A valve for metering fluid includes: a piezoelectric actuator for metering control; two electrical connection elements for applying an electrical control voltage; and a discharge resistor integrated into the actuator, which resistor bridges the two connection elements. The openings in the cutter plate have an unique shape which assists in the cutting of material which flows through an inlet of a grinder pump. The process according to the present invention is particularly suitable for filling the spaces in, around and between honeycomb or pre-formed foam cores as required to produce a filled or partially filled honeycomb or foam core or any other material used in sandwich panel construction. Each node consists of a first common board carrying a microcontroller and a basic number of FET driver switches associated with a basic level of accessorization for that region of the vehicle. ; and continuously coiling the quenched strip at a temperature of 200 C.