R000021 filter element

1. Product Overview

Aite R000021 DONALDSON Replacement Filter Element is an indispensable

 part of pipeline series of conveying media – typically installed in the filter 

of the inlet end of hydraulic systems to remove metal particles and

 contamination impurities from fluid media, ensuring normal equipment 

operation and protecting critical system components. When fluid enters the 

filter, impurities are blocked by the media, and clean filtrate is discharged 

through the filter outlet. When cleaning is needed, simply remove the element

 from the filter housing, treat with industrial liquid, and reload – minimizing 

downtime and simplifying maintenance procedures.

Aite R000021 DONALDSON Replacement Filter Element is engineered as a fully 

interchangeable substitute for original DONALDSON models – maintaining 

identical dimensional parameters, thread interfaces, sealing groove sizes, 

and installation specifications to enable direct drop-in installation without

 any housing modifications or adapter kits. This plug-and-play compatibility 

ensures seamless integration with existing DONALDSON filter housings across

 a wide range of industrial applications.

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)

Working Temperature -30°C ~ +110°C

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

Filtration Accuracy 1, 3, 6, 12, 25μm and other grades (selectable)

Filtration Ratio βx ≥ 100

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 – removing 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 characteristics:

3.1 Multiple Media Options for Versatile Applications

Aite R000021 DONALDSON Replacement Filter Element is available in four 

media types – glass fiber filter paper (BN) for high-precision fine particle

 interception, stainless steel woven mesh (W) for high-strength coarse filtration,

 wood pulp filter paper (P) for general industrial use, and stainless steel sintered 

mesh (V) for demanding high-temperature 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 – making it suitable for diverse industrial environments and 

demanding hydraulic applications.

3.3 Multiple Filtration Accuracy Options

Aite R000021 DONALDSON Replacement Filter Element is available in multiple

 filtration accuracy grades – 1μm, 3μm, 6μm, 12μm, 25μm and more – with Beta 

ratio βx ≥ 100 (≥99% capture efficiency). This allows you to select the

 appropriate precision grade for your system's cleanliness requirements.

3.4 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.

3.5 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.

3.6 High-Efficiency Contaminant Removal

Aite R000021 DONALDSON Replacement Filter Element effectively removes 

solid particles, metal wear debris, and colloidal substances from hydraulic

 oil – controlling system contamination levels and ensuring normal operation 

of hydraulic and lubrication systems.

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 and 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 filtration, 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 for tobacco processing and spraying equipment

Railway & Generator Locomotive and generator lubricating oil and oil filtration

Automotive & Construction Machinery Engine air filters, oil filters, fuel filters,

 hydraulic oil 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 

(βx ≥ 100)

· Structural Integrity: ISO 3724 flow fatigue testing to confirm collapse

 resistance

· 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 DONALDSON element?

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 with glass 

fiber filter paper (BN), stainless steel woven mesh (W), wood pulp filter paper (P),

 and stainless steel sintered mesh (V) – selectable based on your specific

 application requirements.

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.

Q5: 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 fluids – suitable for diverse industrial hydraulic applications.

Q6: What sealing materials are available for the Aite R000021 DONALDSON 

Replacement Filter Element?

A: Aite R000021 DONALDSON Replacement Filter Element is available with 

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.

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: 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.

Q11: 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.

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

and reused?

A: Depending on the media type, some variants (such as stainless steel mesh 

types) can be cleaned and reused. However, we recommend replacing the 

element when differential pressure reaches the rated threshold to ensure 

consistent filtration performance and system protection.

Aite R000021 DONALDSON Replacement Filter Element – multiple media and

 filtration grades, ISO-validated performance, precision-engineered

 interchangeability, 40%–60% cost savings. Contact us today for a free 

cross-reference check and competitive factory-direct quotation within 24 hours.

Product characteristics