The 7191 is a hand operated pressure pump designed to generate either vacuum to -0.95 bar (-14psi) or pressures to 4bar (60psi). A high-quality screw press is designed for fine pressure adjustment, with adjusting resolution up to 0.0001mbar (0.01Pa). To reach the pressure stability as high as possible during the pressure calibration, an isothermal bellows chamber is designed for reducing the possible heat effects such as environmental temperature change. The 7191 is designed without a non-returning valve meaning minimal maintenance is required. Two finger-tight connectors installed on the pump allow the user using fingers to connect and disconnect the reference gauge and devices under test quickly and easily without the need for PTFE tape or wrenches.
| Media |
Air |
| Generated Pressure |
0.95bar vacuum to 4bar pressure (14psi vacuum to 60psi pressure) |
| Pressure Resolution |
0.0001mbar / 0.01Pa |
| Material |
Ram/adapters: SST; Body: SST/aluminum; Seals: Buna-N (nitrile) |
| Connection |
Finger-tight connectors for both test gauge and reference gauge |
| Test Gauge Connection |
1/4” BSP |
| Reference Gauge Connection |
1/4” BSP |