Stainless Steel Ball Valves for High- and Coarse-Vacuum Service
These stainless steel ball valves are specifically designed for high- and coarse-vacuum applications, ensuring optimal performance and reliability.
Key Features
- Minimal Leak Rate: Maintains a leak rate of less than 1 x 10⁻⁹ standard cc/sec of helium (He).
- Replaceable Seals: Equipped with PTFE seats and fluorocarbon seals that are easily replaceable without needing to demount the valve.
- Unrestricted Bore: When open, these valves provide an unrestricted bore, allowing for high gas conductance, making them ideal for low-cost sample entry locks.
- Effective Closure: When closed, the main bore is evacuated through a side vent hole, ensuring vacuum integrity and efficiency.
Specifications Table
| Manufacturer | TFM |
|---|---|
| Pressure | Torr Min: 1.000 x 10-8 Torr Max: 760 Torrmbar Min: 1.330 x 10-8 mbar Max: 1013 mbar |
| Rates | Helium Leak Rate 1.010 x 10-9 mbar*L/s 1.000 x 10-9 sccs 7.600 x 10-10 Torr*L/s |
| Temperature | Bakeable 150 ºC 302 ºFIntermittent Bake 200 ºC 392 ºF |
| Shaft Seal Material | Shaft with Fluorocarbon (FKM) Seal |
| Actuator Type | Pneumatic |
| Valve Body Material | 316L SS |
| Valve Seal Material | Teflon |
Ordering Table
| Drawing | Flange Size | Ball Size (inches) | Part Number |
| KF16 (1.18" OD) | 0.56 | BVB0075PVQF-AA |
| KF16 (1.18" OD) | 0.56 | BVB0075PVQF-AS |
| KF25 (1.57" OD) | 0.81 | BVC0100PVQF-AA |
| KF25 (1.57" OD) | 0.81 | BVC0100PVQF-AS |
| KF40 (2.16" OD) | 1.25 | BVD0150PVQF-AA |
| KF40 (2.16" OD) | 1.25 | BVD0150PVQF-AS |
| KF50 (2.95" OD) | 1.5 | BVE0200PVQF-AA |
| KF50 (2.95" OD) | 1.5 | BVE0200PVQF-AS |
| KF50 (2.95" OD) | 1.87 | BVF0200PVQF-AA |
| KF50 (2.95" OD) | 1.87 | BVF0200PVQF-AS |
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