Description Size 8 Component series 1X Maximum operating pressure 350 bar Maximum flow 300 l/min Features 3/2-way version Cartridge valve Fast switching, clocked DC solenoid Conrol using analog amplifiers Product description Directional valves of type WES are fast-switching solenoid-actuated directional spool valves. Electrical and hydraulic components are combined in a compact design. These components control the start and stop of the flow. The directional valve basically consists of the housing (1), an integrated solenoid (2), the control spool (3), a thread ring (4), mounting plate (5) and one stop bushing (6) with return spring (7). The fast-switching solenoids (2) are controlled via a booster amplifier supplying a pulse-width modulated voltage and current signal. To achieve the specified switching time and flow values, a defined current profile must be complied with (see page 6). The force of the solenoid (2) acts on the control spool (3) and pulls the latter from its initial position to the blocked switching position. This way, the direction of flow from P to A1 and A2 is blocked. After switching off of the solenoid (2), the return spring (7) pushes the control spool (3) back to its initial position. Type code 01 02 03 04 05 06 07 08 09 10 11 12 3 WES 8 P 1X K / A G24 CK50 / V SO1 * 01 3 main ports (P, A, (A1+A2)) 3 02 Directional spool valve, direct operated, fast switching WES 03 Size 8 8 Symbol 04 Normally open P 05 Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) 1X 06 Cartridge valve K 07 Fast switching solenoid coil A 08 Direct voltage, clocked 24 V G24 Electrical connection 09 Connection line 5 m with litz wire 2 x 1.5 mm2 CK50 Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") 10 FKM seals V 11 Improved switch-off power limit SO1 12 Further details in the plain text * 1) Symbol representation according to DIN ISO 1219‑1 Technical data (For applications outside these values, please consult us!) general Size 8 Installation position any Ambient temperature range °C +20 … +85 Transport temperature range °C -40 … +85 Storage temperature range °C -20 … +50 Maximum surface temperature of the valve 1) 2) 3) °C + 85 Life cycle rating B10 value Switching cycles 675 million Weight Valve kg 1.2 Valve with 5 m cable kg 1.9 1) In installed condition 2) Surface temperature > 50 °C, provide contact protection. 3) Operating conditions: installed in control block +70 °C, hydraulic fluid temperature +70 °C hydraulic Size 8 Maximum operating pressure bar 350 Maximum flow l/min 300 Hydraulic fluid see table "Hydraulic fluid" Hydraulic fluid temperature range HL, HLP °C +40 … +70 SAE 40 °C +60 … +70 Viscosity range HL, HLP mm²/s 15 … 46 SAE 40 mm²/s 35 … 55 Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) Class 21/19/15 1) The cleanliness classes specified for the components must be adhered to in hydraulic s
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