Распределители тарельчатые, прямого действия, с электромагнитным управлением SE 6 …XM

Description Size 6 Component series 6X Maximum operating pressure 420 bar Maximum flow 4 l/min Area of application in accordance with the Explosion Protection Directive 2014/34/EU: I M2 Type of protection valve: Ex h I Mb X according to EN 80079-38 Type of protection valve solenoid: Ex ib I Mb according to EN 60079-0 Valve solenoid 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) Blocked connection tight Safe switching also with longer standstill periods under pressure Wet-pin DC solenoids Electrical connection as individual connection with cable gland or connector (depending on the valve type) With manual override Product description 3/2 directional seat valve General Type SE directional seat valves are direct operated directional valves with solenoid actuation. They control start, stop and direction of flow. The directional valves basically comprise a housing (1), the solenoid (2), the hardened valve system (3) and the balls (4.1 and 4.2) as closing element. For unobjectionable functioning, the hydraulic system has to be bled properly. Basic principle In the initial position, the ball (4.1) is pressed onto the seat by the spring (7), in spool position, the ball (4.2) is pressed onto the seat by the solenoid (2). The force of solenoid (2) acts via the ball (5) on the actuating plunger (6) that is sealed on two sides. The chamber between the two sealing elements is connected to port P. Thus, the valve system (3) is pressure-compensated in relation to the actuating forces (solenoid or return spring). Thus, the valves can be used up to 420 bar. Notes: The 3/2 directional seat valves have a "negative spool overlap". Therefore, port T must always be connected. That means that during the switching process – from the starting of the opening of one valve seat to the closing of the other valve seat – ports P–A–T are connected with each other. However, this process takes place within such a short time that it is irrelevant in nearly all applications. The manual override (10) allows for the switching of the valve without solenoid energization. Make sure that the specified maximum flow is not exceeded. A throttle insert must be used for flow limitation, if necessary (see "Planning instruction"). In order to switch the valve safely or maintain it in its spool position, the pressure situation at the relevant ports must be as follows: P ≥ A ≥ T. Ports P, A, B and T are clearly specified according to their tasks. They must not be exchanged or closed. The flow is only admissible in the direction of arrow. The seat arrangement offers the following options: Symbol U C Initial position P and A connected, T blocked P blocked, A and T connected Spool position P blocked, A and T connected P and A connected, T blocked Type E-3SE 6 C… 4/2 directional seat valve With a sandwich plate, the Plus-1 subplate , under the 3/2 directiona