Model: 0300 / 4100 / 4200 / 4500 / 4600 / DV1
A HOKE packless instrumentation-valve family using bellows or diaphragms to isolate process media from atmosphere.









| 0300 operating range | Vacuum to 200 psig (NC) or 350 psig (NO); -40 to 121 °C |
| 4100 stainless version | Vacuum to 1000 psig; -40 to 316 °C |
| 4200 family technical data | Hard seat: 2000 psi at 316 °C; high vacuum: to 10^-5 Torr; temperature limits vary by part number (see catalog) |
| 4500 | 10^-5 Torr to 300 psig; -29 to 120 °C |
| 4600 | Vacuum to 300 psig; welded version to 316 °C |
| DV1 | 50 Torr vacuum to 3600 psig; 0.16 cc internal volume |