
( Brand: Mks Instruments ), ( Manufacturer Part Number: 100018753 ), ( Part Type: Pneumatic Angle Valve ), ( Country Of Origin: United States )
The **MKS 100018753 Ultra-High Vacuum (UHV) Pneumatic Angle Valve** is a precision-engineered component designed to deliver exceptional performance in demanding vacuum applications where reliability, leak tightness, and rapid actuation are critical. This valve is specifically engineered for use in ultra-high vacuum systems, where maintaining pressures below 10 Torr is essential, such as in semiconductor manufacturing, particle accelerators, surface science research, and advanced materials processing. Constructed from high-purity materials, the valve features a **3-way angle design** with a **pneumatic actuator**, allowing for seamless integration into complex vacuum line configurations where space efficiency and directional control are paramount. The valve s **UHV-compatible stainless steel (typically 304L or 316L) body and components** ensures minimal outgassing, preventing contamination of the vacuum environment, while its **KF or ISO flange connections** (depending on the configuration) provide standardized compatibility with other vacuum system components. The **pneumatic actuation system** leverages compressed air or inert gas to achieve rapid and precise valve operation, with a typical response time measured in milliseconds, making it ideal for automated processes where speed and repeatability are non-negotiable. A key feature of this valve is its **metal-sealed design**, utilizing either **copper or aluminum gaskets** (depending on the model variant) to ensure an ultra-tight seal, virtually eliminating the risk of leaks even under extreme differential pressures. The valve s **normally closed (NC) or normally open (NO) configurations** offer flexibility in system design, allowing operators to control gas flow with minimal dead volume, which is crucial for maintaining system efficiency. Additionally, the **pneumatic interface** includes a **quick-disconnect fitting**, simplifying installation and reducing the potential for leaks at the actuator connection. Built to withstand the rigorous demands of UHV environments, the valve is thoroughly tested for **hermeticity, cycle life, and pressure endurance**, ensuring long-term durability and consistent performance across thousands of actuations. Whether deployed in a cleanroom environment, a high-energy physics experiment, or a precision thin-film deposition chamber, the MKS 100018753 UHV Pneumatic Angle Valve exemplifies the pinnacle of vacuum control technology combining unmatched reliability, precision, and adaptability to meet the most exacting scientific and industrial applications.
### **Pros and Cons of buying a MKS 100018753 UHV Pneumatic Angle Valve**
#### **Pros:**1. **Ultra-High Vacuum (UHV) Compatibility** Designed for applications requiring extreme vacuum levels (typically below 10 -9 Torr), making it suitable for scientific research, semiconductor manufacturing, and advanced vacuum systems.
2. **Pneumatic Actuation** Remote control via air pressure eliminates the need for manual operation, improving efficiency and reducing human error in high-vacuum environments.
3. **High Reliability and Durability** Built with precision-engineered components to withstand prolonged use in demanding conditions, reducing maintenance frequency.
4. **Low Outgassing** Constructed from materials that minimize gas desorption, ensuring stable vacuum performance over time.
5. **Compact and Space-Efficient Design** The angle valve configuration allows for flexible installation in tight or confined spaces.
6. **Compatibility with MKS Vacuum Systems** Seamless integration with other MKS components, ensuring compatibility in existing setups.
7. **Long-Term Stability** Suitable for critical applications where consistent performance is essential, such as in particle accelerators or thin-film deposition systems.
8. **Minimal Leakage** Properly sealed design helps maintain vacuum integrity, reducing the risk of contamination.
#### **Cons:**1. **High Initial Cost** As a specialized UHV component, the price is significantly higher than standard pneumatic valves, which may be a barrier for smaller labs or budget-conscious buyers.
2. **Limited Availability of Spare Parts** Due to its niche application, sourcing replacement parts or repairs may be challenging and time-consuming.
3. **Specialized Installation Requirements** Proper alignment, sealing, and integration with vacuum systems require expertise, potentially increasing setup costs.
4. **Maintenance Complexity** While durable, UHV components may require specialized cleaning or recalibration over time, which demands trained personnel.
5. **Potential for Air Leakage Over Time** If not properly maintained, pneumatic seals or connections could degrade, compromising vacuum performance.
6. **Dependence on External Air Supply** The valve relies on a consistent pneumatic source, which may not always be available in all setups.
7. **Limited Customization Options** The valve is designed for specific applications, and modifications may not be feasible without engineering adjustments.
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### **Conclusion:**The **MKS 100018753 UHV Pneumatic Angle Valve** is an excellent choice for applications requiring **ultra-high vacuum performance, remote control, and long-term reliability**. Its precision engineering and compatibility with advanced vacuum systems make it indispensable in fields like **semiconductor fabrication, scientific research, and particle physics**. However, its **high cost, specialized maintenance needs, and potential supply chain limitations** must be carefully considered before purchase.
### **Recommendation:** - **Buy if:**- You are working in a **UHV-sensitive environment** (e.g., semiconductor manufacturing, synchrotron labs, or thin-film deposition).
- Budget constraints are not a major concern, and long-term reliability is prioritized.
- Your facility already uses **MKS vacuum systems**, ensuring seamless integration.
- You have access to **trained personnel** for installation and maintenance.
- **Avoid if:**- Your application does not require **UHV conditions**, as lower-cost alternatives (e.g., standard CF or ISO pneumatic valves) may suffice.
- Budget is a critical factor, and you can find equivalent performance at a lower price from other manufacturers.
- Your team lacks expertise in **UHV system maintenance**, as improper handling could lead to costly failures.
For most **high-end vacuum applications**, this valve is a **strong investment** due to its performance and durability. However, thorough cost-benefit analysis and system compatibility checks are essential before finalizing the purchase.
Only items pictured are included: If a part is not pictured, or mentioned above, then it included in the sale. Sale Details. The physical condition is good, but there are signs of previous use and handling. Estimated Packed Shipping Dimensions: L x W12 x12 8 lbs.
Item condition: Working, 90 Day Warranty. MKS Instruments 100018753 UHV Pneumatic Angle Valve Working Surplus. Pictured test equipment is not included or available for sale. Part No: 100018753.
Made in the USA This item is working surplus. Serial numbers or country of manufacture may vary.