VARIAN 9698928M002 Tv Turbo Vacuum Pump 401/301 300-MS

( Brand: Varian ), ( Manufacturer Part Number: 9698928M002 ), ( Type: Vacuum ), ( Unit Type: Unit ), ( Country Of Origin: Italy )

Review VARIAN Tv 401/301 Turbo Vacuum Pump Tested

The **Varian 9698928M002 Turbo Vacuum Pump (300-MS)** is a high-performance, oil-sealed turbomolecular pump designed for demanding applications requiring ultra-high vacuum (UHV) environments. Engineered with precision and durability in mind, this pump is ideal for scientific research, semiconductor manufacturing, thin-film deposition, mass spectrometry, and other industries where exceptional vacuum performance is critical. The 300-MS model features a robust and compact design, combining efficiency with reliability to achieve ultimate vacuum levels as low as **10 Torr (10 Pa)** without the need for cryogenic cooling, making it a versatile choice for laboratories and production facilities alike.

At its core, the Varian 9698928M002 operates using a turbomolecular principle, where a series of rotating and stationary blades create a high-speed molecular flow that efficiently evacuates gases from the system. The pump s **three-stage turbine assembly** ensures rapid pumping speeds, with a nominal throughput of **300 liters per second (L/s)** at nitrogen, allowing it to handle a wide range of gases while maintaining stability. The oil-sealed design incorporates a high-performance, low-vapor-pressure lubricant that minimizes contamination risks, ensuring long-term reliability and reducing the need for frequent maintenance. This feature is particularly advantageous in applications where cleanliness and purity are paramount, such as in semiconductor wafer processing or analytical instrumentation.

The pump s robust construction includes a **stainless steel housing** with precise machining to maintain alignment and minimize vibrations, which is essential for sensitive experiments or high-precision equipment. The integrated **forevacuum system** (typically connected to a roughing pump) ensures efficient operation by maintaining optimal pressure differentials, while the **automatic oil circulation system** helps regulate temperature and prevent overheating, extending the pump s operational lifespan. Additionally, the Varian 9698928M002 is equipped with **digital control interfaces**, including options for **RS-232 or Ethernet connectivity**, allowing for seamless integration with laboratory automation systems and remote monitoring. This level of control enhances user convenience and enables precise tuning of vacuum parameters for optimal performance.

Safety and ease of use are also prioritized in the design of this turbomolecular pump. The unit includes **built-in pressure sensors and alarms** to detect abnormal conditions, such as excessive backpressure or oil temperature fluctuations, thereby preventing potential damage to the pump or the connected system. The **modular design** allows for easy access to internal components for maintenance, reducing downtime and ensuring that servicing can be performed efficiently. Furthermore, the pump s **low noise operation** (typically below 60 dB) makes it suitable for use in shared laboratory environments without causing disruption.

Whether deployed in a cutting-edge research facility, a semiconductor fabrication plant, or a specialized analytical lab, the **Varian 9698928M002 Turbo Vacuum Pump (300-MS)** delivers a perfect balance of speed, precision, and reliability. Its ability to achieve and maintain ultra-high vacuum levels with minimal maintenance requirements makes it a cornerstone of modern vacuum technology, empowering scientists and engineers to push the boundaries of their work with confidence.

### **Pros and Cons of buying a Varian 9698928M002 TV 401/301 Turbo Vacuum Pump (300 mTorr Base Pressure)**

1. **High Performance and Efficiency**

- Achieves a base pressure of **300 mTorr**, suitable for many laboratory and industrial applications requiring medium to high vacuum levels.

- Turbo molecular pump design provides fast pumping speeds, reducing cycle times in processes like thin-film deposition, mass spectrometry, and surface science experiments.

2. **Reliability and Durability**

- Varian is a well-established manufacturer in vacuum technology, known for producing robust and long-lasting equipment.

- The pump is designed for continuous operation, making it suitable for heavy-duty laboratory use.

3. **Compatibility with Forepumps**

- Works with a **dry or oil-sealed rotary vane fore-pump**, offering flexibility in setup depending on application needs and budget constraints.

4. **Modular and Upgradable**

- The TV 401/301 series is part of Varian s modular line, meaning it can be integrated with other Varian components (e.g., controllers, gauges) for a cohesive system.

- Some models allow for future upgrades or modifications to meet evolving research or production demands.

5. **Energy Efficiency Compared to Oil-Sealed Pumps**

- Turbo pumps generally consume less power than oil-sealed rotary vane pumps for similar performance levels, reducing operational costs over time.

6. **Low Maintenance (Compared to Oil-Based Systems)**

- Since it is a dry pump (if paired with a dry fore-pump), it eliminates the need for oil changes, reducing maintenance downtime and contamination risks in sensitive applications.

7. **Versatility in Applications**

- Thin-film deposition (sputtering, evaporation)

- Mass spectrometry

- Surface analysis (XPS, AES)

- Semiconductor processing

- Chemical vapor deposition (CVD)

---

1. **High Initial Cost**

- Turbo pumps are generally more expensive upfront than traditional rotary vane pumps, especially when factoring in the cost of a compatible fore-pump and additional accessories (e.g., controllers, gauges).

2. **Sensitivity to Contaminants**

- While turbo pumps are less prone to oil contamination than oil-sealed systems, they can still be damaged by particulate matter, water vapor, or corrosive gases if not properly protected.

- Requires the use of **roughing lines, cold traps, or baffles** to prevent backstreaming of contaminants from the fore-pump.

3. **Noise Levels**

- Turbo pumps can be **loud**, especially during startup or when operating at high speeds. This may require additional soundproofing or placement considerations in a lab or industrial setting.

4. **Limited Lifespan Compared to Rotary Vane Pumps**

- Turbo pumps have moving parts (rotor, bearings, and seals) that wear out over time, typically requiring **periodic maintenance or replacement of components** (e.g., bearings, rotor seals).

- The lifespan depends heavily on usage conditions and maintenance practices.

5. **Dependence on Fore-Pump Performance**

- The overall system performance is only as good as the fore-pump. A poorly maintained or inefficient fore-pump can degrade the turbo pump s effectiveness and increase downtime.

6. **Complexity in Installation and Operation**

- Requires proper alignment, vacuum line design, and sometimes specialized knowledge for optimal performance.

- May need additional components (e.g., vacuum gauges, controllers) to monitor and control operation effectively.

7. **Potential for Higher Operating Costs**

- While turbo pumps are energy-efficient, the cost of **replacement parts (e.g., bearings, seals) and maintenance** can add up over time.

- If not properly maintained, inefficiencies (e.g., gas load, leaks) can increase energy consumption.

8. **Not Ideal for Ultra-High Vacuum (UHV) Applications**

- While it reaches **300 mTorr**, this pump is not designed for ultra-high vacuum (typically

---

The **Varian 9698928M002 TV 401/301 Turbo Vacuum Pump** is a **high-performance, reliable choice** for applications requiring **medium to high vacuum levels (down to 300 mTorr)**. It excels in **speed, efficiency, and compatibility with modern laboratory processes**, making it a strong investment for research, semiconductor, or materials science applications. However, its **high upfront cost, sensitivity to contaminants, and maintenance requirements** must be carefully considered.

- Laboratories with **budgets for premium vacuum equipment**.

- Applications where **fast pumping speeds and clean vacuum environments** are critical.

- Users who can **invest in proper accessories (fore-pumps, gauges, cold traps)** to ensure longevity and performance.

For **budget-conscious users or applications requiring only rough or medium vacuum**, a **rotary vane pump** (oil-sealed or dry) may be a more cost-effective alternative. Conversely, if **ultra-high vacuum (UHV) or extreme cleanliness** is required, a **dedicated UHV turbo pump or cryopump system** would be necessary.

---

You need **reliable, fast vacuum performance** for applications like **thin-film deposition, mass spectrometry, or surface analysis**.

Your budget allows for a **premium vacuum solution** with long-term efficiency gains.

You are prepared to **invest in complementary equipment (fore-pump, gauges, cold traps)** and **maintenance protocols** to maximize lifespan.

Your lab or facility can **accommodate noise and space requirements** without significant modifications.

You require **ultra-high vacuum (UHV) or extreme cleanliness** opt for a **dedicated UHV turbo pump or cryopump**.

Your budget is **limited** evaluate **dry or oil-sealed rotary vane pumps** for lower-cost medium-vacuum needs.

Your application involves **highly corrosive or abrasive gases** ensure the pump is **properly protected** (e.g., with gas ballasts or filters).

You lack **expertise in vacuum system setup** consult with a **vacuum specialist** to ensure proper installation and maintenance.

For users who prioritize **performance, speed, and reliability** in a **medium to high vacuum application**, the Varian 9698928M002 is a **strong, well-supported choice**. However, **careful planning for accessories, maintenance, and budgeting** is essential to avoid potential downsides. Always compare it with other models (e.g., Edwards, Pfeiffer, or Leybold) to ensure it meets your specific requirements.

Details:

The pump rotates perfectly and freely for over 20 seconds after a single manual spin. Multiple items in the cover photo may showcase different angles or all available stock. This item has been cleaned and handled in accordance with the manufacturers instructions. If this product is a medical device or item.

The photos show a typical example of the products condition. This long coast-down time is a direct indicator that the bearings are in good condition. Country of Origin: Italy. MPN: 9698928M002.

Unit Quantity: Please see the video. For quantity inquiries, please. Need it sooner.

Items are sold individually unless specified otherwise in the listing title. For a reduced combined shipping quote. If you are a customer in the EU or Northern Ireland. .

Varian TV 401/301 Turbo Vacuum Pump 9698928M002 300-MS Tested. Type: Vacuum. Purchasing multiple items. Please verify directly with the manufacturer.

Your satisfaction is a top priority for us. Technical Validation Performance: Verified Working Pull: The pump was functioning perfectly within the mass spectrometers vacuum system before removal.

part #: 9698928m002 prices

• $720.00-$4000.00

specifications valvplu:

• brand: Varian
• mpn: 9698928m002
• type: Vacuum
• unit type: Unit
• country of origin: Italy

offer valvplu:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: February 12, 2026
• availability: In Stock

seller valvplu:

• rating: 99.8%
• city: Naperville, Illinois
• # reviews: 1992

returns valvplu:

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

shipping valvplu:

• class: Economy
• service: Economy
• type: Fixed
• transit: 5-11 Days
• cost: $0.00

payments valvplu:

• credit card: Discover
• other
• wallet: Google-pay

general valvplu:

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

Varian 9698928M002 Is Similar To:

• 0160 Varian High Vacuum Diffusion (36.2% similar) Varian high vacuum diffusion pump with liquid nitrogen research chamber sputter coating, thermal evaporation etc. 110V plug o-rings look good...(December 1st, 2017)
• 0187 Varian Diffusion Pump 6 (33.7% similar) Per pallet charge will apply in the us Canada. Condition: new. This unit came from a working environment only what is pictured in included surplus local university. Shipping weight approx: 30 lbs. Model: brand: Varian. Most of the items are lightly used from state universities. Cosmetics: look at ...(December 24th, 2017)
• 0325-86132-302 Varian 2in Vacuum Cyrotrap (33.3% similar) Cosmetic condition: the condition of firetrap is good with some marks and scratches signs wear. Varian 2IN vacuum firetrap: this listing is for 1: functional condition: guaranteed to be fully. 1,000S of new and used business industrial assets available each month. Please through ask a question on ...(December 23rd, 2017)
• 0421p12230 Varian Rotary Vane Pump Hydrocarbon Rebuilt By Provac Sales Inc (29.6% similar) A world-wide supplier of rebuilt and new vacuum pumps, turbo pumps helium leak detectors. This includes a full line of rebuilt turbo, vane, piston, cry, scroll, blower, vacuum pumps, systems and helium leak detectors. Prozac sales, inc. P/N 0421-P1211-30 single phase, 230V, 60HZ. Vacuum pump ...(March 22nd, 2018)
• 0531f0472301 Varian Thermocouple Vacuum Gauge Tube (39.6% similar) This item ships free to all 50 states. You are buying a new old stock in original box Varian 0531-F0472-301 Thermopylae vacuum gauge tube...(January 8th, 2019)
• 0563-k2466-301 Kurt Lesker Varian Vacuum Ion Gauge Tube New In Box (29.9% similar) There is an electrical connection to it. Standard glass connection. Varian 0563-K2466-301 vacuum ion gauge tube nos in original box...(June 20th, 2018)
• 0991.p1221.321 Varian Dual Stage Rotary Vane Vacuum Pump (35.9% similar) Varian P1221 dual stage rotary vane vacuum pump parts repair this item is untested and its selling as-is for only, no return. Combined shipping: take 3 off shipping for each offer won after the first, if items are paid together. Please only bid if you understand this. Smaller items will normally ...(November 27th, 2018)
• 1055 Varian Made In The Usa High Vacuum Feed Through Electrical (35.5% similar) The manufacturers warranty is not included in this listing and may extend to buyer. Theres just one of me. Location: Y324...(July 2nd, 2018)
• 1251-1 5-8 Varian High Vacuum Valve New (34% similar) You are buying on a Varian high vacuum valve new. Surplus SAM's inc...(February 14th, 2019)
• 15-5002 Varian Syringe Pump Filter (33.7% similar) Break room cart. Sold as-is, as pictured lock. Has some cosmetic scuffs and scratches...(December 8th, 2017)
• 160mm A-o Vga160im Varian Manual Vacuum Gate Valve (32.4% similar) No software, power cords, or other accessories are included unless stated above. The unpacked weight of this item is 18 pounds. This Varian 160MM a o VGA160IM manual vacuum gate valve looks to be in good cosmetic condition, showing some signs of wear. All offered products are sold as advertised, is ...(July 10th, 2018)