TRAVAINI 50-420-C-RA Trhb Ring Vacuum Pump Baldor 50-420/C/RA 20HP 460V 3PH

( Brand: Travaini ), ( Manufacturer Part Number: 50-420/C/RA ), ( Part Type: Ring Vacuum Pump ), ( Inlet Diameter: 2 In ), ( Maximum Flow Rate: 310 Cfm ), ( Rated Power: 20 Hp ), ( Number Of Stages: Two Stage ), ( Country Of Origin: Italy )

Review TRAVAINI 50-420/c/ra Trhb Two stage Liquid Ring Vacuum Pump 20hp Baldor 460v 3ph

The **Traviani 50-420/C/RA TRHB Two-Stage Ring Vacuum Pump**, powered by a **20 HP Baldor electric motor** rated for **460V, 3-phase** operation, represents a robust and high-performance solution for demanding industrial vacuum applications requiring precise control, reliability, and efficiency. Engineered with Italian precision, this two-stage ring vacuum pump is designed to deliver exceptional suction capabilities while maintaining low operating costs and minimal maintenance requirements. The **50-420/C/RA** model features a **TRHB (Traviani Ring Balanced Hydraulic) design**, which optimizes oil circulation and minimizes wear on critical components, ensuring extended service life and consistent performance even under heavy-duty conditions. With a **two-stage compression system**, this pump achieves ultra-low ultimate vacuum levels, making it ideal for applications such as freeze drying, chemical processing, semiconductor manufacturing, food dehydration, and vacuum distillation. The **Baldor 20 HP motor**, a trusted name in industrial drives, provides robust torque and energy efficiency, reducing power consumption while delivering consistent power output across varying loads. The pump s **oil-sealed design** ensures reliable sealing and efficient heat dissipation, preventing oil degradation and maintaining optimal operating temperatures. Additionally, Traviani s **RA (Ring Adjusted) technology** allows for precise gap control between the piston rings and cylinder, reducing friction and improving energy efficiency. This pump is built with **high-grade cast iron components** and **precision-machined parts** to withstand the rigors of continuous operation, while its **compact yet sturdy construction** allows for easy integration into existing production lines. Whether used in pharmaceutical, food processing, or industrial vacuum systems, the **Traviani 50-420/C/RA TRHB** delivers unmatched performance, durability, and operational reliability, making it a premium choice for engineers and plant managers seeking a dependable vacuum solution.

### **Pros and Cons of buying a Travaini 50-420/C/RA TRHB Two-Stage Ring Vacuum Pump (20HP, Baldor 460V, 3-Phase)**

#### **Pros**

1. **High Performance and Efficiency**

- The two-stage ring vacuum pump is designed for high vacuum applications, making it suitable for processes requiring deep vacuum levels (down to ultra-high vacuum in some configurations).

- The Baldor motor (20HP, 460V, 3-phase) is a reputable brand known for reliability and efficiency, reducing energy consumption compared to older or lower-quality motors.

2. **Versatility in Industrial Applications**

- Ideal for industries such as chemical processing, semiconductor manufacturing, food packaging (evacuation), freeze drying, and vacuum furnaces.

- The TRHB series is often used in applications requiring oil-sealed or dry-running configurations, depending on the model variant.

3. **Durability and Longevity**

- Travaini is a well-established manufacturer specializing in vacuum technology, known for robust construction and long service life.

- The two-stage design provides better stability and lower noise levels compared to single-stage pumps for demanding applications.

4. **Compatibility with Baldor Motors**

- The Baldor 20HP motor is a high-quality, industrial-grade component with good thermal protection and efficiency, reducing maintenance needs.

- The 460V, 3-phase setup ensures compatibility with standard industrial power supplies in most facilities.

5. **Oil-Sealed Design (Assuming Standard Configuration)**

- Oil-sealed pumps generally offer better sealing and longer life for gases with particulates or moisture, though this depends on the specific model variant (some Travaini pumps offer dry-running options).

6. **After-Sales Support and Spare Parts Availability**

- Travaini has a global distribution network, making spare parts and maintenance services accessible.

- Baldor motors are widely supported, with easy availability of replacement parts.

---

#### **Cons**

1. **High Initial Cost**

- Two-stage vacuum pumps, especially with a 20HP Baldor motor, are significantly more expensive than single-stage or smaller-capacity pumps.

- The upfront investment may be a barrier for small businesses or startups with limited budgets.

2. **Maintenance Requirements**

- Oil-sealed pumps require regular oil changes, filter replacements, and monitoring for contamination, which adds to operational costs.

- The Baldor motor, while reliable, may still require periodic servicing (bearing lubrication, electrical checks) to maintain efficiency.

3. **Energy Consumption**

- A 20HP motor consumes substantial power, increasing electricity costs over time. While Baldor motors are efficient, the operational expense can be notable in continuous-use applications.

4. **Space and Installation Constraints**

- Two-stage pumps are bulkier than smaller units, requiring adequate space for installation and ventilation.

- Proper foundation and alignment are necessary to prevent vibration and ensure longevity, which may add to installation complexity.

5. **Potential for Oil Contamination in Process Gases**

- If the pump is oil-sealed, there is a risk of oil vapor or droplets entering the process gas stream, which may be unacceptable in sensitive applications (e.g., semiconductor manufacturing or pharmaceuticals). Some Travaini models offer dry-running alternatives, but these may have different performance characteristics.

6. **Noise and Vibration**

- Larger pumps, even with dampening systems, can generate noticeable noise and vibration, requiring soundproofing or isolation in some environments.

7. **Depreciation and Resale Value**

- High-end vacuum pumps, while durable, may depreciate over time, especially if newer, more efficient models become available.

---

### **Conclusion**

The **Travaini 50-420/C/RA TRHB two-stage ring vacuum pump with a 20HP Baldor 460V, 3-phase motor** is a **high-performance, reliable, and durable** solution for industries requiring deep vacuum levels and consistent operation. Its strengths lie in **efficiency, versatility, and compatibility with industrial standards**, making it suitable for chemical processing, manufacturing, and specialized applications.

However, the **high cost, maintenance needs, and energy consumption** are significant drawbacks, particularly for smaller operations or applications where lower vacuum levels would suffice. If **oil contamination is a concern**, alternative dry-running models should be considered, though these may trade off some performance or lifespan.

### **Recommendation**

- Your application demands **deep vacuum levels** (e.g., freeze drying, chemical processing, or vacuum furnaces).

- You require **long-term reliability** and can justify the **higher upfront cost** with operational efficiency gains.

- Your facility has **adequate space, power supply (460V, 3-phase), and maintenance resources** to support the pump.

- Oil-sealed operation is acceptable, or you can integrate **oil-free alternatives** if needed.

- Your budget is limited, and a **single-stage pump or a smaller capacity model** would meet your needs.

- The application is **sensitive to oil contamination**, and a **dry-running pump** (e.g., scroll or claw-type) is a better fit.

- Energy costs are a major concern, and a **variable-speed drive (VSD) or energy-efficient motor** could reduce operational expenses.

For **optimal value**, compare this pump with **other brands (e.g., Leybold, Edwards, Busch)** and assess whether **rental or leasing** options are viable for short-term needs. If maintenance is a concern, factor in **contract service agreements** with Travaini or Baldor to ensure long-term reliability.

Details:

Just remember you are covered with a money back guarantee on most items. If you do not see an accessory in the pictures and it is specifically listed as included condition or listing. Buyer should inspect or have inspected prior to use in critical applications. Motor appears intact with legible nameplate.

If you would like to request a different or an actual photo of item are interested in, please submit before buying. Cosmetic wear consistent with industrial use: surface oxidation, paint wear, minor rust on piping. Casting Promo Milan, Italy. SHIPPING:This is a heavy item pump, motor, and base assembly.

Some minor repairs may be performed. Number of Stages: Type: Liquid Ring Vacuum Pump. Note that stock photos are often used and not the exact item being sold.

APPLICATIONS: Central vacuum systems, DE-aeration, distillation, drying filtration, solvent recovery, boiling processes, condensing, impregnation, sterilization. Data Privacy. The value of an item greatly contributes to the amount or effort put into testing. Distributor: Travaini Pumps USA, Yorktown, VA.

Construction: Cast iron RA. Condition: Used. Shaft Support: Bilateral, externally located grease-lubricated bearings. MOTOR SPECIFICATIONS: Manufacturer: Baldor Electric Co.

Power: 20 HP. Country of Manufacture: Italy. Paint chips are sometimes but not always repaired. NEMA Code:.

Condition: Removed from working service pump was operational at time of removal. Used items are cleaned, clear plastics hand polished to reduce visible scuffs or scratches. Line: Super-E Super-Efficient Industrial Motor. ZOMBIE COMPONENTS Travaini TRHB 50-420/C/RA Two-Stage Liquid Ring Vacuum Pump 20HPBaldor 460V 3PH Item Specifics: Brand: / .

Appliance parts. Shaft Seal: Mechanical seal C designation. Type: Two-stage liquid ring vacuum pump. Insulation Class:.

Lime and rust deposits are removed to the best of our ability. PUMP SPECIFICATIONS: Manufacturer: .p.A. MPN: TRHB 50-420/C/RA. It just isn't possible to test many low value items due the time required and expenses associated with it.

Pump body, flanges, and mechanical connections appear complete. Enclosure: TEFC.

part #: 50420c prices

• $6499.99-$26995.00

specifications valvplu:

• brand: Travaini
• mpn: 50-420/c/ra
• part type: Ring Vacuum Pump
• inlet diameter: 2 In
• maximum flow rate: 310 Cfm
• rated power: 20 Hp
• number of stages: Two Stage
• country of origin: Italy

general valvplu:

• condition: Used
• Pumps Pump Accessories > Vacuum Pumps > Liquid Ring Pumps

payments valvplu:

• credit card: Mastercard
• cash
• wallet: Paypal
• other

seller valvplu:

• rating: 100.0%
• # reviews: 3461
• city: Sylmar, California

offer valvplu:

• best offers: True
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: March 17, 2026
• quantity: 1

shipping valvplu:

returns valvplu:

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

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