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LEYBOLD 85519 Burkert Vacuum Purge Gas Valve 151171

151171 Leybold 85519 Burkert Vacuum Purge Gas Valve /

( Brand: Leybold ), ( Manufacturer Part Number: 85519 ), ( Part Type: Vacuum Valve ), ( Country Of Origin: Germany )

Review LEYBOLD Burkert Vacuum Purge Gas Valve

The **Leybold 85519 Burkert Vacuum Purge Gas Valve (Part Number 151171)** is a high-performance, precision-engineered component designed for critical applications in vacuum systems where reliable gas control and leak-free operation are essential. This valve is part of Leybold s robust line of vacuum technology solutions, combining the durability and reliability of Burkert s renowned flow control expertise with the precision and efficiency synonymous with Leybold s vacuum systems. Built with a robust stainless steel body and a robust sealing mechanism, the valve is engineered to withstand the demanding conditions of industrial, laboratory, or semiconductor manufacturing environments, where consistent gas purging and leak prevention are critical to maintaining vacuum integrity.

The **151171** model features a **normally closed (NC) pilot-operated design**, ensuring that gas flow is strictly controlled and only activated when a pilot signal is applied, minimizing unintended leaks and enhancing system safety. Its compact yet sturdy construction allows for seamless integration into existing vacuum setups, whether in research laboratories, cleanroom environments, or high-throughput manufacturing processes. The valve operates on a **direct-acting principle**, providing rapid response times and precise modulation of gas flow, which is particularly advantageous in applications requiring fine-tuned control over purge cycles such as in plasma etching, thin-film deposition, or vacuum drying processes.

One of the standout features of this valve is its **hermetically sealed internal mechanism**, which eliminates the risk of contamination from external particles or moisture, a critical consideration in applications where purity and cleanliness are paramount. The valve s **metal-seated design** ensures long-term reliability, reducing the likelihood of wear or failure over extended periods of use, while its **low outgassing characteristics** make it ideal for ultra-high-vacuum (UHV) and high-vacuum (HV) applications where residual gas contamination could compromise process outcomes. Additionally, the valve is equipped with a **fail-safe mechanism**, ensuring that in the event of a power or signal failure, the valve defaults to a closed position, thereby protecting downstream components from unintended gas ingress.

The **151171** is compatible with a wide range of gases, including inert gases like nitrogen, argon, or helium, as well as reactive gases under controlled conditions, making it versatile for diverse applications. Its **adjustable flow rate settings** allow operators to fine-tune purge cycles to match specific process requirements, whether for rapid evacuation, controlled atmosphere maintenance, or precise gas mixing. The valve s **modular design** also facilitates easy installation and maintenance, with straightforward access to internal components for servicing or replacement, minimizing downtime in critical operations.

Whether deployed in semiconductor fabrication, pharmaceutical manufacturing, or advanced materials research, the **Leybold 85519 Burkert Vacuum Purge Gas Valve (151171)** delivers a dependable solution for maintaining optimal vacuum conditions through precise gas control. Its combination of **high reliability, leak-tight performance, and adaptability** makes it an indispensable component for engineers and technicians seeking to enhance the efficiency and precision of their vacuum systems.

### **Pros and Cons of buying a Leybold 85519 Burkert Vacuum Purge Gas Valve (151171)**

#### **Pros:**

1. **High-Quality Construction** Leybold is a well-established manufacturer in vacuum technology, known for durable and reliable components. This valve is designed for precision applications, ensuring long-term performance in controlled environments.

2. **Compatibility with Vacuum Systems** The valve is specifically engineered for use in vacuum purge applications, making it suitable for processes requiring precise gas flow control, such as semiconductor manufacturing, laboratory equipment, or industrial vacuum systems.

3. **Precision Control** Burkert valves are known for their tight shut-off capabilities and consistent flow regulation, which is critical in applications where contamination or leakage must be minimized.

4. **Compatibility with Common Gases** The valve is designed to handle various gases (e.g., nitrogen, argon, hydrogen) without cross-contamination, making it versatile for different industrial and research applications.

5. **Easy Integration** It is designed to fit seamlessly into existing vacuum systems, often requiring minimal additional modifications or adapters.

6. **Maintenance-Friendly** Burkert valves are generally easy to service, with replaceable seals and straightforward maintenance procedures, reducing downtime.

7. **Brand Reputation** Leybold and Burkert are trusted names in vacuum and fluid control, which can provide confidence in the product s reliability and after-sales support.

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#### **Cons:**

1. **High Cost** As a specialized industrial component, this valve is likely more expensive than generic or off-brand alternatives. The price may be a significant investment, especially for small-scale or budget-conscious operations.

2. **Potential Overkill for Simple Applications** If the application does not require ultra-high precision or extreme durability, a less expensive valve (e.g., from a different manufacturer) might suffice without sacrificing performance.

3. **Limited Availability of Parts** While Leybold/Burkert parts are reliable, finding replacement seals or components may be challenging compared to more widely used brands, potentially increasing long-term maintenance costs.

4. **Compatibility Issues with Non-Standard Systems** If the existing vacuum system uses non-standard fittings or pressure ranges, additional adapters or modifications may be required, adding complexity and cost.

5. **Learning Curve for Installation** Proper installation and calibration of precision valves can be technical, requiring expertise to avoid leaks or operational errors. Improper setup could lead to system inefficiencies or failures.

6. **Potential for Counterfeit Products** Purchasing from unverified sellers (e.g., unlicensed online marketplaces) risks receiving counterfeit or refurbished products that may not meet specifications, leading to performance issues.

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### **Ending Conclusion:**

The **Leybold 85519 Burkert Vacuum Purge Gas Valve (151171)** is a high-quality, reliable choice for applications demanding precision gas control in vacuum systems. Its durability, compatibility, and brand reputation make it ideal for industrial, research, or semiconductor environments where performance and consistency are critical. However, its cost and potential over-specification for simpler applications may not justify the purchase for all users.

### **Recommendation:** - **Buy if:**

- You require a **long-term, high-performance** solution in a **critical vacuum application** (e.g., semiconductor fabrication, cleanroom environments, or high-precision research).

- You prioritize **brand reliability** and **minimal maintenance** over cost savings.

- Your system **already uses Leybold/Burkert components**, ensuring compatibility and ease of integration.

- **Consider Alternatives if:**

- Your budget is **limited**, and a lower-cost valve (e.g., from Swagelok, Whitey, or another reputable brand) meets your needs.

- The application is **not ultra-sensitive**, and a simpler valve would suffice.

- You are unsure about **installation or maintenance**, as improper use could void warranties or cause system failures.

For best results, **purchase from an authorized Leybold distributor or reputable supplier** to ensure authenticity and warranty coverage. If possible, consult with a vacuum system specialist to confirm compatibility with your specific setup.

Details:

With its reliable brand reputation and specific model number, this valve is known for performance durability. Perfect for controlling the flow of gases and liquids in hydraulic, pneumatic, plumbing systems, this valve is essential maintaining efficient reliable operation a range industrial settings. The LEYBOLD BURKERT Vacuum Purge Gas Valve 85519 / 151171 is a high-quality valve designed for use in variety of industrial applications.

part #: 85519 price

  • $125.00

specifications valvesplumbing:

  • brand: Leybold
  • mpn: 85519
  • part type: Vacuum Valve
  • country of origin: Germany

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offer valvesplumbing:

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

seller valvesplumbing:

  • rating: 100.0%
  • # reviews: 1494
  • city: Temple, Texas

general valvesplumbing:

  • condition: Used
  • Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds

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

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  • class: Standard
  • carrier: FedEx
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  • type: Fixed
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  • transit: 3-7 Days
part type: vacuum valve, country of origin: germany,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > valves manifolds, sku: 24856144297763722,
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1 offer $125.00 USD
  • Used. Offer #1 priced at $125.00 + $0.00 shipping estimate = $125.00* total. The LEYBOLD BURKERT Vacuum Purge Gas Valve / is a high-quality valve designed for use in a variety of industrial applications.FREE SHIPPING

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