Description Size 10, 6 Component series 4X Maximum operating pressure 315 bar Maximum flow (NG6) 60 l/min Maximum flow (NG10) 100 l/min Features Cartridge valve 4 pressure ratings 4 optional adjustment types: • Rotary knob • Sleeve with hexagon and protective cap • Lockable rotary knob with scale • Rotary knob with scale Product description Pressure valves type DB..K.. are pilot-operated pressure relief valves for block design installation. They are used for system pressure limitation. The system pressure can be set via the adjustment type (4). In the initial position the valves are closed. The pressure in main port 1 acts on the spool (1). At the same time, pressure is applied to the spring-loaded side of the spool (1) via nozzle (2) and to the pilot poppet (6) via nozzle (3). If the pressure in main port 1 exceeds the value set at spring (5), the pilot poppet (6) opens. Hydraulic fluid flows from the spring-loaded side of the spool (1) via nozzle (3) and channel (7) into the main port 3. The resulting pressure drop moves the spool (1) and thus opens the connection from main port 1 to 2 while maintaining the pressure set at spring (5). Die pilot oil return from the two spring chambers is effected externally, via main port 3. Notice! Counter pressures (main port 3) add up to the set pressure. Type DB 10 K2-4X/.YV Type code 01 02 03 04 05 06 07 08 09 DB K – 4X / Y V * 01 Pressure relief valve, pilot controlled DB 02 Size 6 6 Size 10 10 03 Cartridge valve K Adjustment type 04 Rotary knob 1 Sleeve with hexagon and protective cap 2 Lockable rotary knob with scale 3 1) Rotary knob with scale 7 05 Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) 4X Pressure rating 06 Set pressure up to 50 bar 50 Set pressure up to 100 bar 100 Set pressure up to 200 bar 200 Set pressure up to 315 bar 315 07 Internal pilot oil supply, external pilot oil return Y Seal material 08 FKM seals (other seals upon request) V Observe compatibility of seals with hydraulic fluid used. 09 Further details in the plain text * 1) H-key with material no. R900008158 is included in the scope of delivery. Technical data general Size 6 10 Weight (approx.) kg 0.15 0.2 Installation position any Ambient temperature range °C -20 … +80 hydraulic Size 6 10 Maximum operating pressure 1) Port P bar 315 Maximum adm. counter pressure 1) Port T bar 315 Port Y bar 315 Maximum set pressure Port P bar 50 100 200 315 Maximum flow l/min 60 100 Hydraulic fluid see table Hydraulic fluid temperature range °C -20 … +80 Viscosity range mm²/s 10 … 800 Maximum admissible degree of contamination of the hydraulic fluid 2) Class 20/18/15 according to ISO 4406 (c) 1) Attention! The maximum operating pressure is added up from the set pressure and the return flow pressure. 2) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection o
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