A ball valve that opens and closes a vacuum line by turning a ported ball 1/4 turn. Its simple, rugged design suits dirty vacuum service such as isolating traps and scrubbers, isolating gauges and roughing lines. Manual, pneumatic and electric actuation are available, with KF and ISO-K flanges.
| Actuation Type | Manual, pneumatic (1/4 turn), electric |
| End Connection | KF(NW), ISO-K flange |
| Size | KF type 1" to 2" (25.4 to 50.8 mm) |
| Pressure Range | 2 bar to 1×10⁻⁴ mbar |
| Leak Rate | 9×10⁻⁷ mbar·l/s |
| Material | SS316, PTFE |
| Maximum Temperature | Cylinder 80 ℃, body 100 ℃ |
| Compressed Air Connection | KF25 2×1/8" NPT, KF40 and KF50 2×1/4" NPT |
| Compressed Air Pressure | 4 to 7 kg/cm² (ISO-K pneumatic type) |
| Electric Models | KF25BV107E, KF40BV130E, KF50BV151E |
| Power Supply | Standard 220 V |
| Options | Limit switch, solenoid |