Description Size 6 Component series 6X Maximum operating pressure 500 bar Maximum flow 5 l/min Features Pressure-controlled, direct actuated proportional valve for pressure limitation (pilot valve) For subplate mounting: Porting pattern according to ISO 4401 Integrated pressure sensor Actual pressure value can be read via analog output Pressure controller adjustable for various applications (simple adjustment via DIL switch) Linear command value pressure characteristic curve Virtually flow-independent pressure control CE conformity according to EMC directive 2004/108/EC Product description General information Proportional pressure relief valves of type DBETA are used for system pressure limitation. Operation is effected by means of proportional solenoid. The pressure is regulated by the pressure sensor and the valve electronics. Dependent on the electric command value, these valves can be used to steplessly set and adjust the system pressure to be limited. The valves mainly consist of the housing (1), the valve seat (3), the valve poppet (4), the proportional solenoid (2), the integrated electronics (7) and the pressure sensor (8). Basic principle The supply voltage and the command value are applied to the connector (6). Dependent on the command value, the electronics convert the input signal into current. The proportional solenoid converts the electric current into mechanical force that acts on the valve poppet (4) via the armature plunger (5). The valve poppet (4) counteracts the hydraulic force in channel P. When the hydraulic force at the valve poppet (4) equals the solenoid force, the set pressure is reached. By increasing/reducing cross-section P to T, the pressure is maintained at the set level. The pressure sensor (8) captures the pressure in channel P and/or B and the integrated electronics (7) regulate the pressure independently of the flow. Connector (6) provides the pressure in channel P and/or B as an analog actual value (0 to 10 V and/or 4 to 20 mA). If the command value is zero, the control electronics only applies the minimum control current to the proportional solenoid (2) and the minimum set pressure is applied. With the DIL switch (9) the integrated pressure controller can be adjusted to various applications. Type code 01 02 03 04 05 06 07 08 09 DBETA ‒ 6X / P G24 K31 * 01 Proportional pressure relief valve, pressure-controlled with integrated electronics (OBE) DBETA 02 Component series 60 … 69 (60 … 69: unchanged installation and connection dimensions) 6X 03 Pressure measurement in channel P P Maximum set pressure 04 Up to 50 bar 50 Up to 100 bar 100 Up to 200 bar 200 Up to 350 bar 350 Up to 500 bar (only possible in version "M") 500 Supply voltage of the integrated electronics (OBE) 05 Direct voltage 24 V G24 Electrical connection 06 Connector DIN EN 175201-804 K31 Electrical interface 07 Command value 0 … 10 V A1 Command value 4 to 20 mA F1 Seal material 08 NBR seals M FKM seals V Observe compatibility of seals with hydrauli
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