Распределительный poppet клапаны, directly с приводом, С Соленоид приводом SED 6…XE

Description Size 6 Component series 1X Maximum operating pressure 350 bar Maximum flow 25 l/min Area of application in accordance with the Explosion Protection Directive 2014/34/EU: II 2G; II 2D Type of protection valve: – Ex h IIC T4 Gb X according to EN 80079-36 – Ex h IIIC T115°C Db X according to EN 80079-36 Type of protection, solenoid coil: – Ex eb mb IIC T4 Gb according to EN 60079-7 / EN 60079-18 – Ex tb IIIC T115°C Db according to EN 60079-31 Solenoid coil certified according to IECEx Features 3/2- or 4/2-way version For intended use in potentially explosive atmosphere Porting pattern according to ISO 4401-03-02-0-05 (but without locating hole) Wet-pin DC or AC solenoids Electrical connection with individual connection and cable gland With concealed manual override, optional Product description 3/2 directional seat valve General information Directional valves of type SED are direct operated directional seat valve with solenoid actuation. They control start, stop and direction of flow. The directional valves basically consists of a housing (1), the solenoid (2), the valve seats (7) and (11) as well as of the control spool (4). The manual override (6) allows for the switching of the valve without solenoid energization. For unobjectionable functioning, the hydraulic system has to be bled properly. Basic principle The initial position of the valve (normally open "UK" or normally closed "CK") is determined by the arrangement of the spring (5). The chamber (3) behind the control spool (4) is connected to port P and sealed against port T. Thus, the valve is pressure-compensated in relation to the actuating forces (solenoid and spring). By means of the control spool (4), the ports P, A and T can be loaded with the maximum operating pressure (350 bar) and the flow can be directed in both directions (see symbols). In the initial position, the control spool (4) is pressed onto the seat (11) by the spring (5), in spool position, it is pressed onto the seat (7) by the solenoid (2). The flow is blocked. Seat valves can be used according to the spool symbols as well as the assigned operating pressures and flows (see "Performance limits"). The seat arrangement offers the following options: Symbol UK CK Type M-3SED 6 UK... Throttle insert The use of a throttle insert is required when, due to prevailing operating conditions, flows occur during the switching processes which exceed the performance limit of the valve. 4/2 directional seat valve With a sandwich plate, the Plus-1 plate , under the 3/2 directional seat valve, the function of a 4/2 directional seat valve is achieved. Function of the Plus-1 plate Initial position: The main valve is not actuated. The spring (5) holds the control spool (4) on the seat (11). Port P is blocked and A is connected to T. Apart from that, one control line is connected from A to the large area of the control spool (8), which is thus unloaded to the tank. The pressure applied via P now pushes the ball (9) onto the seat (10