This is of the second generation and can withstand pressures up to 250 bar. Here the needle is activated by a piezo element, from an analogue voltage that regulates the movement of the needle and enables a very fast response. It has a short opening time of 0.5 ms. Furthermore, the service life is improved due to the flexible control of the needle speed, which allows the speed of closing to be reduced, thus reducing the closing pressure.[1]

 


[1] Ibid. s. 17