KNF PML17265-UNF Diaphragm Pump Bar 24V 0.46A 100KPA

( Brand: Knf ), ( Manufacturer Part Number: PML17265-UNF ), ( Type: Industrial Automation, Motors ), ( Power Source: Electric ), ( Inlet Diameter: 1/4 In ), ( Maximum Flow Rate: 300 Ml/min ), ( Diaphragm Pump Type: Single Diaphragm Pump ), ( Maximum Pressure: 100 Kpa )

Review KNF 100 Diaphragm Liquid Pump 24v 0.46a Bar

The **KNF PML17265-UNF Diaphragm Pump** is a high-performance, compact, and versatile fluid transfer solution engineered for precision applications requiring reliable and consistent performance in low to medium flow scenarios. Operating on a robust 24V DC power supply with a modest current draw of just 0.46A, this pump delivers exceptional efficiency without compromising on power or reliability. Its maximum operating pressure of **100 kPa (bar)** ensures it can handle a wide range of liquids, including thin fluids, oils, and even slightly viscous substances, making it ideal for laboratory, industrial, and automated systems where controlled fluid movement is critical. The **UNF (Unthreaded) connection** design simplifies installation, allowing for quick and secure attachment to tubing without the need for additional fittings, reducing potential leak points and streamlining setup. Built with KNF s signature durability, this pump features a **long-lasting diaphragm** and a **self-priming mechanism**, ensuring consistent performance even when transferring liquids from partially filled containers or when dealing with air pockets. The compact yet sturdy construction minimizes space requirements while maximizing functionality, making it perfect for integration into tight laboratory setups, automated dispensing systems, or portable fluid handling applications. Whether used for precise dosing in chemical analysis, transferring sensitive biological samples, or managing industrial fluid transfer processes, the PML17265-UNF delivers quiet, vibration-free operation and a high level of accuracy, all while maintaining low energy consumption. Its robust build and minimal maintenance requirements further enhance its appeal for environments where reliability and ease of use are paramount.

### **Pros and Cons of buying a KNF PML17265-UNF Diaphragm Pump (24V, 0.46A, 100 kPa)**

#### **Pros**

1. **Reliability and Durability** KNF is a well-established brand known for high-quality, long-lasting diaphragm pumps. These pumps are designed for continuous operation with minimal maintenance, making them suitable for industrial and laboratory applications.

2. **Precision and Consistency** The pump delivers a steady flow rate and pressure (100 kPa) with minimal pulsation, which is critical for applications requiring accurate fluid handling, such as vacuum systems, gas delivery, or sample preparation.

3. **Low Power Consumption** Operating at 24V and 0.46A, this pump is energy-efficient compared to larger or more powerful alternatives, reducing operational costs over time.

4. **Compact and Lightweight Design** The UNF (Ultra-Narrow Flange) connection allows for easy integration into tight spaces, making it versatile for bench-top or embedded systems.

5. **Chemical Resistance** The diaphragm and internal components are typically made from materials resistant to oils, solvents, and corrosive gases, ensuring longevity in harsh environments.

6. **Quiet Operation** Diaphragm pumps are generally quieter than rotary vane or piston pumps, reducing noise in sensitive applications.

7. **Low Maintenance Requirements** Unlike pumps with seals or rotating parts, diaphragm pumps have fewer wear points, reducing the need for frequent servicing.

8. **Versatile Applications** Suitable for vacuum generation, gas delivery, liquid transfer, and sample aspiration in laboratories, medical devices, and industrial processes.

9. **Long Lifespan** With proper use, KNF pumps are known to last for years, often exceeding 50,000 hours of operation.

10. **Compatibility with Control Systems** Many KNF pumps can be integrated with digital controllers for precise flow and pressure regulation.

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#### **Cons**

1. **Higher Initial Cost** Compared to generic or lower-end diaphragm pumps, KNF products are premium-priced, which may be a barrier for budget-conscious buyers.

2. **Limited Flow Rate** At 100 kPa, this pump is designed for moderate vacuum or low-pressure gas delivery. For high-flow or high-vacuum applications, a larger model may be required.

3. **Sensitivity to Contaminants** While chemically resistant, fine particles or abrasive substances can damage the diaphragm over time, potentially shortening the pump s lifespan if not filtered properly.

4. **Dependence on Power Supply** A stable 24V DC supply is required; fluctuations or power interruptions could affect performance.

5. **Replacement Parts Availability** While KNF has a good reputation, replacement diaphragms or seals may need to be ordered separately, adding to long-term costs.

6. **Not Ideal for High-Temperature Applications** Most diaphragm pumps have temperature limits (typically below 80 C), so extreme heat may require additional cooling.

7. **Potential for Leakage Over Time** As with any mechanical pump, seals and connections can degrade, leading to minor leaks if not maintained.

8. **Learning Curve for Installation** Proper setup, including correct tubing and connection sizes, is essential to avoid performance issues.

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### **Conclusion**

The **KNF PML17265-UNF** is an excellent choice for applications requiring a **reliable, low-maintenance, and energy-efficient diaphragm pump** at moderate pressure (100 kPa). Its **durability, precision, and compatibility with various systems** make it ideal for **laboratories, medical devices, and industrial processes** where consistency and longevity are critical.

However, if **cost is a major concern** or if the application demands **higher flow rates or extreme conditions**, alternative pumps (such as larger KNF models or other brands) may be more suitable. Additionally, users must ensure **proper filtration and maintenance** to maximize the pump s lifespan.

### **Recommendation**

- You need a **durable, low-maintenance, and precise** solution for **vacuum generation, gas delivery, or liquid transfer** at moderate pressure.

- You are working in a **laboratory, medical, or industrial setting** where reliability is paramount.

- You can justify the **premium price** based on long-term performance and reduced downtime.

- You require **higher flow rates** (opt for a larger KNF model or a different pump type).

- You are on a **tight budget** and can find a similarly rated pump from another reputable brand.

- Your application involves **extreme temperatures or highly abrasive substances**, which may require additional safeguards.

For most **moderate-pressure, precision-driven applications**, the **KNF PML17265-UNF is a strong and well-supported choice**.

Details:

P max: 100kPa 1 Bar. Info on Pump: Type: TD: 10/2019. 220 2nd St NW. KNF PML17265-UNF 100 Diaphragm Liquid Pump.

Pulled working from decommissioned system.

part #: pml17265 prices

• $34.95-$225.00

specifications oelemot:

• brand: Knf
• mpn: Pml17265-unf
• type: Industrial Automation, Motors
• power source: Electric
• inlet diameter: 1/4 In
• maximum flow rate: 300 Ml/min
• diaphragm pump type: Single Diaphragm Pump
• maximum pressure: 100 Kpa

payments oelemot:

• wallet: Paypal
• credit card: Visa
• other

seller oelemot:

• rating: 99.8%
• # reviews: 2011
• city: Fayette, Alabama

offer oelemot:

• started: March 31, 2026
• best offers: True
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

shipping oelemot:

• type: Calculated
• carrier: UPS, FedEx, USPS
• service: UPS Ground Saver, FedEx Ground Economy, UPS Ground, USPS Ground Advantage
• class: Economy, Standard
• cost: $9.53
• transit: 3-9 Days

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

returns oelemot:

• time: 30 Days
• method: Money back
• policy: Returns Accepted
• paid by: Buyer