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PRM8-06

PRM8-06
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Proportional Directional Control Valves Dn 06 • pmax 350 bar (5076 PSI) • Qmax 140 l/min (37 GPM) Continuous control of both flow rate directions High reliability Indirect control concept with a floating spool High parameters of controlled flow rates Installation dimensions to DIN 24 340 / ISO 4401 / CETOP RP121-H Functional Description The proportional directional control valve consists of a cast-iron body (1), main spool (2), control spool (3), two auxiliary centring springs (4), two main return springs (5) and two proportional solenoids (6). The pilot controlled main spool valve copies the control spool position, which is given the control current of the solenoid. The central position of the main spool is defined by the auxiliary centring springs. The solenoids are supplied from an external source, which should be provided with a current feedback. In order to achieve optimum operating parameters the external elektronics should be able to generate an additional dither - signal.The proportional valve can be used within the whole range of input pressure, where within the required continuity of the flow-rate characteristics and minimum hysteresis is achieved. The selected concept increases the achieved output parameters of the proportional valve in comparison to direct controlled proporcional valve. Further on the valve shows a monotone increasing relation between pressure gradient and flow rate by constant control current. Proper functions of the valve are guaranteed only, if the supply pressure in the “P” channel is present; this pressure must be always higher than the pressure in the “T” channel. The basic surface treatment of the valve housing is phosphate coated and the operating solenids are zinc coated.

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Proportional Directional Control Valve Seals Nominal size 3Z11 Type of solenoid coil and Electronics Nominal flow rate at Dp = 10 bar Nominal supply voltage 12 V DC 24 V DC - Type of solenoid coil Connector EN 175301-803-A Connector EN 175301-803-A with quenching diode Axial connector AMP Junior Timer (2 pins; male) Axial connector AMP Junior Timer with quenching diode Connector Deutsch DT04-2P (2 pins; male) Connector Deutsch DT04-2P with quenching diode Other coils on demand see catalog HA 8007. Electronics for controlling proportional valves is possible to order separately, see catalog...

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Valve Dimensions Dimensions in millimeters (inches)

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Solenoid coil Seal kit Connector plug EN 175301-803-A Bolt kit Nut + seal ring Ordering number Nominal supply voltage [V] Ordering number Dimensions, number Ordering number 3. Connector plug EN 175301-803-A Type bez usměrňovače - M16x1,5 (otvor průchodky Æ 6-8 mm) Type designation 4. Bolt kit Dimensions, number Tightening torque Ordering number Seal ring Ordering number 5. Nut + seal ring Type of the nut Standard nut Caution ! The packing foil is recyclable. The protective plate can be returned to manufacturer. Mounting bolts M5 x 45 DIN 912-10.9 or studs must be ordered separately....

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