Bellows-sealed right-angle valves for ISO-K clamp flanges. The manual type (DN 63, DN 100) has a removable handle and can also be used like a variable leak valve to roughly control gas flow. The electropneumatic type (DN 63, DN 100, DN 160) closes by spring return and is used in automated vacuum systems.
| Connection Standard | ISO-K DN 63 / DN 100 (manual); DN 63 / DN 100 / DN 160 (electropneumatic) |
| Actuation Type | Manual / electropneumatic |
| Body Material | Aluminum (EN AL 42000) or stainless steel (1.4404 / 1.4301) |
| Bellows Material | Stainless steel AISI 316L / 316 Ti |
| Leak Rate | 1×10⁻⁹ mbar·l/s |
| Operating Pressure Range | 1×10⁻⁸ to 5000 mbar (DN 63); 1×10⁻⁸ to 2000 mbar (DN 100, DN 160) |
| Conductance (Molecular Flow) | 160 l/s (DN 63) / 440 l/s (DN 100) / 1000 l/s (DN 160, electropneumatic) |
| Operating Temperature | Max. 80 °C |
| Seal Material | FPM (Viton) (manual) / FKM (Viton) (electropneumatic) |
| Service Life | Manual DN 63 3 million cycles, manual DN 100 10,000 cycles, electropneumatic 1 million cycles |
| Compressed Air (Electropneumatic) | 4-8 bar (DN 63) / 4.5-7 bar (DN 100, DN 160), connection 6 mm |
| Closing / Opening Time (Electropneumatic) | ≤ 1 s (DN 63, DN 100) / ≤ 1.5 s (DN 160) |