Description Size 25 … 50 Component series 1X Maximum operating pressure 315 bar Maximum flow 2250 l/min Features 3-way directional cartridge valve Control spool with anti-rotation feature and control edges in servo-type quality Pressure-resistant up to 315 bar Control line A of the pilot control valve according to X generally required Dynamic reset "Z" (B to Z) possible for version "F" (only NG25 and 50) With inductive position transducer, position-controlled through the external pilot control valve and the valve electronics Pilot control valve at the manifold externally assigned Hysteresis Flow characteristic, progressive with fine control edge Product description In connection with pilot control valves, valves of type 3WRCBH are pilot-operated directional high-response cartridge valves with 2 control edges in servo quality, P–A / A–T. They control size and direction of a flow. The transition was designed by means of fine control edges for minimum leakage at high and linear pressure amplification. The control spool position is deflected by the pilot oil of the pilot control valve. In case X is unloaded and/or in case of power failure, the load pressure in A and the internal spring result in a control spool reset (A–T). The control spool position is recorded by an inductive position transducer. Its signal and the valve electronics allow for position control via a pilot control valve. An additional pilot oil port Z (only version "F" and NG25 and 50) allows for fast reset in case of low load in port A. In this connection, the pilot control valve must be connected to A–X and B–Z. For the external position control, the following components are required: Pilot control valve type 4WRP(E)H 6 (separate order, see "Accessory") Integrated electronics (OBE) or external control electronics (separate order, see "Accessory") Valve block (customer side). The pilot oil guidance in the valve block and the electrical connection design the pilot-operated valve function for control tasks in the system. In most cases, this is a process for velocity and pressure control. The process controllers of the system generate the valve signal for the control loop. Main stage Type 3WRCBH . VF…Z Type code 01 02 03 04 05 06 07 08 09 10 11 12 3 WRCB H V M ‒ 1X / M * 01 3 main ports 3 02 Directional high-response cartridge valve, pilot-operated WRCB 03 Hydraulic actuation H 04 Size 25 25 Size 32 32 Size 50 50 05 Control spool with zero overlap V Area ratio at the control spool (determined at the factory) 06 1:1 no code 1:1,5 F Rated flow ( Δp = 5 bar/control edge) 07 Size 25 65 l/min 65 190 l/min 190 Size 32 380 l/min 380 Size 50 300 l/min 300 750 l/min 750 Flow characteristic 08 Inflected characteristic curve, progressive with linear fine control range M 09 Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) 1X Pilot oil port 10 Without no code Additional pilot oil port (Only version "F" and NG25 and 50) Z Seal material (observe compatibility o
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