Aite R000021 DONALDSON Replacement Filter Element

1. Product Overview

Aite R000021 DONALDSON Replacement Filter Element is an indispensable component in pipeline series of conveying

 media – typically installed in the inlet filter of hydraulic systems to remove metal particles and contamination impurities

 from fluid media, ensuring normal equipment operation and protecting critical system components. This replacement 

element is engineered as a fully interchangeable substitute for original DONALDSON R000021 models, delivering reliable 

filtration performance, extended service life, and consistent contaminant control across a wide range of industrial applications.

Aite R000021 DONALDSON Replacement Filter Element features a user-friendly design that simplifies maintenance – when

 the fluid enters the filter, impurities are trapped by the media, and clean filtrate is discharged through the filter outlet. 

When cleaning or replacement is needed, simply remove the element from the filter housing and reload after treatment 

with industrial fluid or replace with a new element – minimizing downtime and simplifying maintenance procedures.

As a professional manufacturer specializing in import substitution filter consumables (not an authorized DONALDSON distributor), 

we deliver Aite R000021 DONALDSON Replacement Filter Element with stable filtration performance, significantly shorter 

delivery cycles, and substantially lower procurement costs for industrial facilities worldwide.

2. Technical Specifications

Parameter Specification

Working Medium Phosphate hydraulic oil, emulsion, water-glycol

Filter Media Options Glass fiber filter paper (BN), stainless steel woven mesh (W), wood pulp filter paper (P), stainless steel 

sintered mesh (V)

Working Pressure 21 bar ~ 210 bar (2.1 – 21 MPa)

Operating Temperature -30°C ~ +110°C

Sealing Material FKM (fluororubber) / NBR (nitrile butyl rubber) – optional

Filtration Accuracy 1 ~ 25μm (selectable)

Structural Strength Ratings 1.0 MPa, 2.0 MPa, 16.0 MPa, 21.0 MPa (optional)

Initial Pressure Drop ≤0.03 MPa (at rated flow)

Replacement Differential Pressure 0.15 MPa (alarm) / 0.20 MPa (mandatory)

Aite R000021 DONALDSON Replacement Filter Element is suitable for pressure oil filtration in hydraulic and lubrication 

systems – filtering pollutants to ensure normal system operation and protect critical components from premature wear.

3. Product Characteristics & Performance Advantages

Aite R000021 DONALDSON Replacement Filter Element delivers superior performance through the following key features:

3.1 Multiple Media Options for Versatile Applications

Aite R000021 DONALDSON Replacement Filter Element is available in four media types to match your specific application

 requirements:

· Glass fiber filter paper (BN) : High-precision fine particle interception, ideal for high-cleanliness hydraulic systems

· Stainless steel woven mesh (W) : High strength, washable and reusable, suitable for coarse filtration applications

· Wood pulp filter paper (P) : Economical, suitable for general industrial filtration

· Stainless steel sintered mesh (V) : Excellent strength, high temperature resistance, suitable for demanding operating 

conditions

3.2 Wide Operating Range

Aite R000021 DONALDSON Replacement Filter Element operates across a broad temperature range of -30°C to +110°C and

 working pressures from 21 bar to 210 bar – with structural strength ratings available up to 21.0 MPa – making it suitable for 

diverse industrial environments and demanding hydraulic applications.

3.3 Multiple Structural Strength Grades

Aite R000021 DONALDSON Replacement Filter Element is available in four structural strength ratings – 1.0 MPa, 2.0 MPa, 16.0 MPa, 

and 21.0 MPa – allowing selection based on your system's maximum operating pressure and safety requirements.

3.4 Reliable Sealing System

Aite R000021 DONALDSON Replacement Filter Element is equipped with high-performance sealing options – FKM (fluororubber)

 for high-temperature and chemical resistance, or NBR (nitrile butyl rubber) for standard applications – ensuring leak-proof 

sealing and preventing bypass leakage across the full operating temperature range.

3.5 Simple Maintenance Design

Aite R000021 DONALDSON Replacement Filter Element features a design that simplifies maintenance – when cleaning is required,

 simply remove the element from the filter housing, treat with industrial fluid, and reload. This user-friendly design minimizes

 downtime and reduces labor costs during routine servicing.

Aite R000021 DONALDSON Replacement Filter Element offers equivalent performance to genuine DONALDSON parts at 40%–60% 

lower cost – making it an ideal choice for cost-conscious maintenance programs without compromising system protection.

4. Application Fields

Aite R000021 DONALDSON Replacement Filter Element is widely used across diverse industrial sectors:

Industry Typical Applications

Metallurgy Rolling mills, continuous casting machines, various lubrication equipment filtration

Petrochemical Product separation and recovery in oil refining/chemical production, liquid purification, tape/CD/photographic

 film manufacturing purification, oilfield well water and natural gas particle removal

Textile Purification and uniform filtration of polyester melt in drawing processes, air compressor protection, compressed gas 

oil/water removal

Electronics & Pharmaceutical Reverse osmosis water and deionized water treatment filtration, washing liquid and glucose

 pre-treatment filtration

Thermal & Nuclear Power Gas turbine and boiler lubrication systems, speed control systems, bypass control oil purification, 

feedwater pump and fan system purification

Mechanical Processing Paper machinery, mining equipment, injection molding machines, large precision machinery lubrication 

and compressed air purification, dust recovery and filtration for tobacco processing and spraying equipment

Railway & Generator Locomotive and generator lubricating oil filtration

Automotive & Construction Machinery Engine air filters, oil filters, fuel filters, hydraulic oil filters, diesel filters, and water filters

 for construction equipment, ships, and trucks

Aite R000021 DONALDSON Replacement Filter Element is compatible with phosphate hydraulic oils, emulsions, water-glycol

 mixtures, and various synthetic fluids – providing versatile filtration solutions across multiple industries and applications.

5. Quality Assurance & Supply Capabilities

Aite R000021 DONALDSON Replacement Filter Element is manufactured under strict quality control standards in our own

 production facilities. Each element undergoes comprehensive testing to verify:

· Dimensional Accuracy: Full interchangeability with original DONALDSON R000021 specifications

· Filtration Performance: ISO 16889 multipass testing to validate Beta ratio and efficiency

· Structural Integrity: ISO 3724 flow fatigue testing to confirm collapse resistance at rated pressure

· Sealing Integrity: Pressure testing to verify leak-proof installation

· Material Quality: EN 10204 material certificates for full traceability

Supply Capabilities:

· Small trial orders: 3–7 days delivery

· Bulk orders: 15 working days delivery

· EXW, FOB, and CIF trade terms available

· Full export documentation for smooth customs clearance worldwide

6. Frequently Asked Questions (FAQ)

Q1: Is the Aite R000021 DONALDSON Replacement Filter Element fully interchangeable with the original?

A: Yes. Aite R000021 DONALDSON Replacement Filter Element is precision-engineered to match original dimensions, thread

 interfaces, sealing groove sizes, and installation parameters – enabling direct drop-in installation without any housing 

modifications or adapter kits.

Q2: What filter media options are available for the Aite R000021 DONALDSON Replacement Filter Element?

A: Aite R000021 DONALDSON Replacement Filter Element is available in four media types – glass fiber (BN) for high-precision 

applications, stainless steel woven mesh (W) for high-strength coarse filtration, wood pulp paper (P) for general industrial use,

 and stainless steel sintered mesh (V) for demanding high-temperature conditions.

Q3: What is the filtration accuracy range for the Aite R000021 DONALDSON Replacement Filter Element?

A: Aite R000021 DONALDSON Replacement Filter Element offers filtration accuracy from 1μm to 25μm, allowing you to select 

the appropriate precision grade for your system's cleanliness requirements and component sensitivity.

Q4: What is the working pressure range for the Aite R000021 DONALDSON Replacement Filter Element?

A: Aite R000021 DONALDSON Replacement Filter Element is rated for working pressures from 21 bar to 210 bar (2.1–21 MPa) – with

 structural strength ratings available at 1.0 MPa, 2.0 MPa, 16.0 MPa, and 21.0 MPa to match your system requirements.

Q5: What sealing materials are available for the Aite R000021 DONALDSON Replacement Filter Element?

A: Aite R000021 DONALDSON Replacement Filter Element is available with either FKM (fluororubber) seals for high-temperature

 and chemical resistance, or NBR (nitrile butyl rubber) seals for standard applications – ensuring leak-free sealing across the full

 operating temperature range of -30°C to +110°C.

Q6: What fluid types are compatible with the Aite R000021 DONALDSON Replacement Filter Element?

A: Aite R000021 DONALDSON Replacement Filter Element is compatible with phosphate hydraulic oils, emulsions, water-glycol 

mixtures, and various synthetic hydraulic fluids – suitable for diverse industrial hydraulic applications.

Q7: How does the Aite R000021 DONALDSON Replacement Filter Element compare to genuine DONALDSON parts in terms of

 quality and cost?

A: Aite R000021 DONALDSON Replacement Filter Element delivers equivalent filtration performance and service life to genuine 

DONALDSON parts – validated by ISO 16889 and ISO 3724 testing – while offering 40%–60% cost savings, significantly reducing 

annual maintenance budgets.

Q8: What is the recommended replacement interval for the Aite R000021 DONALDSON Replacement Filter Element?

A: Replacement interval depends on operating conditions and system contamination levels. We recommend monitoring 

differential pressure across Aite R000021 DONALDSON Replacement Filter Element – replace when ΔP reaches 0.15 MPa (alarm) or

 0.20 MPa (mandatory) – or as part of your scheduled preventive maintenance program.

Q9: What industries is the Aite R000021 DONALDSON Replacement Filter Element most suitable for?

A: Aite R000021 DONALDSON Replacement Filter Element is widely used in metallurgy, petrochemical, textile, electronics, 

pharmaceutical, power generation, mechanical processing, railway, automotive, and construction machinery 

industries – covering virtually all hydraulic and lubrication filtration applications.

Q10: Can I order samples of the Aite R000021 DONALDSON Replacement Filter Element before bulk purchase?

A: Yes. We support paid sample orders (1–5 pieces) with production lead time of approximately 5–7 days. Sample costs are fully 

deductible from your first bulk order upon approval.

Q11: What documentation is provided with the Aite R000021 DONALDSON Replacement Filter Element?

A: Each shipment includes EN 10204 material certificates, ISO 16889 filtration performance test reports, dimensional inspection 

records, and factory quality certificates – ensuring smooth customs clearance in the EU, Southeast Asia, the Middle East, 

and beyond.

Q12: Can the Aite R000021 DONALDSON Replacement Filter Element be cleaned and reused?

A: Depending on the media type, some variants of Aite R000021 DONALDSON Replacement Filter Element (such as stainless

 steel mesh types) can be cleaned and reused. However, we recommend replacing the element when the differential pressure

 reaches the rated threshold to ensure consistent filtration performance and system protection.

Aite R000021 DONALDSON Replacement Filter Element – precision-engineered interchangeability, multiple media and strength 

options, proven filtration performance at competitive factory-direct pricing. Contact us today for a free cross-reference check

 and quotation within 24 hours.

Product characteristics