INTERNORMEN 01. NR1000.25VG.10. B.P Replacement Filter Element Large Flow Bypass Lubrication Filter Cartridge 25 μm Offline Circulating Oil Purification

Core basic parameters of the product

01. NR1000.25VG.10. B.P replacement filter element is produced according to DIN24550 industrial filter standard, and the finished product undergoes multi pass performance sampling. The core technical parameters are as follows:

-Product model: 01.NR1000.25VG.10.B.P (domestic substitute)

-Filtration accuracy: 25 μ m, β (c) ≥ 100, nominal filtration grade

-Adaptive filter: INTERNORMEN 01.NR1000 offline bypass filter

-Model code definition: NR=offline bypass circulation filter element; VG=fiberglass filter material; 10=maximum collapse pressure difference of 10 bar; B=Special end cap structure; P=NBR nitrile rubber seal

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

-Maximum collapse pressure difference: 10 bar, suitable for low-pressure conditions in bypass circulation

-Working temperature range: -20 ℃ to+100 ℃

-Suggest replacing the pressure difference: 0.18MPa. If the pressure difference reaches the threshold, replace the filter element in a timely manner

-Oil flow direction: from outside to inside, matching the standard flow direction of NR offline filter

-Structural form: Multi layer gradient fiberglass folding filter element, reinforced metal support skeleton inside and outside

Detailed introduction of product materials

01. NR1000.25VG.10. B.P is an offline bypass high flow filter element that operates continuously 24 hours a day. The filter material is continuously subjected to oil flow erosion, with a focus on enhancing its pollutant holding capacity and fatigue resistance to avoid faults such as skeleton flattening, filter material fatigue damage, and end cap detachment.

-Filter material: Multi layer gradient resin cured VG fiberglass filter material, with a large folding filtration area, suitable for offline high flow continuous circulation conditions. The outer layer intercepts large abrasive particles and sludge, while the inner layer completes the interception of 25 μ m particles; The filter material is impregnated and solidified at high temperature, and the fibers are firmly bonded. It is not easy for the fibers to fall off after long-term continuous oil flow, which prevents secondary pollution of the oil tank oil; Gradient layered pollutant collection, impurities are intercepted layer by layer, significantly increasing the total pollutant collection capacity, suitable for 24-hour uninterrupted bypass purification conditions.

-Internal and external support skeleton: thickened punched galvanized carbon steel skeleton, reinforced in both directions to resist negative pressure and flow impact caused by the start and stop of the bypass pump, and prevent the filter element from collapsing due to suction; High porosity of the skeleton reduces overall flow resistance without increasing the operating load of the bypass pump.

-Sealing parts: standard NBR nitrile rubber sealing ring, oil resistant and anti-aging, long-term immersion in lubricating oil is not easy to swell, to ensure that the filter element and filter seat are sealed tightly, to prevent oil bypass short circuit; High temperature conditions support upgrading FKM fluororubber seals.

-End cap and bonding process: Special B-type metal end cap, high-strength hot pressing bonding process, firmly combined with filter material, skeleton, and end cap; After long-term cyclic fatigue testing, the adhesive will not peel or crack under continuous operating conditions; 1: 1. Reproduce the installation dimensions of the original factory B-type end cover, and ensure smooth disassembly and exchange.

Main applicable scenarios and industries

01. NR1000.25VG.10. B.P positioning offline bypass circulation filtration, used for oil tank bypass oil purification device, not directly used as main oil circuit pressure filter element or return oil filter element.

-Wind power industry: Wind turbine gearbox bypass circulation filtration continuously purifies gearbox lubricating oil, reduces gear bearing wear, and extends oil service life.

-Power industry: Offline oil purification for power plant steam turbines and auxiliary large lubricating oil stations.

-Heavy industrial equipment: large industrial gearboxes, bypass filtration transformation of large circulating oil stations.

-Oil purification equipment: equipped with INTERNORMEN NR series filters for oil filtration devices and bypass filtration units.

-Equipment maintenance support: maintenance of imported large-scale lubrication equipment, replacement of spare parts, and localization renovation projects.

Core advantages of the product

1. Offline bypass special high flow design, suitable for 24-hour continuous operation: with a large folding area of the filter material, low initial pressure difference, suitable for uninterrupted circulation of the bypass pump, it will not bring additional load to the bypass system.

2. Ultra high pollutant holding capacity, extended replacement cycle: gradient multi-layer pollutant holding structure, accommodating a large number of gear wear particles and oil sludge colloids, suitable for long-term continuous purification, reducing on-site maintenance frequency.

3. Resistant to oil flow fatigue impact, suitable for uninterrupted working conditions: Strengthen the skeleton and fatigue grade fiberglass filter material, withstand repeated flow impact during pump start stop, and reduce the risk of filter element failure during long-term operation.

4. Continuous purification of the bypass to improve the cleanliness of the entire tank oil: without cutting off the filtered flow from the main oil circuit, independent circulation slowly reduces the overall pollution of the oil tank, protects gears and bearings, extends the service life of lubricating oil, and reduces oil change costs.

Core advantages of source factory substitution

Our factory has mature production experience in the entire series of INTERNORMEN 01.NR offline bypass filter cartridges. We conduct special fatigue tests on NR-1000 high flow offline filter cartridges, sample each batch for pressure resistance, sealing, and filtration efficiency verification, control the risk of fiber detachment, and ensure 24-hour continuous working reliability. Direct supply from the source manufacturer, cutting off the premium of imported brand intermediaries, supporting single sample machine testing, undertaking annual factory maintenance, and large-scale bidding and procurement for engineering projects. The sealing material can be upgraded according to the temperature of the on-site medium.

Frequently Asked Questions (FAQ)

Q1: Can the NR offline bypass filter be used as a main return oil filter or pressure filter?

A: Not recommended. The filter element is designed for bypass low-pressure circulation, with a collapse pressure difference of only 10 bar and insufficient pressure resistance; The main oil circuit should use the 01. E series corresponding filter element.

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

A: Abnormal wear of gears and bearings can produce a large amount of metal particles, or lubricating oil can oxidize and form sludge; Suggest synchronously testing the oil, checking for equipment wear, and replacing the filter element promptly when the pressure difference reaches 0.18MPa.

Q3: Can B-type end caps and regular E-type end cap filter cartridges be installed together?

A: No, B represents a special end cap structure for bypass, with different installation positioning dimensions. The B end cap model must be used, and ordinary E end cap filter cartridges cannot be mixed.

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

A: Our factory has a complete product line for oil filtration. In addition to INTERNORMEN 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.

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