Распределители золотниковые, пилотного управления, с электрогидравлическим управлением H-WEH...=UR

Description Solenoid coil is an approved component with UR-marking according to UL 906 Size 10, 16, 25 (H-WEH22), 25 (H-WEH25), 32 Component series 4X, 7X, 7X, 6X, 6X Maximum operating pressure 350 bar Maximum flow 1100 l/min Features Concealed manual override For subplate mounting Porting pattern according to ISO 4401 4/3-, 4/2- or 3/2-way version Spring or pressure centering, spring end position or hydraulic end position Wet-pin DC or AC solenoids, optional Electrical connection as individual connection Optional versions: - Switching time adjustment - Preload valve in channel P of the main valve - Stroke setting and/or spool position monitoring Product description Notices: The return springs (3.1) and (3.2) in the spring chambers (6) and (8) hold the main control spool (2) in central position without pilot pressure even with, for example, vertical valve positioning. Due to the design principle, internal leakage is inherent to the valves, which may increase over the life cycle. 4/3 directional valve with pressure centering of the main control spool, type H-WEH…H The main control spool (2) in the main valve is kept in the zero position by pressurization of the two front faces. One centering bush (12) rests on the housing and fixes the control spool position. By pressure relief of one front face, the main control spool (2) is moved to the switching position. The unloaded control spool face displaces the returning pilot oil into channel Y (external) via the pilot control valve. Notices: The springs (3.1) and (3.2) do not have a return function in this version. They hold the main control spool (2) in central position in the depressurized condition and with horizontal installation. Pilot oil supply (schematic illustration) Size 10 NG16 NG25 („W.H 22“) NG25 („W.H 25“) Size 32 1 Plug screw M6 according to DIN 906, wrench size 3 - Pilot oil return 2 Plug screw M6 according to DIN 906, wrench size 3 - Pilot oil supply 3 Plug screw M12 x 1.5 according DIN 906, wrench size 6 - pilot oil supply Pilot oil supply Pilot oil return External 2, 3 closed External 1 closed Internal 2, 3 open Internal 1 open Type H-WEH... The pilot oil supply is implemented externally - via channel X - from a separate pressure supply. The pilot oil return is implemented externally via the Y channel into the tank. Type H-WEH…E… The pilot oil supply is implemented internally from channel P of the main valve. (see Technical data) The pilot oil return is implemented externally - via channel Y - in the tank. In the subplate, port X is closed. Type H-WEH...ET... The pilot oil supply is implemented internally from channel P of the main valve. The pilot oil return is implemented internally via the channel T into the tank. In the subplate, ports X and Y are closed. Type H-WEH...T... The pilot oil supply is implemented externally - via channel X - from a separate pressure supply. The pilot oil return is implemented internally via the channel T into the tank. In the subplate, port Y is closed