ULVAC GHD-031B Rotary Vanevacuum Pump Dn 36L/MIN 16KF 200-240V 50/60 1PH

( Brand: Ulvac ), ( Manufacturer Part Number: GHD-031B ), ( Part Type: Pump Min )

Review ULVAC Rotary Vanevacuum Pump 36l/min Dn 200-240v 50/60 Hz 1ph

The **ULVAC GHD-031B Rotary Vane Vacuum Pump** is a high-performance, compact, and versatile solution designed to deliver reliable and precise vacuum performance for a wide range of laboratory, industrial, and research applications. Engineered with precision and durability in mind, this pump operates on a robust **rotary vane mechanism**, ensuring smooth, consistent, and efficient air displacement while maintaining low noise levels for a quieter workspace. With a **36 L/min (liters per minute) pumping speed**, the GHD-031B excels in applications requiring moderate to light vacuum demands, such as freeze-drying, degassing, filtration systems, and small-scale vacuum chambers. Its **DN16 KF flange connection** (KF25 compatible with adapters) provides a standardized, leak-tight interface, making it compatible with a variety of vacuum systems, glassware, and industrial setups without compromising on performance.

Powered by a **universal voltage input of 200 240V, 50/60Hz**, this pump is designed for global usability, ensuring seamless operation in laboratories, research facilities, or production environments regardless of regional electrical standards. The **single-phase (1PH) motor** drives the pump with efficiency, minimizing energy consumption while maximizing output, making it an economical choice for continuous or intermittent use. The GHD-031B is built with **high-quality materials**, including corrosion-resistant coatings and precision-engineered vanes, which extend the pump s lifespan and reduce maintenance requirements. Its compact yet sturdy design allows for easy integration into tight spaces, whether mounted on a bench, embedded in a system, or placed in a dedicated vacuum station.

Safety and reliability are paramount in vacuum applications, and the GHD-031B incorporates **overload protection and thermal safeguards** to prevent damage from overheating or excessive strain. The pump s **oil-sealed rotary vane design** ensures consistent vacuum levels while minimizing wear, making it ideal for applications where stability and longevity are critical. Additionally, its **low vibration output** contributes to quieter operation, reducing noise pollution in sensitive environments. Whether used for **chemical analysis, material science experiments, or industrial processing**, this vacuum pump delivers dependable performance with minimal upkeep, making it a cost-effective and efficient addition to any vacuum-dependent workflow. Built to meet stringent quality standards, the ULVAC GHD-031B is a trusted workhorse for professionals who demand precision, durability, and reliability in their vacuum systems.

### **Pros and Cons of buying a ULVAC GHD-031B Rotary Vane Vacuum Pump (36 L/min, DN16, 200-240V, 50/60Hz, 1-Phase)**

#### **Pros**

1. **High Vacuum Performance**

The GHD-031B is a rotary vane pump designed to achieve moderate to high vacuum levels, making it suitable for applications requiring pressures down to approximately **10 mbar** (depending on system setup). This is useful for processes like degassing, filtration, or preliminary vacuum stages in larger systems.

2. **Compact and Portable Design**

With a **36 L/min pumping speed**, it is relatively compact for its capacity, making it easier to integrate into smaller setups or benchtop applications. The **DN16 flange** allows for flexible connection options.

3. **Wide Voltage Compatibility**

The pump operates on **200-240V, 50/60Hz**, meaning it can be used in most standard electrical environments without requiring special adapters (unlike some single-voltage pumps).

4. **Reliable Oil-Sealed Rotary Vane Mechanism**

Rotary vane pumps are known for their durability and consistent performance over time, especially when properly maintained. The oil lubrication helps reduce wear on internal components.

5. **Low Maintenance (Compared to Other Types)**

While all vacuum pumps require periodic oil changes and filter replacements, rotary vane pumps generally have fewer moving parts than diaphragm or scroll pumps, leading to longer service intervals.

6. **Cost-Effective for Moderate Vacuum Needs**

For applications where ultra-high vacuum (UHV) is unnecessary, this pump offers a balance between performance and price, making it a practical choice for labs, industrial processes, or research setups.

7. **Compatibility with Common Gases**

It can handle a variety of gases (including air, nitrogen, and inert gases) without severe degradation, though it may not be ideal for highly corrosive or reactive substances without additional safeguards.

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#### **Cons**

1. **Oil Contamination Risk**

As an oil-lubricated pump, it introduces **oil vapors into the system**, which can contaminate sensitive applications (e.g., semiconductor processing, pharmaceutical manufacturing, or certain chemical experiments). This requires additional trapping systems (like cold traps or dry pumps) in many cases.

2. **Limited Ultimate Vacuum**

While it can reach ** 10 mbar**, it is not suitable for **ultra-high vacuum (UHV) or high-vacuum (HV) applications** requiring pressures below **10 mbar**. For such needs, diffusion pumps, turbomolecular pumps, or cryopumps would be more appropriate.

3. **Noise and Vibration**

Rotary vane pumps can generate **moderate to high noise levels (typically 60-75 dB)** and some vibration, which may be problematic in quiet environments or precision-sensitive applications.

4. **Oil Maintenance Requirements**

The pump requires **regular oil changes (every 1,000 2,000 hours of use, depending on conditions)** to prevent degradation of performance and potential damage. Neglecting this can lead to reduced efficiency or pump failure.

5. **Sensitivity to Backstreaming Gases**

If the downstream system leaks or has poor sealing, gases can **backstream into the pump**, contaminating the oil and reducing lifespan. This makes proper system design and leak testing essential.

6. **Not Ideal for High-Purity or Cleanroom Environments**

Due to oil contamination risks, it is **not recommended for applications requiring ultra-clean conditions**, such as certain medical or semiconductor manufacturing processes.

7. **Single-Phase Power Limitation**

While the **1-phase (200-240V) design is convenient**, it means the pump cannot be used in **3-phase industrial settings without an adapter**, which may add complexity in some facilities.

8. **Warranty and Support Dependence on ULVAC**

ULVAC is a reputable brand, but **warranty coverage and local service support may vary by region**. Some users in non-core markets might face challenges with repairs or spare parts availability.

---

### **Conclusion**

The **ULVAC GHD-031B** is a **versatile, mid-range rotary vane vacuum pump** well-suited for applications requiring **moderate vacuum levels (down to 10 mbar)** where oil contamination is tolerable or can be mitigated. It excels in **cost-effectiveness, reliability, and ease of use** for general lab, industrial, or research purposes where ultra-high vacuum is not required.

However, it is **not ideal for ultra-clean, high-vacuum, or oil-free environments**. Users must account for **oil maintenance, noise, and potential backstreaming risks**. If the application demands **higher purity, lower pressures, or oil-free operation**, alternative pumps (such as dry pumps, turbomolecular pumps, or scroll pumps) should be considered.

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### **Recommendation**

- You need a **reliable, mid-vacuum pump** for general degassing, filtration, or preliminary vacuum stages.

- Oil contamination is **acceptable or can be managed** (e.g., with proper trapping systems).

- Your setup requires **200-240V single-phase power** and a **compact DN16 connection**.

- Budget constraints make it a **cost-effective alternative** to higher-end pumps.

- You require **ultra-high vacuum (below 10 mbar)** or **oil-free operation**.

- Your application is **highly sensitive to oil contamination** (e.g., semiconductor fabrication, pharmaceutical processing).

- Noise or vibration is a **critical concern** in your workspace.

- You need **long-term low-maintenance operation** without regular oil changes.

- For **higher vacuum needs**: ULVAC s **turbo molecular pumps** (e.g., GTH series) or **dry pumps** (e.g., scroll pumps).

- For **oil-free operation**: Dry screw or claw pumps (e.g., from Edwards, Leybold, or Busch).

- For **budget-friendly options**: Entry-level rotary vane pumps from **Welch, Alcatel, or smaller brands** (if ULVAC s price is prohibitive).

Ultimately, the GHD-031B is a **solid choice for its intended use**, but careful consideration of your specific vacuum requirements is essential before purchase.

Details:

This powerful little pump measures only 11 L x 4.5 W 6/ 120 W mm 288.5 L 163. Manuals, cables, power cords, software, drivers, accessories, etc are not included unless pictured or noted in the. Clean, fully working and excellent condition ULVAC model GHD-031B Rotary Vane Vacuum Pump, DN 16KF, 200-240 V, 50/60 Hz, 1Phase. Pulls 36L/min at 60Hz 30L/min 50Hz.

Ulvac GHD-031B Rotary VaneVacuum Pump; 36L/min DN 16KF, 200-240V, 50/60 Hz 1Ph.

part #: ghd031b prices

• $499.00-$2111.80

specifications valvplu:

• brand: Ulvac
• mpn: Ghd-031b
• part type: Pump Min

payments valvplu:

• cash
• other
• credit card: Diners-club
• wallet: Apple-pay

offer valvplu:

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

shipping valvplu:

• class: Standard
• cost: $57.72
• service: UPS Ground
• transit: 3-7 Days
• carrier: UPS
• type: Calculated

returns valvplu:

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

seller valvplu:

• # reviews: 1072
• city: San Diego, California
• rating: 100.0%

general valvplu:

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

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