Reliable and Economical Components for HV and UHV Applications
TFM provides dependable and cost-effective general-purpose components ideal for high vacuum (HV) and ultra-high vacuum (UHV) applications, emphasizing cleanliness and resistance to corrosion.
Enhanced Performance in the Open Position
In the open position, the edge-welded bellows and valve seat move out of the gas path, which effectively enhances conductance. This design feature ensures minimal resistance, optimizing gas flow and vacuum efficiency.
Temperature Resistance and Vacuum Performance
These components can endure intermittent baking temperatures up to 200°C, with a continuous operational limit of 150°C. This capability significantly improves the ultimate vacuum performance of your system.
Key Features
- Advanced Sealing Technology: Each valve includes fluorocarbon O-ring seat seals, bellows-sealed shafts, and bonnet seals. For applications requiring higher temperature bakeout and improved ultimate vacuum, copper seals are available as an option.
- Maintenance-Friendly Design: Normal repairs can be carried out without needing to remove the valve body from the system, ensuring quick and efficient maintenance.
Specifications for Pneumatic Models
- Actuation Mechanisms: Pneumatic models feature a spring-to-close operation for valves 2 inches and smaller. For valves measuring 2-1/2 inches and larger, the operation is air-to-open and air-to-close.
- Solenoid Requirement: These pneumatic valves require a solenoid for operation (sold separately; refer to accessories for details).
TFM’s bellows sealed angle valves are engineered for exceptional reliability and performance in demanding vacuum environments, making them the optimal choice for HV and UHV applications.
Specifications Table
| Manufacturer | TFM |
|---|---|
| Pressure | Torr 7.520 x 10-9 Torr mbar 1.000 x 10-8 mbar |
| Rates | Leak Rate 2.000 x 10-9 mbar*L/s 1.504 x 10-9 Torr*L/s |
| Temperature | Actuator 80.0 ºC 176 ºFClosed Bake 100 ºC 212 ºFOpen Bake 100 ºC 212 ºF |
| Actuator Type | Pneumatic Single Acting |
| Solenoid Kit Included | No |
| Position Indicators | No |
| Bonnet Seal Type | Fluorocarbon (FKM) |
| Valve Body Material | 304L SS |
| Poppet Material | Fluorocarbon (FKM) |
| Shaft Seal | Welded Bellows |
Ordering Table
| Drawing | Flange Size | Bonnet Seal Type | Solenoid Kit Included | Position Indicators | Part Number |
| DN16CF (1.33" OD) | Copper | No | No | SA0075PCCF |
| DN16CF (1.33" OD) | Fluorocarbon (FKM) | No | Yes | SA0075PVCF |
| DN35CF-DN40CF (2.75" OD) | Copper | No | No | SA0150PCCF |
| DN35CF-DN40CF (2.75" OD) | Fluorocarbon (FKM) | No | Yes | SA0150PVCF |
| DN50CF (3.38" OD) | Copper | No | No | SA0200PCCF |
| DN63CF (4.50" OD) | Copper | No | No | SA0250PCCF |
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