Positive Displacement Pumps
Leutert high pressure positive displacement pumps are precision instruments, used to meter, fill, or proportion predetermined quantities of liquid. Hand operated volumetric pumps are primarily used in laboratories as they meter with a precision necessary to many laboratory experiments. All wetted parts are made from NACE approved material.
During operation an accurately machined plunger is driven into a cylindrical chamber filed with fluid such as various hydrocarbons, chemicals, brines or mercury. The plunger is driven by a spindle. Plunger and spindle form an integral unit.
Pumps rated for lower pressure use a hand turnstile to turn the threaded spindle. The turnstile is equipped with three arms to facilitate increments increase in pressure.
Higher pump pressure require higher operating torque. For ease of operation and enhanced resolution, pumps with working pressures above 10,000 psi are provided with a hand-wheel and worm-gear drive. These pumps are also available as motor driven, single or double cylinder units.
The changes of volume by movement of the plunger are displayed on a high precision digital scale for most accurate volume readings. Digital pressure and temperature gauges are also available. Pressure, volume and temperature (PVT) data may be logged and processed with a windows based software.
Leutert pumps can be equipped with cylinder heating or cooling jackets so that the temperature of the liquids to be discharged can be controlled.
| Model: | Hand pump with turnstile |
Hand pump with handwheel and worm-gear drive |
||
| Single stroke volume: | 100 cm³, 200 cm³ | 100 cm³, 250 cm³ | ||
| Maximum pressure rating: | 10,000 psi | 25,000 psi | ||
| Pressure accuracy: | 0.1% FS | 0.1% FS | ||
| Volume accuracy: | 0.5% FS | 0.1% FS | ||
| Temperature regulation: | ± 1 K | ± 1 K | ||
| Temperature range: | ambient to 250°F | 15°F to 350°F | ||
| Wetted parts: | NACE approved stainless steel |
NACE approved stainless steel |
||
| Cylinder outlets: | 4 x 7/16”-20UNF | 4 x 9/16”-18UNF | ||
