MAHLE PI8311DRG40 Replacement Oil Filter Element 40 μm Washable Stainless Steel Oil Absorption Coarse Metal Mesh Filter Cartridge

Core basic parameters of the product

The PI8311DRG40 replacement filter element is produced in accordance with the original specifications of the MAHLE PI83 series DRG metal mesh filter cartridge, and follows the relevant testing standards for industrial hydraulic filter cartridges. The installation dimensions, pressure performance, and flow capacity are completely interchangeable with the original filter cartridge, and the core technical parameters are as follows:

-Product model: PI8311DRG40 (domestic substitute)

-Filtration accuracy: 40 μ m, stainless steel woven mesh surface filtration, suitable for oil absorption and coarse filtration conditions

-Adaptive filter: MAHLE PI83 series filter, pump suction filter assembly

-Suitable media: mineral hydraulic oil, circulating lubricating oil, can adapt to some high viscosity oil products and emulsion media

-Maximum allowable pressure difference: 20 bar, with strong ability to withstand pressure drop collapse

-Working temperature range: -10 ℃~+120 ℃, temperature fluctuation environment, filter structure remains stable

-Suggested cleaning/replacement of pressure difference: 0.15MPa, prioritize cleaning when pressure difference is reached, and replace if the filter screen is damaged

-Structural form: Stainless steel woven mesh folding structure, with internal and external metal support skeleton, washable and recyclable

-Oil flow direction: from outside to inside, nominal flow rate suitable for 110L/min system operating conditions

Detailed introduction of product materials

PI8311DRG40 is a metal mesh coarse filter used as the suction end. Unlike deep type fiberglass filters, it has higher requirements for flow capacity, oil flow impact resistance, and cleaning resistance. The material configuration of each component is as follows:

-Filter material: multi-layer 304 stainless steel twill woven mesh, with uniform and transparent mesh holes, 40 μ m graded interception of large particle impurities, belongs to surface filtration, and pollutants are retained on the outside of the filter screen for easy blowing and cleaning. The filter screen has undergone passivation treatment and is resistant to oil corrosion. After repeated air blowing and flushing, it is not easily deformed, fiber shedding will not occur, and it will not cause secondary pollution to the oil. It is suitable for oil suction side working conditions with high impurity content.

-Internal and external support skeleton: 304 stainless steel punching support cylinder, with high opening rate of the skeleton, minimizing negative pressure resistance on the suction side; The overall rigidity is good, resisting the negative pressure impact caused by pump start stop, avoiding the filter screen from being flattened and collapsing, and ensuring smooth oil supply.

-Sealing parts: standard NBR nitrile rubber sealing ring, oil resistant and anti-aging, suitable for normal temperature hydraulic lubricating oil working condition, to ensure reliable sealing between filter element and filter seat, and prevent cavitation caused by air suction system; FKM fluororubber seals can be upgraded for high-temperature media.

-End cap structure: The metal end cap is treated with anti-corrosion, and is firmly combined with the filter frame using pressure riveting technology. No adhesive glue is used, and multiple disassembly and cleaning will not cause delamination or cracking; The installation positioning dimensions are strictly aligned with the original factory, and the disassembly and exchange are smooth.

Main applicable scenarios and industries

PI8311DRG40 positioning oil suction filtration, system pre coarse filtration, not used for precision pressure pipeline fine filtration in the back-end. The core applicable scenarios are as follows:

-Construction machinery industry: Large hydraulic equipment oil tank pump port suction filtration, protecting hydraulic pumps from damage caused by large particle impurities.

-Machine tool equipment industry: Heavy duty machine tool hydraulic station oil suction port coarse filtration, intercepting rust and welding slag impurities inside the oil tank.

-Metallurgical industry: Pre filtration of hydraulic oil tanks for rolling mills and continuous casting auxiliary equipment to reduce the pollutant load on the back-end filter element.

-General industrial equipment: high viscosity lubricating oil circuit, cooling and lubricating medium pretreatment filtration.

-Equipment maintenance support: replacement of spare parts for MAHLE PI83 series filter equipment, procurement of bulk spare parts for the project.

Core advantages of the product

1. Extremely low initial pressure difference, suitable for pump suction conditions: The metal mesh has low flow resistance and will not bring additional negative pressure to the suction pipeline, effectively avoiding pump failures such as cavitation and increased noise.

2. It can be repeatedly cleaned and regenerated to reduce operation and maintenance consumption: impurities are concentrated on the outer surface of the filter screen, which can be cleaned by blowing with compressed air or flushing with oil. It can be reused multiple times to reduce the frequency of spare parts procurement.

3. Metal structure anti impact and anti negative pressure: The all stainless steel filter frame combination can withstand negative pressure fluctuations caused by pump start and stop, making it suitable for harsh fuel tank conditions with high impurity content.

4. Pre coarse filter protection to protect the entire hydraulic system: filter out large solid impurities in the oil tank in advance, reduce downstream precision filter element and valve wear, and extend the service life of the entire hydraulic components.

5. Complete replacement, fast supply response: 1:1 replica of the original appearance and sealing structure, direct disassembly and assembly on site, no need to modify the equipment, significantly shortened delivery time compared to imported parts.

Core advantages of source factory substitution

Our factory has the mass production capacity of DRG series washable metal filter cartridges. We conduct special inspections for negative pressure conditions of oil suction filter cartridges, control key indicators such as welding, pressing, pressure resistance, and flow passage of filter cartridges, and avoid the problems of common replacement parts on the market that are prone to suction flattening and welding point cracking. As a production source, it eliminates the premium of brand intermediaries and is suitable for equipment maintenance and bulk procurement of project support.

Frequently Asked Questions (FAQ)

Q1: Can this filter be used for precision filtration of pressure pipelines?

A: Not recommended. This filter element belongs to 40 μm surface coarse filtration, suitable for oil absorption and pre-treatment; Precision filtration of pressure pipelines requires the use of corresponding precision fiberglass depth filter cartridges.

Q2: How to clean the filter element after the pressure difference rises?

A: When the pressure difference reaches 0.15MPa, it is recommended to remove it and prioritize using dry compressed air to blow from the inside out. Alternatively, clean oil can be used for flushing; If the filter screen is deformed or damaged, a new filter element must be replaced.

Q3: Can it be used for cooling emulsion media systems?

A: Standard NBR seal can adapt to emulsion in the short term; Long term use is recommended to confirm the corrosiveness of the medium and upgrade the sealing material if necessary.

Q4: Apart from MAHLE filter cartridges, 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 MAHLE 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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