1. Valves And Flow Controls Industrial Automation Control For Sale
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  3. KNF PML4766-NF30

KNF PML4766-NF30 Diaphragm Pump Flow Pressure 0.3L/MIN 24VDC 1BARG

Pml4766-nf30 Knf Diaphragm Liquid Pump 0.3l/min Flow 24vdc 1barg Max Pressure

( Brand: Knf ), ( Manufacturer Part Number: PML4766-NF30 ), ( Part Type: Flow Pressure Pump Min ), ( Maximum Pressure: 1barg )

Review KNF Diaphragm Liquid Pump 0.3l/min Flow 24vdc Max Pressure

The **KNF PML4766-NF30 Diaphragm Pump** is a high-performance, compact, and versatile fluid transfer solution engineered for precision applications requiring reliable, low-flow delivery with consistent pressure control. Part of KNF s renowned **NF30 series**, this pump is designed to handle a wide range of gases and liquids with exceptional efficiency, making it an ideal choice for laboratory, medical, industrial, and automation systems where accuracy and reliability are paramount. Operating at a nominal **0.3 liters per minute (L/min)** flow rate, this pump delivers a steady and pulsation-free output, ensuring smooth operation in sensitive applications such as sample injection, gas chromatography, vacuum systems, or low-pressure fluid transfer in medical devices. Powered by a **24V DC** supply, it offers energy-efficient performance while maintaining a robust **1 bar (14.5 psi) maximum pressure rating**, allowing it to overcome moderate resistance in tubing or filtration systems without compromising on flow consistency. Constructed with **corrosion-resistant materials**, including a durable diaphragm and precision-engineered seals, the PML4766-NF30 is built to withstand prolonged use in demanding environments, including those involving aggressive chemicals or sterile conditions. Its **compact and lightweight design** facilitates easy integration into existing setups, whether mounted on a bench, embedded in a custom system, or used in portable applications. The pump s **silent operation** and minimal vibration further enhance its suitability for noise-sensitive environments, such as laboratories or clinical settings. Additionally, KNF s reputation for **long-term reliability and low maintenance** ensures that this pump requires minimal servicing, reducing downtime and operational costs over its extended service life. Whether used for precise fluid dosing, gas sampling, or low-pressure pneumatic applications, the **KNF PML4766-NF30** combines precision engineering with practical versatility, delivering a dependable solution for engineers, researchers, and technicians who demand both performance and durability in their fluid handling systems.

### **Pros and Cons of buying a KNF PML4766-NF30 Diaphragm Pump (0.3 L/min Flow, 24V DC, 1 Bar Pressure)**

#### **Pros**

1. **Reliable and Durable Construction** KNF is a well-established manufacturer known for high-quality, long-lasting diaphragm pumps. The PML series is designed for industrial and laboratory applications, offering robust performance in demanding environments.

2. **Low Maintenance Requirements** Diaphragm pumps like this one typically have fewer moving parts compared to rotary or centrifugal pumps, reducing wear and tear. They often require less frequent servicing, especially when used with compatible fluids.

3. **Suction and Pressure Capabilities** The 1 bar (14.5 psi) pressure rating and 0.3 L/min flow rate make it suitable for applications requiring moderate suction or pressure, such as vacuum systems, fluid transfer, or small-scale air movement.

4. **Compact and Lightweight Design** The compact size makes it easy to integrate into small systems or confined spaces, which is beneficial for laboratory, medical, or portable applications.

5. **Energy Efficiency** Running on 24V DC, this pump is more energy-efficient than many 110V or 220V alternatives, reducing power consumption and heat generation.

6. **Chemical Resistance** The materials used in diaphragm pumps like this one are often resistant to oils, solvents, and corrosive substances, making it versatile for various fluids (within specified limits).

7. **Quiet Operation** Diaphragm pumps generally operate more quietly than positive displacement pumps with more aggressive mechanisms, which is advantageous in sensitive environments like laboratories or medical settings.

8. **Compatibility with Control Systems** The 24V DC operation allows easy integration with electronic control systems, PLCs, or automated setups.

9. **Minimal Leakage** Properly sealed diaphragm pumps like this one have low internal leakage, ensuring efficient fluid transfer without significant loss.

10. **Long Lifespan with Proper Use** When operated within specifications and maintained correctly, KNF pumps are known to last for years, reducing long-term replacement costs.

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#### **Cons**

1. **Limited Flow Rate** At only 0.3 L/min, this pump is best suited for small-scale applications. Larger systems requiring higher flow rates would need multiple units or a different pump model.

2. **Pressure Limitations** The 1 bar (14.5 psi) pressure rating is moderate. For applications needing higher pressures (e.g., deep vacuum or high-pressure fluid transfer), a different pump would be required.

3. **Cost** KNF pumps are premium products, and this model may be more expensive than generic or lower-end diaphragm pumps. The initial investment could be higher than alternatives.

4. **Fluid Compatibility Restrictions** While resistant to many chemicals, it may not be suitable for highly abrasive, highly viscous, or extremely corrosive fluids without proper modifications or additional components.

5. **Dependence on Power Supply** The 24V DC requirement means you need a compatible power source. If your setup lacks this, an additional power converter may be needed, adding complexity.

6. **Potential for Clogging** If the fluid being pumped contains particulates or debris, the pump s internal components (e.g., diaphragm, valves) could clog or wear prematurely, requiring more frequent maintenance.

7. **Limited Temperature Range** Most diaphragm pumps have operational temperature limits (typically between -10 C and 60 C or similar). Extreme temperatures could affect performance or lifespan.

8. **Noise at High Frequencies** While generally quieter than some pumps, diaphragm pumps can produce slight vibrations or noise at high operational frequencies, which may be noticeable in sensitive applications.

9. **Requires Proper Installation and Venting** Improper installation (e.g., lack of proper venting or incorrect piping) can lead to reduced efficiency or damage. This may require additional setup time or expertise.

10. **Spare Parts Availability** While KNF has a good reputation, spare parts for older or less common models may not always be readily available, potentially increasing downtime if repairs are needed.

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### **Conclusion**

The **KNF PML4766-NF30** is an excellent choice for applications requiring a **reliable, low-maintenance, and compact diaphragm pump** with a **moderate flow rate and pressure**. It excels in **laboratory, medical, or industrial settings** where precision, durability, and quiet operation are priorities. However, its **limited flow and pressure ratings** make it unsuitable for high-volume or high-pressure applications. The **higher upfront cost** and **specific power requirements** (24V DC) may also be drawbacks depending on your budget and setup.

If your application demands **low flow rates (0.3 L/min) and 1 bar pressure** with **minimal maintenance**, this pump is a strong recommendation. For larger or more demanding systems, consider whether a different model (e.g., higher flow rate, higher pressure) or additional units would be more appropriate.

### **Recommendation**

**Buy this pump if:**

- You need a **small, efficient, and reliable** diaphragm pump for **low-flow applications** (e.g., vacuum systems, fluid transfer in labs, or gentle air movement).

- Your system is **24V DC-compatible**, and you can accommodate its **moderate pressure and flow limits**.

- You prioritize **long-term durability and low maintenance** over cost savings.

**Avoid this pump if:**

- You require **higher flow rates or pressure** (e.g., above 1 bar or 1 L/min).

- Your budget is tight, and you can find a **similarly rated generic pump** at a lower cost.

- Your fluids are **highly abrasive, viscous, or corrosive** without proper filtration or modifications.

- You lack the **space or expertise** for proper installation and venting.

For most **precision, low-flow applications**, this KNF pump is a **solid, high-quality investment**. If unsure, consult with KNF s technical support or a pump specialist to confirm compatibility with your specific use case.

Details:

Supply voltage : 24VDC. KNF Diaphragm Liquid Pump. Max Pressure: 1BARG. Specifications: model #: PML4766-NF30.

Flow Rate: 0.3l/min. This is a surplus item.

part #: pml4766nf30 prices

  • $105.45-$190.94

specifications valvplu:

  • brand: Knf
  • mpn: Pml4766-nf30
  • part type: Flow Pressure Pump Min
  • maximum pressure: 1barg

offer valvplu:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 2
  • started: May 20, 2026
  • best offers: True

general valvplu:

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

shipping valvplu:

  • type: Calculated
  • cost: $0.00
  • transit: 2-6 Days
  • carrier: USPS, UPS
  • class: Standard, Expedited, One-day
  • service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope, UPS Next Day Air

seller valvplu:

  • rating: 99.9%
  • # reviews: 46039
  • city: Osseo, Minnesota

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  • time: 30 Days
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  • method: Money back

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part type: flow pressure pump min, maximum pressure: 1barg,
category: business & industrial > pumps pump accessories > vacuum pumps > diaphragm pumps, sku: 12155969699939604,
Knf PML4766-NF30 Is Similar To:
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5 offers $105.45–$190.94 USD
  • Used. Offer #1 priced at $110.00 + $0.00 shipping estimate = $110.00* total. This is a surplus item Max Pressure: .FREE SHIPPING
  • New – Open box. Offer #2 priced at $190.94 + $0.00 shipping estimate = $190.94* total. FREE SHIPPING
  • Used. Offer #3 priced at $105.45 + $0.00 shipping estimate = $105.45* total. P zul: 1 barg.FREE SHIPPING
  • New – Open box. Offer #4 priced at $191.42 + $0.00 shipping estimate = $191.42* total. PUMP, VACUUM, BOS P/N: 279000801.FREE SHIPPING
  • New – Open box. Offer #5 priced at $85.50 + $0.00 shipping estimate = $85.50* total. FREE SHIPPING

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