Description Size 10 … 27 Component series 2X Maximum operating pressure 350 bar Maximum flow 1000 l/min Nominal flow 40 … 430 l/min Features Pilot-operated 4/3 high-response directional valves with control spool and sleeve in servo quality Integrated electronics (OBE) with position controller for pilot and main stage, calibrated in the plant Main stage in servo quality with position feedback Flow characteristics M = Progressive and fine control edge P = Inflected characteristic curve L = Linear Product description Valves of type 4WRVE are pilot-operated high-response valves in servo quality. Type code 01 02 03 04 05 06 07 08 09 10 11 12 13 14 4 WRV E ‒ 2X / G24 K0 / B5 M * 01 4 main ports 4 02 High-response directional valve, pilot operated WRV 03 With integrated electronics (OBE) E 04 Size 10 10 Size 16 16 Size 25 25 Size 27 27 1) 05 Symbols; for the possible version, see "Symbols/Circuit diagrams" V, V1 Rated flow ( Δp = 5 bar) 06 Size 10 40 l/min 40 2) 55 l/min 55 3) 70 l/min 70 2) 85 l/min 85 3) Size 16 90 l/min 90 2) 120 l/min 120 3) 150 l/min 150 2) 200 l/min 200 3) Size 25 300 l/min 300 2) 370 l/min 370 3) Size 27 430 l/min 430 1) 3) Flow characteristic 07 Progressive with linear fine control range M Inflected characteristic curve, linear (inflection at 40 %) P Linear L 08 Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) - Size 6 2X Supply voltage of the control electronics 09 Direct voltage 24 V G24 Pilot oil supply and return 10 External pilot oil supply, external pilot oil return no code Internal pilot oil supply, external pilot oil return E Pilot oil supply internal, pilot oil return internal ET External pilot oil supply, internal pilot oil return T Electrical connection 11 Without mating connector; connector DIN 43563-AM6 K0 Electrical interface 12 Command value ±10 V B5 Seal material 13 NBR seals M 14 Further details in the plain text * 1) NG27 is a high-flow version of NG25, the connection bores P, A, B, T in the main stage are designed with Ø32 mm. Deviating from the standard ISO 4401-08-08-0-05, ports P, A, B, T can be bored in the manifold with a maximum of Ø30 mm. So these valves offer higher flow values QA : QB 2) QN: flow characteristic P 3) QN: flow characteristic M or L Technical data general Type 4WRVE Size 10 16 25 27 Component series 2X Design Directional spool valve, pilot-operated Type of actuation High-response directional valve NG6 with position control for pilot control and main valve Anschlussart For subplate mounting: Porting pattern according to ISO 4401 Installation position Any Earth kg 8 10.4 18.2 Ambient temperature range °C -20 … +50 hydraulic Type 4WRVE Size 10 16 25 27 Maximum operating pressure bar 350 Maximum operating pressure Port T bar 250 Port Y bar 250 Port X bar 250 Maximum operating pressure Port P External pilot oil supply bar 350 Anschluss A bar 350 Port B bar 350 Maximum operating pressure Port P Internal pilot oil supply bar 250 Anschluss A bar 250 Port B
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