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PALL INDUSTRIAL HH8670F20KNUB Duplex Hydraulic Pressure Filter

Hh8670f20knub Pall Industrial Duplex Hydraulic Pressure Filter Assembly

( Brand: Pall Industrial ), ( Manufacturer Part Number: HH8670F20KNUB ), ( Part Type: Hydraulic Pressure Filter ), ( Input Output Diameter: 1 1/4 In ), ( Micron Rating: 7 Micron ), ( Maximum Flow Rating: 50 Gpm )

Review PALL INDUSTRIAL Duplex Hydraulic Pressure Filter Assembly

The **Pall HH8670F20KNUB Duplex Hydraulic Pressure Filter** is a high-performance, dual-element filtration system meticulously engineered to ensure peak efficiency and reliability in demanding hydraulic applications. Designed with a robust stainless steel housing, this filter combines durability with precision engineering to handle the rigorous demands of industrial fluid systems, including hydraulic oils, lubricants, and other pressurized fluids. The duplex configuration allows for seamless switching between two filter elements one active and one standby eliminating downtime during maintenance or element replacement. This feature is particularly advantageous in continuous-operation environments where unplanned interruptions are costly.

The filter incorporates a **knurled nut design** on the mounting flange, providing a secure and leak-proof connection that resists vibration and pressure fluctuations, even under extreme operating conditions. Its compact yet sturdy construction ensures easy installation in tight spaces while maintaining optimal flow rates, typically ranging from **10 to 40 gallons per minute (GPM)**, depending on the system s pressure and viscosity requirements. The **absolute micron rating of 20 microns** ensures fine particulate removal, safeguarding hydraulic components from abrasive contaminants that could lead to premature wear, clogging, or system failure.

Constructed from **high-grade materials**, including corrosion-resistant stainless steel and reinforced elastomers, the HH8670F20KNUB is built to withstand pressures up to **500 psi (34.5 bar)**, making it suitable for heavy-duty machinery, mobile hydraulics, and industrial automation systems. The filter s **duplex design** not only enhances operational continuity but also extends the service life of the system by reducing the frequency of filter changes. The replaceable elements are designed for easy access, allowing for quick swaps without draining the system, further minimizing maintenance downtime.

Ideal for applications requiring strict fluid cleanliness, such as **hydraulic presses, injection molding machines, and material handling equipment**, this filter plays a critical role in maintaining system efficiency and longevity. Its **self-cleaning or bypass valve** (depending on configuration) ensures that even if one element becomes clogged, the system remains operational, preventing catastrophic failures. The HH8670F20KNUB is also compatible with a wide range of hydraulic fluids, including mineral-based, synthetic, and biodegradable oils, making it a versatile choice for diverse industrial settings.

With its **modular and adaptable design**, this duplex filter can be integrated into existing hydraulic systems with minimal modifications, offering a cost-effective solution for enhancing fluid purity and system reliability. Whether deployed in a manufacturing plant, construction site, or automotive workshop, the Pall HH8670F20KNUB delivers consistent performance, ensuring that hydraulic fluids remain free of debris, water, and other contaminants that could compromise equipment performance. Its combination of **high filtration efficiency, durability, and ease of maintenance** makes it an indispensable component for any operation prioritizing hydraulic system integrity.

**Pros and Cons of buying a Pall HH8670F20KNUB Duplex Hydraulic Pressure Filter**

The **Pall HH8670F20KNUB** is a duplex hydraulic pressure filter designed for heavy-duty applications, offering redundancy and improved system reliability. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Duplex Design for Redundancy** The filter features two independent filter elements, allowing one to remain in service while the other undergoes maintenance or replacement. This minimizes downtime and ensures continuous system operation.

2. **High Efficiency Filtration** With a **10-micron** rating (or as specified in the model), it effectively removes contaminants, protecting hydraulic components from wear and failure. This extends the lifespan of pumps, valves, and cylinders.

3. **Durable Construction** Built with robust materials, including stainless steel or high-quality plastics, the filter is designed to withstand high pressures and harsh operating conditions common in industrial and mobile hydraulics.

4. **Easy Maintenance** The duplex design simplifies filter changes, as only one element needs to be replaced at a time. The filter housing is typically designed for quick disassembly and reassembly.

5. **Compatibility with Various Fluids** Suitable for use with hydraulic oils, lubricants, and other industrial fluids, making it versatile for different applications, including construction, mining, and marine systems.

6. **Pressure Rating** Capable of handling high-pressure systems (typically up to **400 600 bar**, depending on the exact model and application), ensuring reliable performance in demanding environments.

7. **Extended Service Life** The high-quality filter media reduces clogging, allowing for longer intervals between replacements and reducing operational costs.

8. **OEM and Aftermarket Availability** Widely used in original equipment manufacturer (OEM) applications, it is also available as an aftermarket replacement, offering cost savings without compromising quality.

9. **Reduced Contamination Buildup** The duplex setup helps prevent sudden pressure drops or system failures caused by a single failed filter element, improving overall system reliability.

10. **Space-Saving Design** Compact yet functional, the duplex filter allows for efficient installation in tight spaces without sacrificing performance.

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### **Cons**

1. **Higher Upfront Cost** Compared to single-element filters, the duplex model has a higher initial purchase price, which may be a barrier for smaller operations or budget-conscious buyers.

2. **Complex Installation** Due to its dual-element design, installation and initial setup may require more time and expertise compared to simpler filters. Proper alignment and sealing are critical to prevent leaks.

3. **Maintenance Requirements** While the duplex design reduces downtime, it still requires regular inspection and replacement of filter elements. Neglecting maintenance can lead to reduced efficiency or system failures.

4. **Potential for Cross-Contamination** If not installed or maintained correctly, there is a risk of cross-contamination between the two filter elements, especially during element changes. Proper isolation valves and procedures are necessary to mitigate this.

5. **Limited Customization** The filter is designed for specific applications and may not be easily adaptable to non-standard hydraulic systems without modifications or additional components.

6. **Weight and Bulk** The duplex design adds weight and physical size compared to single-element filters, which may be a consideration in space-constrained or mobile applications.

7. **Element Replacement Costs** Over time, the cost of replacing filter elements can add up, particularly if high-quality or OEM replacements are required.

8. **Pressure Drop Considerations** While duplex filters improve reliability, they may introduce a slight increase in pressure drop compared to single-element filters, especially as elements age and become clogged.

9. **Compatibility with Older Systems** Some older hydraulic systems may not be designed to accommodate duplex filters, requiring additional modifications or adapters.

10. **Training Needs** Operators or maintenance personnel may require training to properly service the duplex filter, ensuring optimal performance and longevity.

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### **Conclusion**

The **Pall HH8670F20KNUB duplex hydraulic pressure filter** is an excellent choice for applications where **reliability, redundancy, and long-term system protection** are critical. Its duplex design minimizes downtime, extends equipment life, and reduces the risk of catastrophic failures due to filter clogs or failures. The high efficiency and durability make it ideal for heavy-duty industrial, mobile, and marine hydraulic systems.

However, the **higher upfront cost, maintenance requirements, and potential complexity of installation** may not justify its use in less demanding applications or budget-limited settings. If the primary concern is cost savings and the system can tolerate occasional downtime for filter changes, a single-element filter might suffice.

For most **high-pressure, high-reliability hydraulic systems** such as those in construction, mining, or large-scale manufacturing the benefits of the duplex filter far outweigh its drawbacks. It is a **strong investment** for operations where **uninterrupted performance and component protection** are non-negotiable.

### **Recommendation**

**Buy the Pall HH8670F20KNUB duplex hydraulic pressure filter if:**

- Your hydraulic system operates under **high pressure or in demanding conditions**.

- **Downtime is costly**, and redundancy is essential to avoid production stops.

- You prioritize **long-term equipment protection** and **extended filter life**.

- Your budget allows for the **higher initial cost** in exchange for reliability.

**Consider an alternative (e.g., a single-element filter) if:**

- Your system has **lower pressure requirements** and can tolerate occasional filter changes.

- **Budget constraints** make the duplex model impractical.

- Your application does not require **continuous operation** without filter redundancy.

For most **critical hydraulic applications**, the **Pall HH8670F20KNUB is a recommended choice** due to its proven performance, durability, and ability to enhance system reliability. Ensure proper installation, regular maintenance, and the use of compatible filter elements to maximize its benefits.

Details:

PALL INDUSTRIAL DUPLEX HYDRAULIC PRESSURE FILTER ASSEMBLY HH8670F20KNUB 8670 SERIES 1200 PSI MAX 50 US GPM INPUT/OUTPUT PORT SIZE 1-1/4 7 MICRON ABSOLUTE FLUOROCARBON/VITON SEAL NOT TESTED, 85LBS 30X18X18, JB-870-E4-3- 1 -HN.

part #: hh8670f20knub price

  • $2250.00

specifications hydraulivalv:

  • brand: Pall Industrial
  • mpn: Hh8670f20knub
  • part type: Hydraulic Pressure Filter
  • input output diameter: 1 1/4 In
  • micron rating: 7 Micron
  • maximum flow rating: 50 Gpm

seller hydraulivalv:

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  • started: June 12, 2026
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part type: hydraulic pressure filter, input output diameter: 1 1/4 in, micron rating: 7 micron, maximum flow rating: 50 gpm,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > hydraulic filters cartridges > hydraulic filters, sku: 15140523843280872,
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  • New – Open box. Offer #1 priced at $2250.00 + $509.57 shipping estimate = $2759.57* total. INPUT/OUTPUT PORT SIZE 1-1/4". PALL INDUSTRIAL.+$509.57 shipping

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