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KNF PJ25539-920 Diaphragm Vacuum Pump Laboratory

Pj25539-920 Knf Diaphragm Vacuum Pump Laboratory Industrial Equipment - Tested

( Brand: Knf ), ( Manufacturer Part Number: PJ25539-920 ), ( Part Type: Vacuum Pump ), ( Body Material: Aluminum ), ( Power Source: Electric ), ( Diaphragm Pump Type: Single Diaphragm Pump ), ( Country Of Origin: Germany ), ( California Prop 65 Warning: This Item May Contain Materials Known To The State Of California To Cause Cancer Or Reproductive Harm. )

Review KNF Diaphragm Vacuum Pump Laboratory Industrial Equipment Tested

KNF PJ25539-920 Diaphragm Vacuum Pump for Laboratory Applications

The KNF PJ25539-920 Diaphragm Vacuum Pump is a versatile and reliable piece of equipment, meticulously designed for a wide range of laboratory applications. This pump, manufactured by KNF Neuberger, a globally recognized leader in fluid handling and diaphragm pump technology, promises unparalleled performance and durability.

The KNF PJ25539-920 Diaphragm Vacuum Pump operates on a unique diaphragm principle, ensuring smooth and quiet operation. The diaphragm, made from high-quality materials, provides excellent resistance to abrasion and chemical attack, making it suitable for handling a variety of fluids, including corrosive ones. The pump's double-acting design allows for efficient and consistent vacuum generation, while minimizing energy consumption.

The pump's maximum pumping speed of 80 l/min (at 30 kPa absolute) and maximum vacuum level of 25 kPa absolute cater to a broad spectrum of laboratory needs. It is equipped with a built-in vacuum relief valve, which automatically releases excess pressure to ensure safe and stable operation.

The KNF PJ25539-920 Diaphragm Vacuum Pump is compact and lightweight, making it easy to install and maneuver within the laboratory environment. Its robust construction, combined with a durable stainless steel housing, ensures long-lasting performance even under heavy usage.

In summary, the KNF PJ25539-920 Diaphragm Vacuum Pump is an ideal choice for any laboratory requiring a reliable, efficient, and versatile vacuum pump. Its high-quality components, user-friendly design, and robust construction make it an indispensable tool for various laboratory applications.

The KNF PJ25539-920 Diaphragm Vacuum Pump for laboratory use is a specialized piece of equipment designed for various applications, particularly in the field of vacuum technology. Here, we will examine its pros and cons to help you make an informed decision.

Pros:

1. High-quality construction: KNF is known for its durable and reliable products, and the PJ25539-920 is no exception. It has a sturdy design that promises long-lasting performance.

2. Low-noise operation: The diaphragm vacuum pump operates at a lower noise level compared to other types of vacuum pumps, making it more suitable for laboratory environments where noise control is crucial.

3. Maintenance-friendly: The pump's diaphragm design allows for easy maintenance, as the replaceable components can be easily swapped out when necessary.

4. Energy-efficient: The diaphragm pump consumes less energy than other types of vacuum pumps, resulting in lower operational costs.

5. Wide range of applications: This pump is suitable for a variety of laboratory applications, including liquid handling, filtration, and vacuum degassing.

Cons:

1. Higher initial cost: Compared to some other types of vacuum pumps, the KNF PJ25539-920 may have a higher initial cost, which could be a deterrent for some buyers.

2. Limited flow rate: While suitable for many laboratory applications, the pump may not be able to handle high flow rates required for certain industrial applications.

3. Potential for air leakage: As with any diaphragm pump, there is a possibility of air leakage over time, which could affect the pump's performance.

Conclusion:

The KNF PJ25539-920 Diaphragm Vacuum Pump offers several advantages for laboratory use, including its high-quality construction, low-noise operation, maintenance-friendly design, energy-efficiency, and wide range of applications. However, it may have a higher initial cost and potential issues with air leakage.

Recommendation:

If you are in the market for a high-performance, reliable vacuum pump for your laboratory, the KNF PJ25539-920 is a strong contender. Its durability, ease of maintenance, and energy-efficiency make it a worthwhile investment for many laboratory applications. Just be mindful of the higher initial cost and potential air leakage issues, and ensure that the pump's flow rate is sufficient for your specific needs. It is always a good idea to consult with a laboratory equipment expert or KNF's customer service for additional guidance.

Details:

See photos for more detail. Bench tested with external power supply not included. Standard signs of use. Some scratches and scuffs on case.

Does not include a mounting plate or power supply rubber insulators are installed for attachment to surface. Pump operates normally. KNF Diaphragm Vacuum Pump PJ25539-920 Laboratory Industrial Equipment - Tested and fully functional. May have cosmetic wear and/or scuffs.

Includes only what is pictured.

part #: pj25539920 price

  • $499.99

specifications valvplu:

  • brand: Knf
  • mpn: Pj25539-920
  • part type: Vacuum Pump
  • body material: Aluminum
  • power source: Electric
  • diaphragm pump type: Single Diaphragm Pump
  • country of origin: Germany
  • california prop 65 warning: This Item May Contain Materials Known To The State Of California To Cause Cancer Or Reproductive Harm.

payments valvplu:

  • wallet: Apple-pay
  • other
  • credit card: Mastercard

shipping valvplu:

  • transit: 3-9 Days
  • cost: $34.43
  • service: UPS Ground, USPS Ground Advantage, USPS Priority Mail, UPS Next Day Air
  • type: Calculated
  • carrier: UPS, USPS
  • class: Standard, Expedited, One-day

general valvplu:

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

seller valvplu:

  • city: Coventry, Rhode Island
  • # reviews: 15602
  • rating: 99.9%

returns valvplu:

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

offer valvplu:

  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • sold: 0
  • started: January 27, 2026
part type: vacuum pump, body material: aluminum, power source: electric, diaphragm pump type: single diaphragm pump, country of origin: germany, california prop 65 warning: this item may contain materials known to the state of california to cause cancer or reproductive harm.,
category: business & industrial > pumps pump accessories > vacuum pumps > diaphragm pumps, sku: 11444472576318771,
Knf PJ25539-920 Is Similar To:
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2 offers $499.99–$499.99 USD
  • Used. Offer #1 priced at $499.99 + $66.54 shipping estimate = $566.53* total. Pmax +50kPa / 0.5 bar. Working when pulled, but not bench tested after removal.+$66.54 shipping
  • Used. Offer #2 priced at $499.99 + $37.92 shipping estimate = $537.91* total. Tested and fully functional. Pump operates normally.+$37.92 shipping

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