asked Questions (FAQ)

Q1: How to deal with the rapid increase in pressure difference of high-precision filter cartridges?

A: High precision filter cartridges are highly sensitive to impurities, and a rapid increase in pressure difference indicates a large load of pollutants in the system; Suggest adding pre coarse filtration to the front-end, regularly sampling and testing the oil contamination level, and replacing the filter element in a timely manner when the pressure difference reaches 0.2 MPa.

Q3: What are the precautions for configuring the bypass valve of a compact servo filter?

A: The collapse pressure difference of the filter element is 22 bar, and the opening pressure of the bypass valve must be lower than the collapse pressure difference of the filter element; It is not recommended for servo systems to rely on bypass valves for long-term operation. Priority should be given to configuring differential pressure transmitters, and filter cartridges should be replaced in case of differential pressure alarms.

Q3: Can a narrow space servo system rely solely on this 3 μm filter element to ensure clean oil? 

A: It's not possible. Suggest using a graded filtration scheme, combining pre coarse filtration with this precision filter element; Regularly test oil samples to reduce the generation of internal pollutants in the system from the source.

Q4: Apart from STAUFF filter elements, what other oil filtration products do you have?

A: Our factory has a complete line of oil filtration products, which can meet the purification needs of industrial oil products under all working conditions. In addition to the full range of STAUFF replacement oil filters, we also specialize in PALL, HYDAC, Leemin and other full range oil filters and filters, matched with LYC-A series movable oil filter machine and oil coalescence dehydration filters, providing one-stop solutions for industrial oil impurity removal and water filtration problems.

Q5: What other filtering categories are included in the factory's main business?

A: Our factory is a one-stop industrial filtration source manufacturer, with main business covering four core areas: industrial oil filtration, industrial water filtration, natural gas filtration, and industrial air filtration. We can customize various imported substitute filter elements, domestic standard filter elements, and complete sets of filtration equipment, suitable for multiple industry scenarios such as power, metallurgy, chemical, gas, and shipbuilding.

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