Description Size 1 Component series B Maximum operating pressure 350 bar Maximum flow 20 l/min Features Mounting cavity R/T-11A Direct operated directional seat valve with solenoid actuation, tight on both sides Blocked port tight in a leak-free form Reliable switching even after longer periods of standstill Wet-pin DC solenoids Solenoid coil can be rotated Product description General The 3/2 directional seat valves are direct operated, pressure-compensated screw-in cartridge valves. They basically consist of a screw-in section (4) with valve seat (1), solenoid (5) as well as closing element (3) and compression spring (2). Function The initial position of the valve (normally open “U" or normally closed “C") is determined by the position of the closing element (3) and the arrangement of the compression spring (2). Due to the structural design, the 3/2 directional seat valves are always pressure-compensated in relation to the actuating forces. The main ports ➀ and ➁ can be loaded with an operating pressure of 350 bar/500 bar (see Technical data) and are blocked in a leakage-free manner in the respective end position. While switching, the main ports are connected for a short period of time (negative overlap). Attention! The flow is only admissible in the direction of arrow (see symbols)! With version “U” (operating pressure 500 bar [7250 psi]) as well as with version “R...-17”, the main port ➀ is to be connected to the pump connection P! The valves of version “R...-17” are flow-optimized and thus achieve a greater switching power. The manual override allows the switching of the valve without solenoid energization. It is available in concealed version "N9" (6) or in screwable version "N11" (7) (see ordering codes). Version "K4" (with mating connector) Type KSDER1UB/HN9V Version "C4" Version "K40" Type code load error Technical data load error Diagrams/characteristic curves load error Symbols/Circuit diagrams Version “R” (350 bar) Symbol “ C “ normally closed Symbol “ U “ normally open Version “U” (500 bar) and “R…-17” (350 bar) Symbol “ C “ normally closed Symbol “ U “ normally open Dimensions load error Downloads Hydraulic valves and hydroelectric pressure switches for industrial applications Manual | RE07600-B | 2021-06-21 | English | PDF | 306k Product Groups: Industrial Hydraulics On/off, proportional, high-response and servo valves, pressure switches 3/2 directional seat valve, direct-operated, with solenoid actuation KSDE.1 Data Sheet | RE18136-21 | 2021-08-05 | English | PDF | 827k Product Groups: KSDE. 1C/U (High Performance), 3/2 directional seat valves, direct operated with solenoid actuation Size 1, Series B
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