The oil-free and dry compressing small diaphragm pumps from the PB-19 product line can be used for evacuating, conveying and compressing gases and vapours up to a final vacuum of 85 mbar. Two different ranges with further unique models are available within the product line. (Curve presentation of the standard models, per model range).
The PB-19 product line is equipped with a single-cylinder diaphragm pump with con-rod drive, which carries out an oscillating, tumbling and rocking, upwards and downwards movement of the diaphragm. The diaphragm is fastened to a rigid con-rod and is subjected to a greater or lesser degree of flexing and stretching, depending on the length of the con-rod. The well-thought-out design of the drive offers the user a compact construction and low spatial requirements.
The range is further distinguished by quiet operation with proven long service life and maintenance-free operating time.
The materials used, such as aluminium for the gas-conducting components, stainless steel for the valves and piping and VITON (FKM) for the diaphragms, open up a wide range of application options with non-aggressive gases.



| Series | MP38-H3,6-W26 | MP38-H5-W26 |
|---|---|---|
| Free flow | 4 l/min | 6 l/min |
| Final vacuum | 270 mbar | 170 mbar |
| Final pressure (abs.) | 2 bar | |
| Pump heads | 1 | |
| Hose coupling, suction / pressure | G 1/8" | |
| Motor power / r.p.m. | 0.09 kW / 2600 min-1 | |
| Mains requirement / Frequencies | 230 V - 50-60 Hz o. 115 V - 50-60 Hz | |
| Noise level | 49 dBA bis 57 dBA | |
| Permissible gas admission temp. | + 5 C° bis + 45 C° | |
| Permissible ambient temperature | + 5 C° bis + 45 C° | |
| Permissible ambient temperature motor | + 5 C° bis + 45 C° | |
| Permissible ambient temperature pump | + 5 C° bis + 45 C° | |
| Dimensions L x W x H | 105 mm x 61 mm x 83 mm | |
| Weight | 1.2 kg | |
| Impermeable to gas | 1 x 10-3 | |