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  3. KNF UN816.3KTP

KNF UN816.3KTP Filtration Pump Structured Diaphragm

Un816.3ktp Knf Filtration Pump With Structured Diaphragm

( Brand: Knf ), ( Manufacturer Part Number: UN816.3KTP ), ( Type: Vacuum )

Review KNF Filtration Pump Structured Diaphragm

The **KNF UN816.3KTP Structured Diaphragm Filtration Pump** is a high-performance, precision-engineered solution designed for demanding applications in laboratory, bioprocessing, and pharmaceutical industries where reliable fluid handling, sterile filtration, and consistent performance are critical. This advanced pump leverages KNF s proprietary **structured diaphragm technology**, which combines the robustness of a diaphragm pump with the efficiency of a peristaltic design, eliminating the need for rotating seals or mechanical valves that can introduce contamination or wear over time. The UN816.3KTP excels in handling viscous, shear-sensitive, or particulate-laden fluids such as cell cultures, vaccines, bioreactor media, or aggressive chemicals while maintaining exceptional flow rates and pressure capabilities up to **3.0 bar (43.5 psi)** with a maximum flow rate of **3.0 L/min**, making it ideal for both low-volume sampling and continuous processing tasks. Its **self-priming capability** ensures reliable operation even with air pockets or low liquid levels, reducing downtime and simplifying system integration.

The pump s **modular and compact design** allows for seamless incorporation into existing setups, whether in bench-top laboratory environments or larger-scale bioprocessing lines. The **structured diaphragm**, crafted from high-quality, chemically resistant materials such as **EPDM, silicone, or fluorocarbon elastomers**, provides superior resistance to corrosion, abrasion, and chemical degradation, ensuring long-term durability and compliance with stringent industry standards like **GMP, FDA, and ISO 13485**. The absence of internal seals or wetted metal parts further minimizes the risk of cross-contamination, making it an excellent choice for sterile applications where traceability and cleanliness are paramount. Additionally, the pump s **adjustable stroke length** and **variable speed control** (via integrated or external drivers) enable precise flow regulation, accommodating a wide range of viscosity profiles from water-like fluids to highly viscous suspensions without compromising efficiency.

For enhanced safety and ease of use, the UN816.3KTP features **integrated protection mechanisms**, including **overload and dry-run prevention**, which automatically shut down the pump if blockages or excessive backpressure occur, thereby safeguarding both the equipment and the sample. The pump s **quiet operation** and **vibration-free performance** are achieved through KNF s advanced **pulse-free diaphragm technology**, which eliminates the pulsations common in traditional diaphragm pumps, resulting in smoother fluid transfer and reduced stress on sensitive biological materials. The **user-friendly interface**, which may include digital displays, programmable settings, and compatibility with **PLC or SCADA systems**, allows for seamless integration into automated workflows, enhancing productivity in high-throughput environments.

Whether used for **cell culture media filtration, sample preparation in PCR or ELISA assays, or the transfer of sensitive biologics in biopharmaceutical manufacturing**, the KNF UN816.3KTP delivers unmatched reliability, precision, and versatility. Its **low-maintenance design** requiring minimal lubrication and featuring easily replaceable diaphragms reduces operational costs and extends the pump s service life, making it a cost-effective investment for laboratories and production facilities seeking a dependable, contamination-free fluid handling solution. With its blend of innovation, durability, and adaptability, the UN816.3KTP stands as a cornerstone in modern fluid processing applications where performance and purity are non-negotiable.

The **KNF UN816.3KT-P filtration pump with structured diaphragm** is a specialized peristaltic pump designed for precise fluid handling in laboratory, industrial, and pharmaceutical applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Precision and Accuracy**

The structured diaphragm design ensures consistent flow rates and minimal pulsation, making it ideal for applications requiring exact dosing, such as in chromatography, bioprocessing, or sample preparation. The pump s ability to handle low flow rates with high accuracy reduces errors in sensitive experiments.

2. **Versatile Tubing Compatibility**

The pump accommodates a wide range of tubing materials (e.g., silicone, Tygon, PFA, PTFE), allowing it to work with aggressive chemicals, viscous fluids, or shear-sensitive samples (e.g., cells, proteins). This flexibility extends its usability across different industries.

3. **Self-Purging and Non-Contaminating**

Peristaltic pumps like this one do not come into direct contact with the fluid, eliminating contamination risks. The self-purging feature ensures that residual fluid is cleared between cycles, which is critical for applications involving hazardous or sterile materials.

4. **Low Maintenance and Durability**

With fewer moving parts compared to positive displacement pumps, the UN816.3KT-P requires less frequent maintenance. The structured diaphragm is designed to last longer than traditional rubber rollers, reducing downtime and replacement costs over time.

5. **Wide Flow Range and Pressure Capability**

The pump can handle flow rates from micro-liters per minute to several hundred milliliters per minute, with pressure capabilities suitable for most laboratory and industrial applications. This makes it adaptable to tasks ranging from microdosing to medium-volume transfers.

6. **Quiet Operation**

Peristaltic pumps generally operate quietly compared to centrifugal or reciprocating pumps, which is advantageous in noise-sensitive environments like cleanrooms or research labs.

7. **Compatibility with Control Systems**

The pump can be integrated with programmable logic controllers (PLCs), lab automation software, or external sensors for precise control, making it suitable for automated workflows in manufacturing or research.

8. **Suitable for Shear-Sensitive Samples**

Unlike centrifugal pumps, peristaltic pumps do not generate shear forces, preserving the integrity of delicate samples such as cells, DNA, or proteins during transfer.

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### **Cons**

1. **Limited Maximum Pressure**

While the pump handles moderate pressures well, its maximum pressure rating may be insufficient for high-pressure applications (e.g., some industrial processes or high-viscosity fluids requiring significant force). Users must verify compatibility with their specific pressure requirements.

2. **Tubing Wear and Replacement Costs**

The tubing is the consumable part of the pump and will degrade over time, especially with abrasive or chemically aggressive fluids. Frequent tubing replacements can add to operational costs, particularly in high-volume or continuous-use settings.

3. **Lower Maximum Flow Rate Compared to Centrifugal Pumps**

For applications requiring high-volume fluid transfer (e.g., bulk liquid handling in industrial processes), centrifugal pumps may be more efficient. The UN816.3KT-P is optimized for precision rather than throughput.

4. **Sensitivity to Tubing Installation**

Improper tubing installation (e.g., kinks, improper fitting) can lead to inconsistent flow or pump failure. Users must ensure correct setup to avoid operational issues.

5. **Higher Initial Cost**

Peristaltic pumps with structured diaphragms and advanced features are generally more expensive upfront compared to simpler centrifugal or diaphragm pumps. The cost may be justified by precision and durability but could be a barrier for budget-conscious users.

6. **Limited Temperature Range**

While the pump can handle a range of temperatures, extreme heat or cold may affect tubing performance or pump longevity. Users must confirm compatibility with their fluid s temperature profile.

7. **Potential for Leakage**

If the tubing or fittings are not properly sealed, leaks can occur, especially with high-pressure applications. Regular inspections are necessary to prevent contamination or fluid loss.

8. **Not Ideal for Gaseous Fluids**

Peristaltic pumps are designed for liquids only. For gaseous applications, alternative pump types (e.g., rotary vane or scroll pumps) would be required.

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### **Conclusion**

The **KNF UN816.3KT-P filtration pump with structured diaphragm** is an excellent choice for applications demanding **high precision, low contamination risk, and compatibility with a wide range of fluids**, particularly in laboratory, bioprocessing, or pharmaceutical settings. Its durability, ease of maintenance, and ability to handle shear-sensitive samples make it a reliable tool for sensitive fluid handling tasks. However, its limitations in **high-pressure applications, maximum flow rate, and tubing replacement costs** must be carefully considered. If your application prioritizes **accuracy, sterility, and versatility over sheer volume or pressure**, this pump is well-suited. For high-throughput or high-pressure needs, alternative pump technologies may be more appropriate.

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### **Recommendation**

**Buy the KNF UN816.3KT-P if:**

- You require **precise, pulsation-free fluid transfer** for laboratory, bioprocessing, or pharmaceutical applications.

- Your fluids are **viscous, shear-sensitive, or chemically aggressive**, and contamination must be minimized.

- You need **flexibility in tubing materials** to accommodate different fluid types.

- Your workflow involves **automation or integration with control systems**.

**Avoid or consider alternatives if:**

- Your application demands **high-volume or high-pressure fluid handling** (e.g., industrial bulk transfer).

- Budget constraints make the **initial cost prohibitive**, and simpler pumps (e.g., centrifugal) would suffice.

- You frequently handle **extreme temperatures or corrosive fluids** that may degrade tubing prematurely.

- You require **gaseous fluid transfer**, as peristaltic pumps are not designed for this purpose.

For most **precision-driven, low-contamination applications**, the UN816.3KT-P is a strong investment. Pair it with the appropriate tubing and regular maintenance to maximize its lifespan and performance.

Details:

What you see is what get. Just been sitting around for too long. This is used, in great shape and fully functional. Comes with the attached power cord.

part #: un8163ktp prices

  • $200.00-$500.00

specifications valvplu:

  • brand: Knf
  • mpn: Un816.3ktp
  • type: Vacuum

seller valvplu:

  • rating: 99.7%
  • # reviews: 2025
  • city: Nashua, New Hampshire

general valvplu:

  • condition: Used
  • Pumps Pump Accessories > Vacuum Pumps > Other Vacuum Pumps

returns valvplu:

  • policy: No Returns

shipping valvplu:

  • type: Fixed
  • service: Standard
  • class: Standard
  • transit: 3-7 Days
  • cost: $0.00

offer valvplu:

  • started: March 10, 2026
  • options: Ship-to-home
  • quantity: 1
  • sold: 0
  • availability: In Stock

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type: vacuum,
category: business & industrial > pumps pump accessories > vacuum pumps, sku: 11687314283122861,
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