FILTREC D140G25AV hydraulic replacement oil filter element 25 μm fiberglass return oil pipeline filter element

Core basic parameters of the product

The D140G25AV replacement filter element is manufactured in accordance with FILTREC's original technical specifications, and the finished product is verified according to the general testing standards for industrial filters. All indicators meet the requirements for on-site interchangeability. The core technical parameters are as follows:

-Product model: D140G25AV (domestic substitute)

-Filtering accuracy: 25 μ m, β (c) ≥ 200, solid particles intercepted and filtered in the return oil pipeline

-Adaptive filter: FILTREC D140 series return oil filter

-Applicable media: mineral anti-wear hydraulic oil, circulating lubricating oil, compatible with conventional HL and HM hydraulic oils

-Maximum allowable breakdown pressure difference: 21 bar, capable of withstanding instantaneous pressure difference fluctuations on the return oil side

-Working temperature range: -25 ℃~+120 ℃, stable performance under temperature alternating conditions

-Suggest replacing the pressure difference: 0.2MPa. If the pressure difference reaches the set value, replace the filter element in a timely manner

-Structural form: Multi layer gradient glass fiber folding structure, equipped with metal support skeleton inside and outside

-Oil flow direction: from outside to inside, adapted to the standard flow direction of the return oil filter

Detailed introduction of product materials

In response to the high impurity content and frequent flow fluctuations in the return oil pipeline, various components are optimized to avoid common faults such as filter material breakdown, skeleton flattening, and end cap detachment in low-priced replacement parts.

-Filter material: Multi layer gradient resin cured fiberglass filter material, with the outer layer intercepting large particles of sludge and debris, and the inner layer completing 25 μ m precision filtration. The filter material has undergone high-temperature curing treatment, and the fibers are firmly bonded. The fibers will not fall off after repeated oil flow flushing, avoiding secondary pollution to the fuel tank; Excellent pollutant holding capacity, capable of accommodating a large amount of pollutants in the return oil system, extending the actual service life of the filter element.

-Internal and External Support Skeleton: Galvanized punched metal skeleton enhances the overall anti extrusion ability of the filter element, resists flow impact and pressure difference changes on the return oil side, and prevents filter element collapse and failure; The high porosity of the skeleton effectively controls the overall flow resistance of the return oil pipeline, without affecting the system's return oil flow rate.

-Sealing parts: standard NBR nitrile rubber sealing ring, oil resistant and anti-aging, ensuring reliable sealing between filter element and filter seat, preventing oil return short circuit bypass; In the face of high temperature or special medium conditions, FKM fluororubber seals can be upgraded.

-End cap structure: Metal stamped end cap, combined with high-strength hot pressing bonding process and filter material skeleton, with high bonding strength, and is not easy to crack or peel during disassembly and maintenance process; The installation dimensions are strictly standardized with the original factory, and on-site disassembly and exchange are smooth.

Main applicable scenarios and industries

The D140G25AV positioning hydraulic system return oil filter is installed in the hydraulic system return oil tank pipeline and is not recommended for high-pressure oil circuits. Its main application scenarios are as follows:

-Metallurgical industry: hydraulic station return oil filtration for rolling mills and continuous casting equipment, intercepting metal debris and oil sludge impurities generated by equipment operation.

-Machine tool equipment industry: large machining centers, complete sets of automated hydraulic stations for oil purification, protecting the cleanliness of oil tanks.

-In the field of construction machinery, the return oil system of large hydraulic equipment is filtered to reduce the accumulation of pollutants inside the oil tank.

-Power industry: Impurity filtration in the return oil pipelines of power plant auxiliary hydraulic and lubricating oil stations.

-Industrial support: Equipment maintenance and spare parts support for new projects equipped with FILTREC D140 series filters.

Core advantages of the product

1. Special optimization of oil return conditions, high flux and low resistance: The folding area of the filter material is designed to adapt to high oil return flow conditions, with a low initial pressure difference that will not create additional obstacles to the system's oil return, ensuring smooth circulation of the hydraulic system.

2. High pollutant holding capacity and reduced replacement frequency: Gradient layered pollutant holding structure, with pollutants distributed in different filter layers, delays the rate of pressure difference rise, suitable for return oil side conditions with more impurities, and reduces maintenance workload.

3. Anti flow impact, stable and reliable structure: Fiberglass filter material combined with reinforced metal frame can withstand the flow fluctuations caused by the start and stop of the return oil pipeline, reducing the risk of filter material damage and filter element deformation and failure.

4. Pre return oil purification, protecting the entire hydraulic system: intercepting impurities before the oil returns to the tank, reducing the sedimentation of pollutants in the tank, indirectly protecting the oil pump, valves, and downstream precision filter elements.

Core advantages of source factory substitution

Our factory has experience in mass production of FILTREC D series filter cartridges. We conduct special factory inspections for fluctuating flow conditions of return oil filter cartridges, controlling key indicators such as pressure resistance, sealing, and filtration efficiency to prevent defective products from flowing out. As a production source, cutting off the premium of imported brands is suitable for annual maintenance of factories and bulk bidding and procurement of projects.

Frequently Asked Questions (FAQ)

Q1: Can this filter be installed in high-pressure pipelines for use?

A: Not recommended. This model is designed for oil return filtration, and the corresponding high-pressure series filter element should be selected for the high-pressure pressure pipeline to ensure safe use.

Q2: What is the reason for the rapid increase in filter pressure difference?

A: Generally, it is caused by a high total amount of pollutants inside the system, and it is necessary to regularly monitor the oil status. If the pressure difference reaches 0.2 MPa, it is recommended to replace the filter element in a timely manner.

Q3: Can the sealing components be replaced with fluororubber material?

A: Support, in case of high-temperature oil or special medium conditions, please specify when placing the order that FKM fluororubber seals can be upgraded.

Q4: Apart from HYDAC filter cartridges, what other oil filtration products do you have?

A: Our factory has a complete product line for oil filtration. In addition to HYDAC replacement filters, we also produce PALL, PARKER, and Leemin series hydraulic filters, which are matched with mobile oil filters and coalescence dehydration filters to achieve integrated filtration of oil impurities and water.

Q5: What other filtering categories does the factory produce?

A: The source manufacturer covers industrial oil filtration, industrial water filtration, natural gas filtration, air filtration, and can produce imported replacement filters, domestic standard filters, and complete sets of filtration equipment. It supplies to multiple industries such as power, metallurgy, chemical, and gas.

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