H3031BC10 Filter Element – Reliable Hydraulic Filtration for Industrial Systems

1. Product Overview

The H3031BC10 filter element is a critical component installed in hydraulic system oil circuits, designed to remove 

metal wear particles, mechanical impurities, and other contaminants generated during system operation. By maintaining 

oil cleanliness, it effectively extends the service life of hydraulic components—including pumps, valves, actuators,

 and bearings—while ensuring consistent system performance.

This low-pressure series filter element is additionally equipped with a built-in bypass valve. When the element becomes

 clogged and replacement is not immediately possible, the bypass valve automatically opens to allow oil flow to continue, 

preventing system starvation and ensuring uninterrupted equipment operation. This safety feature provides an essential

 layer of protection for critical production processes where unplanned shutdowns are costly.

Engineered for direct interchangeability with original specifications, the H3031BC10 features precisely matched dimensions, 

sealing interfaces, and thread types—enabling drop-in installation without housing modifications.

Please note: Aite is an independent manufacturer and not an authorized distributor of the original brand. Our replacement

 elements are engineered to meet or exceed original performance specifications at a competitive price point.

2. Technical Specifications

Parameter Specification

Model Number H3031BC10

Filtration Precision 1 ~ 100 μm (multiple ratings available)

Maximum Working Pressure 21 MPa (210 bar)

Working Medium General hydraulic oil, phosphate ester fluid, emulsion, water-glycol

Operating Temperature Range –30°C ~ +110°C

Filter Media Options – BN: Glass fiber filter paper – W: Stainless steel woven mesh – P: Wood pulp filter paper – V: Stainless steel

 sintered mesh

Seal Material Options Z: FKM (fluororubber) / D: NBR (butyl rubber)

Bypass Valve Integrated (standard on low-pressure series)

Beta Ratio βₓ ≥ 200 (ISO 16889)

Flow Direction Outside-in

All geometric dimensions—outer diameter, inner bore, height, and thread—are verified with CMM inspection to ensure 100% 

interchangeability with original housings.

3. Key Features and Advantages

Feature Benefit

Integrated bypass valve Automatically opens when element is clogged, preventing system starvation and allowing uninterrupted

 operation until replacement can be scheduled.

Multiple media options Choose from glass fiber (BN), stainless steel woven mesh (W), wood pulp (P), or sintered mesh

 (V)—tailored to your specific fluid and application requirements.

Flexible seal selection FKM (Z) for high-temperature and phosphate ester fluids; NBR (D) for standard mineral oil applications.

Broad filtration range Available in 1–100 μm precision ratings to match system cleanliness requirements—from servo-valve 

protection to general lube circuits.

High structural strength Rated for maximum working pressure of 21 MPa, ensuring reliable performance under demanding

 industrial conditions.

Wide temperature tolerance Stable performance from –30°C to +110°C for both cold-start and high-temperature environments.

Broad fluid compatibility Suitable for general hydraulic oil, phosphate esters, emulsions, and water-glycol fluids.

Cost-effective alternative 40–60% savings over genuine parts, with equivalent or superior performance validated by ISO 16889

 testing.

Complete documentation EN 10204 Type 2.1 material certificates and performance test reports included with every shipment.

4. Media & Seal Selection Guide

4.1 Media Selection

Media Code Material Recommended Applications

BN Glass fiber paper High-efficiency particle removal, general hydraulic systems, extended service life

W Stainless steel woven mesh Washable/reusable, coarse filtration, high-flow applications

P Wood pulp paper Standard industrial filtration, cost-effective disposable option

V Stainless steel sintered mesh High-pressure systems, extreme temperatures, aggressive fluids, cleanable

4.2 Seal Selection

Seal Code Material Suitable Fluids Temperature Range

D NBR (butyl rubber) Mineral hydraulic oils, water-glycol emulsions –30°C ~ +100°C

Z FKM (fluororubber) Phosphate esters, high-temperature oils, aggressive chemicals –20°C ~ +150°C

Select the appropriate media and seal combination based on your system's fluid type, operating temperature, and pressure

 requirements.

5. Application Fields

The H3031BC10 filter element is widely used across multiple industries due to its versatility and reliable filtration performance:

Industry Specific Applications

Metallurgy Rolling mill hydraulic systems; continuous casting machine hydraulic stations; lubrication equipment filtration

Petrochemical Product separation and recovery in refining/chemical production; liquid purification; oilfield water and natural 

gas particle removal

Textile Polyester melt purification during drawing; air compressor protection; compressed gas oil/water removal

Electronics & Pharmaceutical Reverse osmosis and deionized water filtration; washing liquid and glucose pretreatment filtration

Heavy Machinery Construction equipment, mining machinery, injection molding machines, and press lines

Power Generation Turbine lubrication, speed control systems, bypass control oil purification

6. Selection & Operation Guidelines

6.1 Bypass Valve Function

The integrated bypass valve is a critical safety feature:

· Normal operation: Oil flows through the filter media; contaminants are captured.

· Clogged condition: When differential pressure exceeds the preset limit, the bypass valve opens, allowing oil to bypass the

 element and maintain system flow.

· Warning: Bypass operation means unfiltered oil is circulating—replace the element as soon as possible to restore full filtration 

protection.

6.2 Replacement Indication

Monitor the differential pressure gauge. Replace when DP reaches the alarm value—typically 0.35–0.5 MPa above initial clean 

pressure drop. Do not rely solely on the bypass valve; replace promptly to maintain system cleanliness.

6.3 Storage Conditions

Store unused elements in original packaging in a cool, dry, dust-free environment. Avoid direct sunlight, extreme temperatures, 

and corrosive chemicals. Recommended storage: <40°C and <80% relative humidity.

6.4 Disposal

Used elements may contain hazardous contaminants. Follow local environmental regulations—drain oil and dispose as 

industrial hazardous waste or through authorized recycling channels.

Frequently Asked Questions (FAQ)

Q1: What is the purpose of the integrated bypass valve on the H3031BC10?

A: The bypass valve automatically opens when the element becomes clogged and differential pressure exceeds the preset limit. 

This prevents system starvation and ensures uninterrupted equipment operation until replacement can be scheduled. However, 

bypass operation allows unfiltered oil to circulate—replace the element promptly to restore full filtration protection.

Q2: What is the recommended replacement interval for the H3031BC10?

A: The interval depends on operating conditions and contamination levels. Monitor the differential pressure gauge—replace 

when DP reaches 0.35–0.5 MPa above initial clean pressure drop. Under typical industrial conditions, replacement every 6–12 

months or after 3,000–5,000 operating hours is common. Do not wait for the bypass valve to open before replacing.

Q3: Can this filter element be cleaned and reused?

A: Depending on the media type—stainless steel woven mesh (W) and sintered mesh (V) elements are cleanable and reusable. 

Glass fiber (BN) and wood pulp (P) elements are disposable and should be replaced rather than cleaned. For cleanable elements, 

use approved industrial cleaning fluids and follow recommended procedures.

Q4: Which filter media should I choose for my application?

A: Choose based on your system requirements:

· BN (glass fiber) : High-efficiency particle removal in general hydraulic systems.

· W (stainless steel mesh) : Washable/reusable applications with coarse filtration needs.

· P (wood pulp) : Cost-effective disposable filtration in standard industrial systems.

· V (sintered mesh) : High-pressure, high-temperature, or aggressive fluid applications requiring maximum durability.

Q5: How do I confirm compatibility with my existing filter housing?

A: Check the model number on your existing element and compare dimensions (outer diameter, inner diameter, length), seal type, 

and bypass valve setting. Our H3031BC10 follows original specifications for 1:1 interchangeability—no housing modifications 

required. Our technical team can assist with cross-referencing.

Q6: What is the difference between your H3031BC10 and the original brand element?

A: Our element is manufactured using equivalent high-quality media and premium sealing materials, meeting or exceeding

 original performance specifications—validated by ISO 16889 multi-pass testing. It offers reliable filtration performance at 

40–60% cost savings with faster delivery times.

Q7: What does the filtration precision "1–100 μm" range mean?

A: The H3031BC10 series is available in multiple absolute ratings from 1 micron to 100 microns. A 10-micron rating means particles 

larger than 10 microns are captured with high efficiency (β₁₀ ≥ 200). Select based on your system's cleanliness 

requirements—finer (1–5 μm) for servo-valve protection, coarser (20–100 μm) for general lube circuits.

Q8: What is the difference between FKM (Z) and NBR (D) seals?

A: NBR (D) is suitable for mineral hydraulic oils at –30°C to +100°C. FKM (Z) is required for phosphate ester fluids, high-temperature

 applications (>100°C), or aggressive chemical environments. Please specify your working medium when ordering to ensure 

correct seal selection.

Q9: Can this filter element handle phosphate ester hydraulic fluids?

A: Yes. For phosphate ester fluids, select the FKM (Z) seal option. The media options (BN, W, P, V) are all compatible with 

phosphate esters, provided the correct seal material is used. Please specify your working medium when ordering.

Q10: What happens if the bypass valve opens frequently?

A: Frequent bypass opening indicates the element is chronically clogged or undersized for the contamination load. This allows 

unfiltered oil to circulate, accelerating component wear. Check your replacement schedule—you may need more frequent 

changes or a larger element. Consult our technical team for sizing recommendations.

Q11: Can I use this element in a suction line application?

A: This element is generally designed for pressure line or return line applications. For suction line applications, a different filter 

design with lower pressure drop is required. Please consult our engineering team for specific recommendations.

Q12: Can you supply test certificates for export and customs clearance?

A: Yes. Every shipment includes EN 10204 Type 2.1 material certificates, ISO 16889 multi-pass filtration performance test reports,

 and factory inspection documents. Upon request, we can provide Type 3.1 third-party inspection or surveyor reports

 (additional cost applies), meeting EU, ASEAN, Middle Eastern, and South American import requirements.

Q13: Do you keep the H3031BC10 in stock?

A: Yes. This is one of our popular models and is always well-stocked. Trial orders (1–10 pcs) ship within 3–7 working days; 

bulk orders (500+ pcs) within 15 working days. Expedited airfreight is available for urgent breakdowns.

Q14: Do you offer elements with different micron ratings or seal materials?

A: Yes. The H3031BC10 series is available in 1–100 μm absolute ratings, with NBR (D) or FKM (Z) seals. We also offer custom media 

combinations and branded labeling for OEM/distributor orders. Please specify your requirements when ordering.

Q15: Do you provide technical support for installation or troubleshooting?

A: Yes. Our in-house engineers have 15+ years of hydraulic filtration experience. We provide free dimensional drawings, installation 

guides, and remote video troubleshooting. For large projects, on-site commissioning support can be arranged (subject to travel 

conditions).

Conclusion

The H3031BC10 filter element is a reliable, versatile filtration solution that effectively removes metal wear particles and 

mechanical impurities from hydraulic systems. With its integrated bypass valve, multiple media options (glass fiber, stainless steel 

woven mesh, wood pulp, and sintered mesh), flexible seal selection (FKM/NBR), broad filtration range (1–100 μm), and wide

 temperature tolerance, it is an excellent choice for metallurgy, petrochemicals, textiles, electronics, pharmaceuticals, and many 

other industries. Backed by fast delivery, complete documentation, and competitive pricing, this replacement element offers

 outstanding value for maintaining system cleanliness and operational reliability.

For cross-reference charts, technical datasheets, or a customized quotation, please contact our sales engineering team today.

 We keep your hydraulic systems running—reliably, safely, and cost-effectively.

Product characteristics