Motion and control technologies company, Parker Hannifin, recently introduced its all-new TFP series, the two-way servo proportional cartridge valve. In this latest innovation from Parker, the clever design of the sleeve and spool, in conjunction with Parker’s patented VCD actuator technology, allows for previously unattainable flow and pressure drop values. Thanks to improved efficiencies compared to regular cartridge throttle valves, smaller nominal sizes can be used with the same output — therefore reducing the size (and cost) requirements of control manifold blocks.

The new TFP series valves feature a two-stage design characterized by Parker’s highly dynamic ‘DFPlus’ pilot valve and a main stage. The DFPlus pilot valve is used with the VCD actuator for extremely fast response times that actively position the main poppet. The main stage consists of a pressure-compensated sleeve (poppet), an enlarged seat diameter and oriented windows, which almost completely utilizes the DIN cavity. This results in exceptionally high flow and pressure values that can increase performance in demanding applications such as large die-cast machines used in the automotive industry.

Source: Parker

The TFP valve offers unique precision at higher operating pressure with extremely fast response times and enhanced reliability. This results in shorter cycle times, more stable processes and minimized scrap rates. Control manifold blocks can be designed to be much more compact and thus more cost effective. In addition, the position feedback system is installed in the pilot chamber in such a way that it is protected from possible pressure peaks that often occur in hydraulic systems.

The TFP series is available in seven nominal sizes ranging from NG25 to NG100. It is particularly suitable for applications where high flow must be precisely controlled at maximum dynamics such as die casting, injection molding and hydraulic presses.