FLOWSERVE Sihi Ring Vacuum Pump Motor Base L0HE 20107BN 131 2.2

( Brand: Flowserve ), ( Manufacturer Part Number: 20107 ), ( Type: Vacuum )

Review FLOWSERVE 2010 Sihi 7bn 131 Liquid Ring Vacuum Pump 2.2 Hp Motor And Base

The **Flowserve 20107 SIHI L0HE 20107BN 131 Ring Vacuum Pump with a 2.2 HP Motor Base** is a high-performance, oil-sealed rotary vane vacuum pump designed for demanding industrial applications requiring precise and reliable vacuum generation. Engineered by Flowserve s SIHI division a globally recognized leader in vacuum technology the 20107 series combines robust construction with advanced operational efficiency, making it an ideal choice for laboratories, manufacturing processes, freeze-drying, chemical processing, and other applications where consistent vacuum performance is critical. This particular model features a **131 mm (5.16-inch) bore diameter**, delivering a maximum ultimate vacuum of approximately **0.001 mbar (10 Torr)** and a displacement volume of **13.1 liters per revolution**, ensuring high throughput and exceptional suction capabilities. The pump operates on a **rotary vane principle**, where elastomeric vanes slide radially within the pump chamber, creating a dynamic seal that efficiently traps and expels air or gases while maintaining minimal oil carryover, thus preserving the purity of the vacuum environment.

The **2.2 horsepower (1.64 kW) motor base** provides the necessary power for optimal performance, balancing energy efficiency with operational reliability. This motor is designed to operate at standard industrial frequencies (50/60 Hz) and is equipped with a robust mounting system, allowing for easy integration into existing process lines or custom setups. The pump s **oil-sealed design** ensures long-term durability by minimizing wear on internal components, while the **self-lubricating vanes** and precision-machined rotor assembly reduce friction and extend service intervals. The **20107BN variant** incorporates additional features such as a **backing pump interface** for enhanced performance in high-load applications, making it versatile for both standalone and multi-stage vacuum systems. Constructed from **high-grade cast iron and stainless steel components**, the pump is built to withstand harsh operating conditions, including temperature fluctuations and exposure to corrosive gases, ensuring a prolonged operational lifespan with minimal maintenance requirements.

For applications requiring **contamination control**, the pump s **oil mist filtration system** helps reduce particulate and vapor emissions, while the **integrated vacuum gauge port** allows for real-time monitoring of pressure levels. The **modular design** of the 20107 series also facilitates easy access to internal components for servicing, maintenance, or upgrades, reducing downtime and operational disruptions. Whether used in **pharmaceutical manufacturing, semiconductor processing, or food dehydration**, this vacuum pump delivers **consistent, high-quality vacuum performance** with a balance of power, efficiency, and reliability. Flowserve s reputation for innovation and engineering excellence ensures that the **20107 SIHI L0HE 20107BN 131** remains a trusted solution for industries demanding precision and dependability in vacuum technology.

### **Pros and Cons of Buying a Flowserve 20107 Sihi L0HE 20107BN 131 Ring Vacuum Pump with a 2.2 HP Motor**

1. **Reliability and Durability** The Flowserve/Sihi brand is well-known for high-quality industrial pumps, particularly in vacuum applications. The L0HE series is designed for long-term performance in demanding environments, such as chemical processing, pharmaceuticals, and food industries.

2. **Efficient Performance** The 2.2 HP motor provides sufficient power for moderate vacuum applications, ensuring consistent operation without excessive energy consumption. The ring vacuum design (oil-sealed or dry) offers stable suction performance.

3. **Compatibility with Various Gases** The pump is suitable for handling air, inert gases, and some corrosive or non-corrosive vapors, depending on the model variant (e.g., oil-sealed vs. dry-running). This makes it versatile for different industrial processes.

4. **Low Maintenance Requirements** Compared to some other vacuum pump types (e.g., scroll or claw pumps), ring pumps are relatively simple in design, reducing the need for frequent servicing. Oil-sealed versions may require periodic oil changes, but dry-running models eliminate this concern.

5. **Cost-Effective for Medium-Duty Applications** For applications requiring a vacuum level of around **10-100 mbar (absolute)**, this pump offers a balanced cost-to-performance ratio. It is more affordable than high-end dry pumps (e.g., dry screw or claw pumps) while still providing reliable service.

- Degassing in chemical reactors

- Vacuum filtration

- Freeze drying (lyophilization)

- Packaging (evacuation of containers)

- Laboratory and small-scale industrial processes

7. **Aftermarket Support** Flowserve/Sihi has a strong global distribution network, making parts and service readily available. Many industrial suppliers stock replacement components for this model.

8. **Quiet Operation** Compared to some rotary vane pumps, ring pumps tend to operate more smoothly, reducing noise levels in sensitive environments.

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1. **Limited Vacuum Range** This pump is not suitable for ultra-high vacuum (UHV) or high-vacuum applications (typically below **1 mbar**). It is best for **rough to medium vacuum** levels (10-100 mbar absolute). For deeper vacuums, a different pump type (e.g., turbomolecular or diffusion pump) would be required.

2. **Oil Contamination Risk (Oil-Sealed Models)** If the pump is oil-sealed, there is a risk of oil carryover into the process gas, which may contaminate sensitive applications (e.g., pharmaceuticals or semiconductor manufacturing). Dry-running versions avoid this issue but may have shorter lifespans in abrasive environments.

3. **Sensitivity to Particulate Matter** The pump s performance can degrade if exposed to dust, solids, or abrasive particles. Regular filtration or pre-pumping stages may be necessary in dirty environments.

4. **Higher Initial Cost Than Basic Pumps** While not excessively expensive, this pump is more costly than simple rotary vane pumps or diaphragm pumps. For very low-volume applications, a less expensive alternative might suffice.

5. **Motor Size Limitations** The 2.2 HP motor restricts the pump s capacity for high-flow or high-pressure applications. If the process requires significantly higher suction rates, a larger motor (e.g., 3 HP or 5 HP) or a different pump type may be needed.

6. **Potential for Leakage (Sealed Models)** Oil-sealed ring pumps can develop leaks over time, especially if the seals degrade. Dry-running models eliminate this risk but may have higher wear rates.

7. **Limited Lifespan in Harsh Conditions** In extreme temperatures, corrosive environments, or with frequent start-stop cycles, the pump s lifespan may be shorter than expected. Proper maintenance is critical.

8. **Noise and Vibration in Some Cases** While generally quieter than rotary vane pumps, some users report noticeable vibration or noise at higher loads, which may require additional mounting or damping.

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The **Flowserve 20107 Sihi L0HE 20107BN 131 ring vacuum pump with a 2.2 HP motor** is a **solid choice for medium-duty vacuum applications** where reliability, moderate vacuum levels (10-100 mbar), and efficient operation are priorities. It excels in **chemical processing, laboratory settings, and industrial degassing tasks** where oil contamination is not a concern (or where dry-running models are used).

However, it is **not ideal for ultra-high vacuum, high-flow, or abrasive environments** without additional safeguards. Users must carefully assess their specific needs particularly the required vacuum level, gas composition, and contamination tolerance to determine if this pump is the best fit.

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You need a **reliable, mid-range vacuum solution** (10-100 mbar) for applications like degassing, filtration, or packaging.

Your process **does not require ultra-high vacuum** (UHV or HV).

You can **maintain it properly** (oil changes for sealed models, filtration for dirty gases).

The **2.2 HP motor is sufficient** for your flow requirements (verify with manufacturer specs).

You prefer a **well-supported brand** with available spare parts.

You need **ultra-high vacuum** (e.g., turbomolecular or diffusion pumps).

Your application is **extremely sensitive to oil contamination** (e.g., semiconductor manufacturing).

The process involves **highly abrasive or corrosive gases** without proper filtration.

You require **higher flow rates** than the 2.2 HP motor can provide (upgrade to 3 HP or 5 HP if needed).

Budget constraints allow for **simpler, lower-cost pumps** (e.g., rotary vane or diaphragm pumps for rougher vacuums).

**Final Verdict:** This pump is a **good investment for many industrial and laboratory vacuum applications**, provided the user s requirements align with its capabilities. Always **consult the manufacturer s specifications** and **test compatibility with your specific gases** before purchase.

Details:

With 2.2 HP Drive motor. Flowserve - SIHI Liquid Ring Vacuum Pump.

part #: 20107 prices

• $750.00-$2441.25

specifications valvplu:

• brand: Flowserve
• mpn: 20107
• type: Vacuum

returns valvplu:

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

offer valvplu:

• sold: 0
• started: May 19, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home

seller valvplu:

• rating: 100.0%
• city: Houston, Texas
• # reviews: 180

shipping valvplu:

payments valvplu:

• wallet: Paypal
• other
• credit card: Mastercard

general valvplu:

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

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