LEYBOLD 91265-1 Trivac Rotary Vane Vacuum Pump Ar D16B 72260117

( Brand: Leybold ), ( Manufacturer Part Number: 91265-1 ), ( Part Type: Vacuum Pump ), ( Country Of Origin: United States )

Review LEYBOLD Trivac Rotary Vane Vacuum Pump Ar

The **Leybold 91265-1 16-25 72260 TRIVAC Rotary Vane Vacuum Pump (D16B AR 72260117)** is a high-performance, oil-sealed rotary vane vacuum pump designed for reliable and efficient gas removal in laboratory, industrial, and research applications. Part of Leybold s renowned TRIVAC series, this model combines robust engineering with precision manufacturing to deliver consistent vacuum performance across a wide range of operating conditions. The pump features a **16-inch (D16B) flange connection**, making it compatible with standard vacuum systems and allowing for seamless integration into existing setups, whether for gas analysis, freeze-drying, thin-film deposition, or other low-to-medium vacuum applications. Its **rotary vane design** ensures smooth and quiet operation while maintaining high pumping speeds, typically achieving ultimate vacuums as low as **1 x 10 mbar (0.01 Torr)** under optimal conditions, though performance may vary slightly based on inlet gas composition and system configuration.

Engineered with durability in mind, the **72260117** variant incorporates an **AR (Anti-Rotation) shaft design**, which enhances stability and reduces wear on the vanes and bearings, extending the pump s operational lifespan. The **16-25** designation refers to its nominal pumping speed range, measured in liters per minute (l/min) at atmospheric inlet pressure, though actual performance depends on the specific gas being pumped and the system s backpressure. The pump s **oil-sealed construction** provides effective gas compression and sealing, making it suitable for handling a variety of gases, including air, nitrogen, argon, and inert atmospheres, though it is not recommended for pumping corrosive or chemically reactive gases without proper filtration or additional safeguards. The **TRIVAC series** is renowned for its low maintenance requirements, with features such as a **self-lubricating vane system** and a **durable carbon steel housing** that resists deformation under thermal stress, ensuring long-term reliability even in demanding environments.

For enhanced safety and operational efficiency, the pump is equipped with **Leybold s proprietary oil management system**, which includes a **vacuum-tight oil reservoir** and a **breather valve** to prevent contamination while allowing for easy oil changes. The **D16B flange** adheres to international standards, ensuring compatibility with a broad range of vacuum chambers, manifolds, and downstream equipment. Additionally, the pump s **compact yet sturdy design** makes it ideal for applications where space is limited, while its **low vibration output** minimizes noise and mechanical stress on connected systems. Whether used in academic research, semiconductor processing, or industrial manufacturing, the **Leybold 91265-1 16-25 72260 TRIVAC Rotary Vane Vacuum Pump** delivers a dependable balance of performance, longevity, and ease of maintenance, making it a trusted choice for professionals requiring consistent vacuum performance in their workflows.

### **Pros and Cons of buying a Leybold 91265-1 16-25 72260 TRIVAC Rotary Vane Vacuum Pump (D16B AR 72260117)**

#### **Pros**

1. **Reliability and Durability** Leybold is a well-established brand known for high-quality vacuum pumps, particularly in industrial and laboratory settings. This model is designed for long-term use with robust construction.

2. **Wide Pressure Range** The pump operates effectively in the range of **16 25 m /h (16 25 liters/sec)** and can achieve final pressures as low as **10 mbar**, making it suitable for applications requiring moderate to high vacuum levels.

- **Laboratory settings** (e.g., freeze-drying, thin-film deposition, chemical processing)

- **Industrial processes** (e.g., vacuum furnaces, packaging, degassing)

- **Research and development** (e.g., semiconductor manufacturing, material science)

4. **Oil-Lubricated Design** The rotary vane mechanism is lubricated by oil, which helps reduce wear and tear, extending the pump s lifespan compared to dry pumps.

5. **Compatibility with Leybold Systems** If you already have other Leybold components (e.g., controllers, valves, or vacuum chambers), this pump integrates seamlessly into existing setups.

6. **After-Sales Support & Spare Parts Availability** Leybold has a global support network, making maintenance and part replacements easier than with lesser-known brands.

7. **Moderate Energy Efficiency** While not the most energy-efficient pump on the market, it operates within reasonable power consumption for its capacity (typically ** 1 2 kW**).

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#### **Cons**

1. **High Initial Cost** Leybold pumps are premium-priced, often **2 3 times more expensive** than generic or aftermarket alternatives. The full model (91265-1) with accessories (e.g., oil, filters, mounting kit) can cost **$3,000 $6,000 **, depending on region and supplier.

2. **Oil Maintenance Requirements** Unlike dry pumps, this model requires **regular oil changes (every 1,000 2,000 hours)** and monitoring for contamination. Poor maintenance can lead to reduced performance or pump failure.

3. **Noise and Vibration** Rotary vane pumps can generate **moderate to high noise levels (typically 60 75 dB)** and some vibration, which may require additional soundproofing or mounting solutions in sensitive environments.

4. **Limited Final Vacuum** While capable of **10 mbar**, it is not suitable for **ultra-high vacuum (UHV) or high-vacuum (HV) applications below 10 mbar**. For such needs, a diffusion pump or turbomolecular pump would be required.

5. **Size and Installation Space** The pump is **bulky (D16B model is 30 cm in diameter and 50 cm tall)** and requires proper ventilation and space for oil cooling. Installation may require additional plumbing for oil and gas lines.

6. **Potential for Oil Contamination** If not properly maintained, oil can degrade or mix with process gases, leading to **cross-contamination** in sensitive applications (e.g., semiconductor manufacturing).

7. **Depreciation Over Time** Like most industrial equipment, vacuum pumps lose value quickly. If you plan to sell it later, resale value may not justify the initial investment unless it remains in excellent condition.

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### **Conclusion**

The **Leybold 91265-1 TRIVAC D16B AR** is a **high-quality, reliable vacuum pump** ideal for **laboratory, industrial, and research applications** where **moderate to high vacuum (10 mbar) is required**. Its **durability, compatibility with Leybold systems, and strong after-sales support** make it a **premium choice** for users who prioritize **long-term performance and brand reputation**.

However, the **high upfront cost, maintenance demands (oil changes, noise, vibration), and limited suitability for ultra-high vacuum** may make it **overkill for basic or low-budget applications**. If your budget is tight or you need **lower noise/dry operation**, alternatives like **Edwards, Busch, or smaller Leybold models** (e.g., D10B) might be more cost-effective.

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### **Recommendation**

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

You already have **Leybold-compatible systems** and want seamless integration.

You can **budget for maintenance (oil, filters, occasional repairs)** and **accept moderate noise/vibration**.

Your application **does not require ultra-high vacuum (below 10 mbar)**.

You need **ultra-high vacuum (UHV) or dry operation** (e.g., turbomolecular or scroll pumps).

Your budget is **limited** look for **used/refurbished Leybold pumps** or **lower-cost brands** (e.g., Edwards RV series).

Noise and vibration are **critical concerns** explore **silent or dry pump options**.

You require **portable or compact solutions** smaller rotary vane pumps (e.g., D6B) may suffice.

For **serious users who value **brand reliability and long-term performance**, the Leybold 91265-1 is a **strong investment**. For **budget-conscious or specialized applications**, a **different model or brand** may be more appropriate. Always **compare new vs. used options** and **check for refurbished units** to optimize cost.

Details:

In order to give you the lowest possible rate, we combine shipping charges on multiple orders. INCLUDES LEYBOLD EXHAUST FILTER AR 16-25. LEYBOLD TRIVAC ROTARY VANE VACUUM PUMP D16B 91265-1. MARATHON 72260117.

part #: 912651 prices

• $1465.35-$3500.00

specifications valvplu:

• brand: Leybold
• mpn: 91265-1
• part type: Vacuum Pump
• country of origin: United States

seller valvplu:

• rating: 100.0%
• city: Lake Forest, California
• # reviews: 23014

payments valvplu:

• credit card: Mastercard
• other
• wallet: Paypal

offer valvplu:

• best offers: True
• quantity: 3
• started: April 29, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0

general valvplu:

• condition: Used
• Pumps Pump Accessories > Vacuum Pumps > Rotary Vane Pumps

returns valvplu:

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

shipping valvplu:

• class: Economy
• cost: $275.00
• transit: 3-9 Days
• type: Fixed
• service: Economy

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