EBARA TECHNOLOGIES EV-S20PA Water Cooled Vacuum Pump 500408384

( Brand: Ebara Technologies ), ( Manufacturer Part Number: EV-S20PA ), ( Part Type: Vacuum Pump )

Review EBARA TECHNOLOGIES Ev Water Cooled Vacuum Pump Refurbished

The **Ebara EV-S20PA Water-Cooled Vacuum Pump (Model 500408384)** is a high-performance, oil-sealed rotary vane vacuum pump designed for demanding industrial applications requiring precise and reliable vacuum generation. Engineered with advanced manufacturing techniques, this pump delivers exceptional efficiency, durability, and versatility, making it an ideal choice for laboratories, semiconductor fabrication, chemical processing, and other precision vacuum systems. Its robust construction features a compact yet sturdy housing, crafted from high-grade materials to withstand continuous operation under challenging conditions, including high temperatures and corrosive environments. The pump operates on a water-cooling system, ensuring optimal thermal management and extended component lifespan by dissipating heat effectively without the need for external cooling units, which simplifies installation and reduces operational complexity.

At the heart of the EV-S20PA lies a precision-engineered rotary vane mechanism, which provides smooth and consistent vacuum performance with minimal pulsation, critical for applications requiring stable pressure control. The pump s oil-sealed design ensures reliable sealing and lubrication, reducing wear and tear on internal components while maintaining a high level of vacuum integrity. The integrated water-cooling jacket not only prevents overheating but also enhances the pump s ability to handle high-volume gas loads, making it suitable for applications with fluctuating demand. With a nominal displacement of 20 cubic meters per hour (or equivalent CFM), this pump offers a balanced performance profile, capable of achieving ultimate vacuums as low as approximately 0.1 mbar (10 Torr), depending on the specific configuration and downstream system requirements.

The EV-S20PA is equipped with a user-friendly control interface, often featuring digital displays for real-time monitoring of critical parameters such as vacuum level, oil temperature, and water flow rate. This level of instrumentation allows operators to optimize performance, detect potential issues early, and ensure compliance with operational standards. The pump s design also incorporates safety features, such as automatic water flow monitoring and overheating protection, to prevent damage and enhance operational safety. Additionally, the compact footprint and modular design of the EV-S20PA facilitate easy integration into existing vacuum systems, whether in new installations or retrofitted setups, without compromising on performance or efficiency.

Built for longevity, the EV-S20PA incorporates high-quality seals, bearings, and vanes that are resistant to wear and degradation, even under prolonged use. The pump s oil is specifically formulated to provide superior lubrication and contamination resistance, further extending the service life of internal components. Maintenance is streamlined with accessible service points, allowing for quick oil changes, vane replacements, and routine inspections without requiring specialized tools or extensive downtime. Ebara s reputation for innovation and reliability ensures that this vacuum pump adheres to stringent quality standards, offering a cost-effective solution for industries where precision and dependability are paramount.

In summary, the **Ebara EV-S20PA Water-Cooled Vacuum Pump (500408384)** represents a pinnacle of engineering excellence, combining robust construction, advanced cooling technology, and high-performance vacuum generation in a single unit. Whether used in research laboratories, manufacturing processes, or specialized industrial applications, this pump delivers consistent, high-quality vacuum performance with minimal operational hassle. Its combination of efficiency, durability, and ease of maintenance makes it a standout choice for professionals seeking a reliable partner in their vacuum system requirements.

### **Pros and Cons of buying a Ebara EV-S20PA Water-Cooled Vacuum Pump (Model 500408384)**

1. **High Performance and Efficiency** The Ebara EV-S20PA is a robust rotary vane vacuum pump designed for high vacuum applications, offering excellent suction power and stability. It is well-suited for industrial processes requiring precise control, such as vacuum drying, degassing, or laboratory applications.

2. **Water-Cooled Design** Unlike air-cooled pumps, the water-cooled version provides superior heat dissipation, allowing for continuous operation without overheating. This is particularly beneficial in high-demand or long-running applications where thermal management is critical.

3. **Durability and Reliability** Ebara is a reputable manufacturer known for producing high-quality, long-lasting vacuum pumps. The EV-S20PA is built with durable materials, including stainless steel components, which enhance resistance to corrosion and wear.

4. **Low Maintenance Requirements** The pump features a sealed design with minimal moving parts exposed to contaminants, reducing the frequency of maintenance. The water-cooling system also helps prevent oil degradation, extending the lifespan of the lubricant.

- **Chemical and pharmaceutical processing** (for vacuum distillation, filtration, or drying).

- **Food and beverage industry** (for vacuum packaging or concentration processes).

- **Laboratories** (for analytical instruments requiring stable vacuum levels).

- **Plastics and rubber industries** (for degassing or molding applications).

6. **Quiet Operation** Compared to some other vacuum pumps, the Ebara EV-S20PA operates relatively quietly, making it suitable for environments where noise reduction is important.

7. **Compatibility with Ebara s Ecosystem** If you already use other Ebara equipment, this pump integrates seamlessly with their control systems and accessories, simplifying maintenance and upgrades.

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1. **Higher Initial Cost** Ebara pumps are premium products, and the EV-S20PA is no exception. The upfront cost is significantly higher than that of generic or lower-end vacuum pumps, which may be a barrier for small businesses or budget-conscious buyers.

2. **Specialized Maintenance Needs** While the pump is durable, it requires proper maintenance, including regular oil changes, water cooling system checks, and occasional part replacements. Improper maintenance can lead to reduced performance or premature failure. This may necessitate training for operators or hiring specialized technicians.

3. **Water Supply Dependency** Since the pump is water-cooled, it requires a consistent and clean water supply. In locations with poor water quality or unreliable water pressure, additional filtration or a backup system may be needed, adding complexity and cost.

4. **Limited Availability of Parts** As an older or specialized model, finding replacement parts (especially OEM parts) may be challenging. Buyers should ensure they have access to a reliable supplier or stockpile critical components to avoid downtime.

5. **Energy Consumption** High-performance pumps like this one consume more power than smaller or less efficient models. For operations with strict energy budgets, the operational costs over time may be a consideration.

6. **Size and Installation Complexity** The EV-S20PA is a larger unit, requiring adequate space for installation. It may also need specialized mounting or ventilation, which could complicate setup in tight or existing facilities.

7. **Potential for Oil Contamination** Like all oil-sealed rotary vane pumps, there is a risk of oil carryover into the vacuum system, which can contaminate processes. Additional traps or filtration may be required to mitigate this issue.

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The **Ebara EV-S20PA (500408384)** is a **highly capable, durable, and efficient** water-cooled vacuum pump ideal for demanding industrial, laboratory, or process applications where reliability and performance are critical. Its **premium build quality, low maintenance needs, and versatility** make it a strong choice for users who prioritize long-term value and stability. However, the **higher cost, specialized maintenance requirements, and dependency on water cooling** may pose challenges for smaller operations or those with limited technical resources.

If your application **requires consistent high vacuum, continuous operation, or resistance to thermal stress**, this pump is an excellent investment. Conversely, if **budget constraints, space limitations, or simpler applications** are a priority, a lower-cost or air-cooled alternative might be more suitable.

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- You need a **reliable, high-performance vacuum pump** for industrial or laboratory use.

- Your application involves **high-temperature processes, long operating hours, or demanding suction requirements**.

- You can **maintain a clean water supply** and are prepared for **regular, though minimal, maintenance**.

- You value **brand reputation and longevity**, justifying the higher upfront cost.

- Your budget is **limited**, and you can find a similarly performing pump at a lower cost (e.g., other rotary vane pumps or dry vacuum pumps).

- Your facility lacks **proper water cooling infrastructure**, making installation or operation difficult.

- Your application is **low-demand or intermittent**, where a smaller or simpler pump would suffice.

- You require **oil-free operation**, as this pump is oil-lubricated and may not meet strict cleanliness requirements.

**Final Verdict:** For users who can justify the investment, the **Ebara EV-S20PA is a top-tier choice** that delivers exceptional performance and durability. However, potential buyers should carefully assess their **operational needs, budget, and maintenance capabilities** before purchasing. If possible, consult with an Ebara distributor or a vacuum system specialist to ensure the pump aligns with your specific application.

Details:

Item condition: Manufacturer Refurbished, 90 Day Warranty. This item is manufacturer refurbished. Part No: EV-S20PA. IPN: 500408384.

Sale Details. Serial numbers or country of manufacture may vary. Pictured test equipment is not included or available for sale. Model No: EV.

Only items pictured are included: If a part is not pictured, or mentioned above, then it included in the sale. EV Ebara Technologies EV-S20PA Water Cooled Vacuum Pump 500408384 Refurbished. The physical condition is good, but there may be signs of previous use and handling. Estimated Packed Shipping Dimensions: L x WTBD STD lbs.

part #: evs20pa price

• $15006.26

specifications valvplu:

• brand: Ebara Technologies
• mpn: Ev-s20pa
• part type: Vacuum Pump

offer valvplu:

• availability: In Stock
• quantity: 1
• sold: 0
• best offers: True
• started: June 8, 2026
• options: Ship-to-home

seller valvplu:

• # reviews: 10617
• city: Albuquerque, New Mexico
• rating: 99.7%

general valvplu:

• Pumps Pump Accessories > Vacuum Pumps > Other Vacuum Pumps
• condition: Seller refurbished

shipping valvplu:

returns valvplu:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 60 Days

payments valvplu:

• credit card: Mastercard
• wallet: Paypal
• other

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