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The NF ON 2650 D N 3 LZ 2.1 /-DB hydraulic filter replacement is designed as an aftermarket replacement solution for the filter referenced by Part No. 1328824. It is suitable for low-pressure hydraulic oil filtration and return-line filtration systems where reliable particle removal, stable flow and consistent filtration performance are required.
The NF 2650 filter size is designed for high-flow hydraulic filtration. Published NF series information specifies operating pressures up to 25 bar, while applicable NF 2650 configurations can reach flow rates of approximately 1700 L/min, depending on the filter configuration and operating conditions.
The replacement can be matched according to the original model code, filter dimensions, filtration rating, connection arrangement, seal material and monitoring configuration. Customers can provide the original product label, technical drawing, dimensions or product photos to help verify compatibility before ordering.
Because the NF 2650 family includes different filter media, filtration ratings, connections, bypass arrangements and differential pressure indicator configurations, the complete model code should be checked rather than selecting a replacement based only on the NF 2650 size.
| Product Type | Hydraulic Filter Replacement |
| Reference Model | NF ON 2650 D N 3 LZ 2.1 /-DB |
| Reference Part Number | 1328824 |
| Filter Series | NF 2650 |
| Filtration Rating | 3 μm |
| Filter Type | Low Pressure Hydraulic Filter |
| Filtration Method | Hydraulic Oil Filtration |
| Installation | Return Line / Inline |
| Nominal Pressure | Up to 25 bar* |
| Maximum Flow | Up to approx. 1700 L/min* |
| Filter Media | High-Efficiency Hydraulic Filter Media |
Hydraulic oil can gradually accumulate contamination during normal equipment operation. Particles may come from component wear, external contamination, fluid degradation or residual manufacturing debris. When contaminants remain in circulation, they can increase wear on precision hydraulic components and reduce the cleanliness of the working fluid.
A properly selected hydraulic return line filter helps remove particulate contamination from the oil before it returns to the reservoir. This creates an additional filtration stage within the hydraulic circuit and helps control the overall contaminant level.
As a filter element collects particles, the resistance to fluid flow can gradually increase. Monitoring the differential pressure across the element provides useful information about its condition. When the pressure differential reaches the recommended maintenance level, the filter element can be inspected or replaced.
There is no universal replacement interval for every hydraulic system. Actual service life depends on oil cleanliness, operating hours, contamination load, oil viscosity, flow rate and system operating conditions. A differential pressure indicator can therefore be more useful than relying only on a fixed replacement schedule.
Q1: Can I replace only the internal filter element? Yes, where the existing housing is suitable and the replacement element matches the required dimensions, filtration rating, sealing arrangement and configuration. The replacement element should be confirmed against the original filter before installation. Q2: How do I confirm that a replacement filter is compatible? Provide the complete model code, part number, product photos, dimensions, connection information and filtration rating. A clear photo of the original nameplate is particularly useful for specification verification. Q3: How often should a hydraulic filter be replaced? The replacement interval depends on contamination level, operating hours, oil condition, flow rate and system conditions. Monitoring differential pressure can help determine when the element requires maintenance. Q4: Can the replacement filter be customized? Yes. Replacement specifications can be reviewed according to the original dimensions, filtration rating, filter media, seals and connection requirements. Non-standard requirements can also be evaluated according to drawings or samples. Q5: Is NF 2650 the same for every configuration? No. The NF 2650 designation identifies the filter size, but different configurations may use different filter media, filtration ratings, connections, indicators and bypass arrangements. The complete model code should therefore be used for accurate replacement selection.
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Henan Top Environmental Protection Equipment is a manufacturing company located in Henan, China, focusing on a wide range of filter cartridges and filter housings. Our facility is equipped with advanced production equipment, including rolling, slitting, and welding machines, as well as several automated lines that allow us to deliver consistent, high-quality products in large volumes.
Our R&D team consists of experienced engineers who provide solid technical support, complemented by a knowledgeable sales and after-sales staff dedicated to reliable service. Every product is produced under strict quality control procedures to ensure it meets demanding performance standards.
We specialize in customized filtration solutions. According to customer needs, we can select suitable raw materials for various working conditions and offer custom dimensions, colors, packaging, labels, logos, and graphics. With strong manufacturing capability, we are often able to complete new product development and production within a week.
The company has earned CE and ISO certifications and holds several R&D patents. With more than 15 years of export experience, our products are shipped to over 100 countries and regions, including North America, Eastern Europe, the Middle East, and Southeast Asia. Guided by principles of responsibility, professionalism, and integrity, we have built long-term trust and recognition throughout the industry by consistently delivering dependable products and service.
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