The oil-free and dry compressing diaphragm pumps from the PB-31 product line can be used for evacuating, conveying and compressing gases and vapours up to a final vacuum of 85 mbar. Three different ranges with further unique models are available within the product line. (Curve presentation of the standard models, per model range).
The PB-31 product line is equipped with a two-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.
|Free flow||8.4 l/min||33 l/min||23.5 l/min|
|Final vacuum||150 mbar||85 mbar||95 mbar|
|Final pressure (abs.)||4 bar||2 bar||3 bar|
|Hose coupling, suction / pressure||G 1/4"|
|Motor power / r.p.m.||0.04 kW / 1400 min-1|
|Mains requirement / Frequencies||230 V - 50 Hz|
|Noise level||57 dBA bis 59 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||204 mm x 119.5 mm x 157.5 mm|
|Impermeable to gas||1 x 10-3|