fabricreinforceddiaphragm.cn Rubber diaphragm|development

The KNF Structured Diaphragm
In the development of the structured diaphragm, the primary objective was to combine the advantages of the flat and moldedRubber diaphragms, and at the same time to eliminate the disadvantages. This was achieved by analyzing the stresses and led to the development of a structure for the underside of theRubber diaphragm. By stiffening theRubber diaphragmin the center it was possible to reduce the size of the vulcanized-in metal part significantly, compared with the molded diaphragm. These measures produce an average reduction of 15% in mechanical loading in theRubber diaphragm, and reduce the effort needed to turn the pump.
The result is a diaphragm with:
Simple and economical design
Low wear
Comparatively high pressure capability
High flow rate
A low ultimate vacuum
Chemical resistance
High Efficiency
For many applications the miniaturization of the pump that the structured diaphragm makes possible is particularly important. The optimized diaphragm structure makes it possible to design a smaller diaphragm, so that the successor model of a pump with a flow rate of 5 standard litres of air per minute could be smaller in all the main dimensions. This new pump occupies only 63% of the volume of its predecessor. The user can reduce the space for the pump in his product by more than two-thirds. Naturally, when the volume is smaller the weight is reduced as well.
By using the structured diaphragm the desire for increased performance without making the pump bigger can also be satisfied. Compared with a molded diaphragm pump, one fitted with a structured diaphragm can accommodate a longer stroke, with the same elastic deformation of the diaphragm material, and without compromising the mechanical data. At the same time less power is required to drive the pump. Combining as it does the advantages of flat and moldedRubber diaphragms, the new structured diaphragm represents a milestone in diaphragm pump technology. Pumps with structured diaphragms cannot only met the demands of existing fields of application better than was previously possible, but also fulfill the needs of completely new applications.