1. Valves And Flow Controls Industrial Automation Control For Sale
  2. sku: 11529123824924633
  3. KNF NF30KPE

KNF NF30KPE Diaphragm Pump Hose Barb Head 1BAR 115VAC 35W 4MM 6M 0.3L/MIN

Nf30kpe Knf Diaphragm Pump 1bar 115vac 35w 4mm Hose Barb 6m Head 0.3l/min

( Brand: Knf ), ( Manufacturer Part Number: NF30KPE ), ( Part Type: Pump Hose Head Min )

Review KNF Diaphragm Pump 1bar 115vac 35w 4mm Hose Barb 6m Head 0.3l/min

The **KNF nF30KPE** is a compact yet highly efficient diaphragm pump designed for precision fluid transfer in laboratory, industrial, and research applications where reliability and quiet operation are paramount. Engineered with a robust yet lightweight construction, this pump delivers a consistent flow rate of **0.3 liters per minute** while maintaining a maximum working pressure of **1 bar**, making it ideal for applications requiring gentle yet controlled fluid movement such as sample preparation, reagent dispensing, or low-pressure filtration. Powered by a **35-watt motor** rated for **115V AC**, the nF30KPE operates smoothly and efficiently, minimizing energy consumption while ensuring long-term durability. Its **diaphragm-driven mechanism** provides pulsation-free flow, reducing shear stress on delicate samples and preventing contamination, which is critical for applications in biochemistry, cell culture, or pharmaceutical testing.

The pump s **6-meter head height** allows for flexible installation in laboratory setups where space is limited, enabling vertical or horizontal fluid transfer without compromising performance. Equipped with a **4mm hose barb**, it seamlessly integrates with standard laboratory tubing, offering versatility for connecting to syringes, peristaltic tubing, or custom fluid pathways. The **NF (Noise-Free) series** designation underscores its whisper-quiet operation, making it an excellent choice for environments where noise disruption is a concern, such as shared lab spaces or sensitive analytical setups. Built with precision engineering, the nF30KPE features a **self-priming design**, ensuring reliable startup even when the inlet is partially filled, while its corrosion-resistant materials and sealed construction enhance longevity in demanding environments. Whether used for precise liquid handling, vacuum assistance, or low-pressure aspiration, this pump combines efficiency, quiet operation, and ease of use to streamline fluid management tasks with confidence.

### **Pros and Cons of the KNF N-Free 30KPE Diaphragm Pump (1 Bar, 115VAC, 35W, 4mm Barb, 6m Head, 0.3 L/min)**

#### **Pros:**

1. **Reliable Performance** Diaphragm pumps are known for their durability and ability to handle abrasive or viscous fluids without clogging, making them suitable for laboratory, industrial, or medical applications.

2. **Low Maintenance** Fewer moving parts compared to rotary or centrifugal pumps reduce wear and tear, leading to longer operational life with minimal upkeep.

3. **Quiet Operation** The design minimizes vibration and noise, which is beneficial in sensitive environments like laboratories or cleanrooms.

4. **Versatile Fluid Handling** Can pump air, gases, or liquids (depending on material compatibility) without requiring priming, making it convenient for applications like vacuum generation, aeration, or sample transfer.

5. **Compact and Portable** The small size (0.3 L/min flow rate) makes it ideal for bench-top or portable setups where space is limited.

6. **Energy Efficiency** At only 35W, it consumes minimal power, reducing operational costs.

7. **Low Head Pressure (6m)** Suitable for applications requiring gentle fluid movement without high resistance.

8. **Easy Installation** Simple connection via a 4mm barb fitting, and the 115VAC power requirement aligns with standard lab or household electrical systems.

9. **Corrosion Resistance** The materials used in KNF pumps are typically resistant to many chemicals, extending the pump s lifespan in harsh environments.

10. **Precision Control** Can be used for delicate processes where consistent, low-flow rates are required.

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#### **Cons:**

1. **Limited Flow Rate (0.3 L/min)** The low flow rate restricts its use to small-scale applications. Larger processes requiring higher volumes would need a different pump.

2. **Pressure Limitations (1 Bar)** The maximum pressure of 1 bar may be insufficient for applications requiring higher vacuum or positive pressure (e.g., some industrial filtration or high-flow aeration systems).

3. **Hose Compatibility** The 4mm barb may limit flexibility in connecting to larger or specialized tubing, requiring adapters in some cases.

4. **Cost Relative to Output** While efficient, the price may be higher than basic peristaltic or syringe pumps for very low-flow applications, depending on the budget.

5. **Not Suitable for High-Viscosity Liquids Without Modifications** While diaphragm pumps handle some viscous fluids, extreme viscosities may require specialized models or adjustments.

6. **Single-Phase Power Only (115VAC)** Not compatible with 230VAC systems without a converter, which adds complexity and cost.

7. **Potential for Leaks** Like all pumps, improper sealing or wear over time can lead to leaks, requiring periodic inspection.

8. **Limited Temperature Range** Most diaphragm pumps have operational temperature limits (typically 0 C to 60 C), which may restrict use in extreme environments.

9. **Noisy Under Load (Depending on Model)** While generally quiet, some users report slight humming or vibration at higher loads.

10. **Replacement Parts Dependency** KNF is a reputable brand, but reliance on their specific parts for maintenance or upgrades can be costly if not readily available.

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### **Conclusion:**

The **KNF N-Free 30KPE** is an excellent choice for **low-flow, low-pressure applications** where reliability, quiet operation, and ease of use are prioritized. It excels in **laboratory settings, small-scale aeration, vacuum generation, or gentle fluid transfer** tasks. However, its **limited flow rate (0.3 L/min) and pressure (1 bar) make it unsuitable for high-volume or high-pressure processes**. If your application requires higher flow rates, greater pressure, or compatibility with 230VAC systems, you may need to consider alternative pumps.

For users working with **air, gases, or low-viscosity liquids in controlled environments**, this pump offers a **low-maintenance, efficient, and durable solution**. If budget is a concern, compare it with other diaphragm pumps or peristaltic pumps (which may be cheaper for very low flows) before purchasing.

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### **Recommendation:** **Buy the KNF N-Free 30KPE if:**

- You need a **reliable, low-maintenance pump** for **air, gas, or gentle liquid transfer** (e.g., lab aeration, vacuum assistance, or sample handling).

- Your application requires **low flow (0.3 L/min) and low pressure (1 bar)**.

- You operate in a **115VAC environment** and need a compact, quiet solution.

- You prioritize **durability and corrosion resistance** over maximum flow or pressure.

**Consider alternatives if:**

- You need **higher flow rates** (e.g., >1 L/min) or **greater pressure** (e.g., >1 bar).

- Your setup requires **230VAC power**.

- You are working with **high-viscosity fluids** that may require specialized pumps.

- Cost is a major factor, and other pumps (e.g., peristaltic or syringe pumps) offer sufficient performance at a lower price.

For most **small-scale, precision applications**, this pump is a **solid investment** due to its reliability and versatility. Always verify compatibility with your specific fluids and system requirements before finalizing the purchase.

Details:

This is a surplus item. KNF Diaphragm Pump. Specifications: model #: NF30KPE, 3/. Max Head: 6 Meters H20.

Operating voltage : 115VAC 35W. If you do not have an account No Worries. Fluid Connection: 4mm Hose Barb, For ID.

part #: nf30kpe price

  • $179.00

specifications valvplu:

  • brand: Knf
  • mpn: Nf30kpe
  • part type: Pump Hose Head Min

offer valvplu:

  • best offers: True
  • started: February 10, 2026
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 1

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  • time: 30 Days
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seller valvplu:

  • city: Osseo, Minnesota
  • # reviews: 43472
  • rating: 100.0%

general valvplu:

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

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part type: pump hose head min,
category: business & industrial > pumps pump accessories > vacuum pumps > diaphragm pumps, sku: 11529123824924633,
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1 offer $179.00 USD
  • Used. Offer #1 priced at $179.00 + $0.00 shipping estimate = $179.00* total. If you do not have an account No Worries! Model # : , 3/11074819061.FREE SHIPPING

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