MP-FILTRI HP0371A25AN Replacement High Pressure Pipeline Hydraulic Filter Cartridge Fiberglass Industrial Hydraulic System Filter Spare Parts

Core basic parameters of the product

The HP0371A25AN replacement filter element is produced according to the DIN24550 industrial filter cartridge standard. Each batch of products undergoes integrity, pressure impact resistance, and filtration efficiency sampling testing. The key technical parameters are as follows:

-Product model: HP0371A25AN (domestic substitute)

-Filtration accuracy: 25 μm, β (c) ≥ 100, fiberglass deep filtration

-Adaptive filter: MP-FILTRI HP0371 series pressure pipeline filter

-Model code definition: HP=High pressure pipeline filter element; A=Inorganic fiberglass filter material; 25=25 μ m filtration accuracy; AN=NBR nitrile rubber seal

-Applicable media: mineral anti-wear hydraulic oil, gear lubricating oil, water ethylene glycol emulsion

-Maximum collapse pressure difference: 16 bar, withstand instantaneous alternating pressure difference impact during system start stop

-Working temperature range: -25 ℃ to+100 ℃

-Suggest replacing the 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 HP series filters

-Structural form: Multi layer gradient fiberglass folding filter layer, double-sided thickened galvanized carbon steel support skeleton inside and outside

Detailed introduction of product materials

HP0371A25AN focuses on high flux and high pollutant absorption. Fiberglass filter materials have stronger water resistance compared to paper filters, making them suitable for working conditions where oil contains a small amount of moisture on site, and avoiding the defect of ordinary paper filters expanding and damaging when exposed to water.

-Filter material: multi-layer gradient resin cured inorganic glass fiber filter material, using layered folding process. The outer layer prioritizes the interception of large iron filings and rust impurities, while the inner layer completes the interception of 25 μ m particles. The filter material undergoes high-temperature impregnation and solidification process, and the fibers are firmly bonded. Under long-term oil flow erosion, it is not easy for fibers to peel off and fall off, avoiding the entry of fine fibers into the oil circuit and causing secondary pollution. Gradient fouling structure, impurities are trapped layer by layer, delaying the rate of pressure difference rise and extending the service life of the filter element, suitable for industrial hydraulic systems with high impurity loads.

-Internal and External Support Skeleton: Thickened punched galvanized carbon steel bidirectional support skeleton enhances the overall anti extrusion ability, responds to the alternating pressure difference generated by equipment start stop, and prevents the filter element from being flattened and collapsed by oil flow when the pressure difference increases. The skeleton adopts a high porosity design to reduce flow resistance while ensuring mechanical strength, without adding additional pressure loss to the hydraulic oil supply system.

-Sealing parts: NBR nitrile rubber sealing ring is standard configuration, which is oil resistant, anti-aging, resistant to medium swelling and deformation, and ensures that the filter element closely fits with the filter seat to prevent oil bypass short circuit. For high-temperature working conditions or special flame retardant media, support upgrading FKM fluororubber seals.

-End caps and bonding process: Machine processed metal end caps are combined with 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 pressure differential impact testing, and will not peel or crack under pressure fluctuation conditions; All assembly dimensions are 1:1 replicated to the original factory standard, with precise disassembly and positioning, and smooth machine assembly.

Main applicable scenarios and industries

HP0371A25AN positioning pressure pipeline coarse to medium grade filtration is used to protect the main pump and ordinary valve group, and is not suitable for direct protection of high-precision components such as servo valves.

-Mining equipment industry: Hydraulic pressure pipeline filtration for mining excavation and conveying equipment, with high dust and oil impurity load in mining conditions, reducing the frequency of replacement for high pollutant glass fiber filter cartridges.

-Rubber and plastic machinery industry: purification of pressure oil circuits in large injection molding machines and extruder hydraulic stations to protect hydraulic pumps and directional valves.

-Metallurgical auxiliary equipment industry: rolling mill auxiliary hydraulic system, non servo circuit oil filtration and purification.

-Construction Machinery Industry: Main Oil Circuit Protection for Large Mobile Hydraulic Equipment.

-Power plant auxiliary equipment: boiler auxiliary equipment oil station, non precision control hydraulic oil station pipeline filtration.

Core advantages of the product

1. 25 μm high flux fiberglass filter material, better water resistance than paper filter element: Fiberglass material can withstand a small amount of free water in the oil, and will not quickly absorb water and fail like paper filter element, making it more suitable for a wider range of working conditions.

2. High sewage capacity and reduced on-site maintenance frequency: The gradient folded fiberglass structure has a large sewage capacity, and when faced with a large amount of metal debris and oil sludge, the pressure difference rises smoothly, reducing the number of downtime for filter replacement.

3. Reinforced with bidirectional metal skeleton to resist alternating pressure impact: The double-layer support structure has undergone repeated pressure difference cycling tests to adapt to pressure fluctuations caused by frequent start stop of heavy equipment.

4. Matching use of graded filtration scheme: As a pre coarse filter to intercept large particle impurities, it reduces the load on the precision filter element at the back end, and the overall system operation and maintenance cost is lower.

Core advantages of source factory substitution

Our factory has mature experience in mass manufacturing of MP-FILTRI HP series high-pressure filter cartridges. We have established a special factory inspection process for HP0371A25AN, and conduct pressure resistance testing, sealing testing, and filtration efficiency verification for each batch of samples. We strictly control the risks of fiber detachment, skeleton deformation, and delamination to ensure the reliability of industrial on-site operation. 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: Can this 25 μm fiberglass filter be used to protect servo valves?

A: Not recommended. 25 μ m can only intercept large particle impurities, and servo valves are high-precision components that require the use of 3 μ m and 6 μ m high-precision fiberglass filters.

Q2: Will a small amount of moisture on the fiberglass filter element cause rapid failure?

A: A small amount of free water will not cause damage to the fiberglass filter material; But if the oil contains a large amount of water for a long time, it will accelerate the oxidation of the oil to form sludge, and accelerate the blockage of the filter element. It is recommended to simultaneously investigate the source of the water inlet in the system.

Q3: How does the system match this filter element for graded filtration?

A: It is recommended to install HP0371A25AN as a pre coarse filter at the outlet of the oil pump, and install a 3 μ m precision fiberglass filter element in the rear pipeline for combined use, which not only increases the total amount of pollutants but also ensures the final cleanliness level of the oil.

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

A: Our factory has a complete product line for oil filtration. In addition to MP‑FILTRI replacement filters, we also produce PALL, PARKER, and Leemin series hydraulic filters, which are matched with mobile oil filter machine 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.

You may also be looking for

1. Coalescer&separator element

2. PALL Oil Element