Распределительный высокодинамичный картриджный клапан с пилотным управлением, со встроенной электроникой (OBE) 3WRCE...-2X/P

Description Size 32 … 50 Component series 2X Maximum operating pressure 315 bar Maximum flow 2200 l/min Features 3/3-directional cartridge valve Pilot control valve: proportional directional valve Main stage with position control Flexible: – Suitable for position, pressure, force and velocity control Typical applications: - Presses - Die casting machines - Nibbling axes Product description Valves of type 3WRCE are pilot-operated, 3-stage directional high-response cartridge valves. They control the quantity and direction of a flow and are mainly used in control loops. Set-up The valves consist of the following assemblies: 1-stage pilot control valve (1) with two solenoids as electro-mechanical converters and a control spool that is connected to the integrated pilot electronics (6.2) via electrical feedback Second stage (2) for flow control Inductive position transducer (3) the core (4) of which is attached to the main control spool (5) of the second stage Integrated electronics (OBE) (6.1). Function The integrated electronics (OBE) compares command and actual values and the solenoids of the pilot control valve (1) are actuated with a proportional current according to the control deviation. The pilot control valve (1) takes a proportionally controlled position and controls the flow in and out of the control chambers A (7) and B (8) that actuate the main control spool (5) through the closed valve control loop up to 0 control deviation. This means that the stroke of the main control spool (5) is regulated proportionally to the command value. It must be noted that the flow also depends on the valve pressure drop. Valve features The opening point of 0% (symbol V) is set at the factory. Due to the internal setting of the pilot control valve, the pilot pressure is connected to control chamber B (8) in case of a power failure, i.e. the main stage is opened from A to T or the connection P to A is closed. The spring behind the main control spool moves the control spool only into position so that P to A is closed if no pressure is applied (e.g. prior to installation, before the pressures are reapplied after tool change). The integrated control electronics (OBE) feature an offset setting to compensate pilot trimming. Notice: Version “3WRCE” is not recommended for new applications. If version “3WRCE” is used, ports A and P have to be exchanged. Upon request. Type code 01 02 03 04 05 06 07 08 09 10 11 12 13 14 3 WRCE ‒ 2X / P G24 K31 / * 01 3 main ports 3 02 Directional high-response cartridge valve, pilot-operated, with integrated electronics (OBE) WRCE 03 Size 32 32 Size 40 40 Size 50 50 04 Control spool in spool design – zero overlap (+0.5 … +1.5%) V Control spool in spool design – positive overlap 10 … 13% E Rated flow ( Δp = 5 bar) 05 Size 32 250 l/min 1) 250 290 l/min 2) 290 Size 40 410 l/min 1) 410 460 l/min 2) 460 Size 50 620 l/min 1) 620 720 l/min 2) 720 Flow characteristic 06 Linear L Linear with linear fine control range P 07 Component series 20 ...