Model: GVD-SS-P
A pneumatically actuated fast-closing gate valve for isolating high-vacuum (HV) chambers. It uses a wedge-shaped gate, comes in ISO 63, 80, 100, 160 and KF 50 sizes, and is also available with a lockout/tagout (LOTO) device.
| Body and Gate Material | SS304 |
| Actuation Type | Pneumatic (LOTO version optional) |
| Pressure Range (mbar) | 1×10⁻⁸ to 1200 |
| Max. Differential Pressure (bar) | 1.2 |
| Max. Differential Pressure During Opening (bar) | ≤ 1.0 |
| Helium Leak Rate (Shaft, mbar·l/s) | < 1×10⁻⁹ |
| Helium Leak Rate (Bonnet, mbar·l/s) | < 1×10⁻⁹ |
| Helium Leak Rate (Gate, mbar·l/s) | < 1×10⁻⁷ |
| Cycle Life (Gate, until first service) | 5,000 |
| Cycle Life (Shaft feedthrough) | 100,000 |
| Bake Temperature (Valve body, °C) | ≤ 180 |
| Bake Temperature (Actuator, °C) | ≤ 80 |
| Compressed Air Pressure (kg/cm²) | 4 to 7 |
| Compressed Air Connection (mm) | Ø6 |
| Closing Time (KF50, ISO63) | ≤ 0.35 sec |
| Closing Time (ISO80, ISO100) | ≤ 0.5 sec |
| Closing Time (ISO160) | ≤ 1 sec |
| Opening Time (KF50, ISO63, ISO80, ISO100) | ≤ 1.0 sec |
| Opening Time (ISO160) | ≤ 1.5 sec |
| Standard Seal (Shaft, Bonnet, Gate) | FKM (Viton) O-ring |
| Options | Position indicator (reed sensor, 2-wire, 24VDC), solenoid valve (5/2-way single, 24VDC) |
| Surface Treatment | Scotch polished |
| Mounting Orientation | Any |