Pall HH8300 – High-Flow, Precision Industrial Filtration

1. Product Overview

The Pall HH8300 Series are low-pressure, high-flow industrial filters featuring coreless

 element technology. Housings are constructed from anodized aluminum, 

offering lightweight durability and corrosion resistance. These filters are designed for hydraulic,

 lubrication, and industrial oil purification applications, efficiently removing solid particles

 and colloidal contaminants to protect system components and support continuous, 

reliable operation.

2. Product Performance

Feature Description

High-Flow Design Single unit flow up to 1135 L/min; dual manifold up to 2270 L/min – meeting 

large system circulation demands

High Filtration Efficiency Equipped with Ultipor III elements (β ≥ 1000), accurately capturing 

particles from 1 – 100 μm

Large Dirt-Holding Capacity Coreless structure increases contaminant retention, enhances

 clogging resistance, extends element life, and reduces maintenance costs

Fast Bypass Response Built-in full-flow bypass valve opens quickly at excessive differential

 pressure, ensuring continuous system operation even during element saturation

3. Technical Specifications

Parameter Specification

Maximum Working Pressure 28 bar (400 psi)

Fatigue Pressure 23 bar

Burst Pressure 145 bar

Operating Temperature -43°C ~ +107°C (nitrile seals)

High-Temp Option FKM seals available for high-temperature / oil-resistant conditions

Port Sizes (Single) 1.5″, 2″, 2.5″

Port Size (Dual) 3″

Housing Material Anodized aluminum – lightweight and corrosion-resistant

Cover Type T-handle quick-remove cover

Standard Features Vent/drain ports, O-ring seals

Optional Features Differential pressure indicators

4. Scope of Application

Industry Typical Application

Metallurgy Hydraulic stations, rolling mill systems

Petrochemical Oil purification, circulation systems

Electric Power Turbine lubrication, oil conditioning

Wind Energy Gearbox oil filtration (wind turbine gearboxes)

Construction Machinery Heavy equipment hydraulic systems

General Industry Lubrication systems, gear oil circulation, industrial oil purification

Suitable Fluids: Hydraulic oil, lubricants, gear oils, and industrial circulating oils.

FAQ (Frequently Asked Questions)

Q1: What is the maximum flow rate of the HH8300 series?

A: A single unit can handle flow rates up to 1135 L/min, and when configured with a dual manifold, 

the flow capacity reaches up to 2270 L/min — meeting the demands of large industrial circulation systems.

Q2: What filtration efficiency does this series offer?

A: The HH8300 series is equipped with Ultipor III filter elements, achieving a filtration ratio of β ≥ 1000. 

This accurately captures particles ranging from 1 to 100 μm, ensuring superior contamination control.

Q3: What is the maximum working pressure of the HH8300 series?

A: The maximum working pressure is 28 bar (400 psi), with a fatigue pressure rating of 23 bar and burst 

pressure of 145 bar, ensuring robust performance under demanding operating conditions.

Q4: What is coreless element technology, and what are its benefits?

A: The coreless element design eliminates the internal support core found in traditional elements, 

allowing for greater contaminant retention volume. This results in:

· Higher dirt-holding capacity

· Enhanced clogging resistance

· Extended element service life

· Reduced maintenance costs

Q5: What materials are used for the filter housing?

A: The housings are constructed from anodized aluminum, offering lightweight durability and excellent

 corrosion resistance — ideal for industrial environments where weight and protection are important factors.

Q6: What is the operating temperature range of this filter?

A: With standard nitrile seals, the operating temperature range is -43°C to +107°C. For high-temperature

 or oil-resistant applications, FKM (fluorocarbon) seals are available as an optional upgrade.

Q7: What port sizes are available for the HH8300 series?

A: For single units, port sizes of 1.5″, 2″, and 2.5″ are available. For dual manifold configurations, 

a 3″ port size is offered, providing flexibility for different system piping requirements.

Q8: How does the bypass valve protect the system?

A: The built-in full-flow bypass valve opens quickly when the differential pressure becomes excessive

 (element saturation). This ensures continuous system operation by allowing oil to bypass the clogged element, 

preventing system starvation or pump damage while maintaining system function.

Q9: How easy is it to replace the filter elements?

A: The filter features a T-handle quick-remove cover, enabling fast and tool-friendly access to the element 

chamber. This simplifies routine maintenance and minimizes downtime during element change-outs.

Q10: What fluids are compatible with the HH8300 series?

A: The filters are compatible with a wide range of industrial fluids, including hydraulic oil, lubricants,

 gear oils, and industrial circulating oils, making them versatile for various applications.

Q11: What industries and applications are best suited for the HH8300 series?

A: The HH8300 series is widely used across multiple industries:

· Metallurgy – hydraulic stations, rolling mill systems

· Petrochemical – oil purification, circulation systems

· Electric Power – turbine lubrication, oil conditioning

· Wind Energy – gearbox oil filtration for wind turbines

· Construction Machinery – heavy equipment hydraulic systems

· General Industry – lubrication systems, gear oil circulation, industrial oil purification

Q12: Are differential pressure indicators available?

A: Yes. Differential pressure indicators are available as an optional feature, providing real-time monitoring

 of element condition and alerting maintenance personnel when element replacement is needed.

Q13: What standard features are included with the HH8300 series?

A: Standard features include vent/drain ports for easy servicing, O-ring seals for reliable leak-free operation,

 and a T-handle quick-remove cover for fast maintenance access.

Q14: What high-temperature options are available?

A: For applications operating at elevated temperatures or requiring enhanced oil resistance, 

FKM (fluorocarbon) seals are available as an optional upgrade to replace the standard nitrile seals.

Q15: What is the overall value proposition of the HH8300 series?

A: The Pall HH8300 series delivers:

· High-flow capacity — up to 1135 L/min (single) or 2270 L/min (dual manifold)

· High-efficiency particle removal — β ≥ 1000, capturing particles from 1 to 100 μm

· Extended service life — coreless elements with maximum dirt-holding capacity

· Continuous system protection — fast bypass response prevents system shutdown

· Durable lightweight construction — anodized aluminum housing with corrosion resistance

· Flexible configuration — multiple port sizes, seal options, and indicator choices

· Broad applicability — suitable for hydraulic, lubrication, and gear oil systems across multiple industries

· Cost-effective operation — reduced maintenance frequency and longer element life

Q16: Can this filter be used for wind energy applications?

A: Yes. The HH8300 series is specifically recommended for wind energy gearbox oil filtration,

 where reliable removal of particulate contaminants is critical for protecting expensive gearbox 

components and extending maintenance intervals in remote wind turbine installations.

5. Summary

The Pall HH8300 Series delivers high-flow capacity, high-efficiency particle removal (β ≥ 1000), 

and coreless element design for maximum dirt-holding capacity and extended service life. 

With robust construction, fast bypass protection, and flexible seal/material options,

 it provides reliable oil purification across demanding industrial environments.

Contact Us

For detailed datasheets, cross-reference verification, and tailored quotations,

 please contact our technical team.

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