Rexroth 4WRZE32W6-520-7X/6EG24N9K31/F1D3M

REXROTH ratiovalve力士乐4 WRZE32W6-520-7X/6EG24N9K31/F1D3MNingbo Bingsheng has its own joint venture procurement company in Europe and America, which directly purchases from European sources and sells domestically. It can provide proof of origin and customs declaration.

Ningbo Bingsheng

Yan Gong

REXROTHproportionvalve力士乐4 WRZE32W6-520-7X/6EG24N9K31/F1D3M

Proportional control valves are mainly used for open-loop control. The output of proportional control valves is proportional to the input signal, and the magnetic force generated by the electromagnetic coil inside the proportional control valve is proportional to the current.

In traditional hydraulic control valves, hydraulic pressure can only be controlled at a constant value. For example, the pressure valve operates at a set pressure, the flow valve maintains the set flow rate, and the directional valve switches the direction of fluid flow on/off. Therefore, the system functions composed of these control valves are subject to some limitations. With the advancement of technology, many hydraulic systems require that flow and pressure can continuously or proportionally change with the input signal of the control valve. Although hydraulic servo systems can meet their requirements and have high accuracy, for most industries, they do not require the system to have such high quality. They hope to be low-cost, reliable, and easy to maintain under certain control performance conditions. Therefore, proportional control valves have developed in this context.

Proportional control valves can be divided into three categories: pressure control valves, flow control valves, and directional control valves.

Pressure control valve: The manual adjustment device that replaces the guided relief valve with a proportional solenoid valve becomes a guided proportional relief valve, and its output hydraulic pressure is continuously or proportionally controlled by the input signal.

Flow control valve: a manually adjustable device that uses a proportional solenoid valve instead of a throttle valve or speed regulating valve to control the throttle opening of the throttle valve or speed regulating valve with an input signal, which can continuously or proportionally control its output flow. Therefore, the opening of the throttle can be determined by the voltage of the input signal.

Directional control valve: The proportional solenoid valve replaces the general solenoid valve of the directional valve to form a direct acting proportional directional valve. Its sliding shaft can not only be rotated, but also the stroke of rotation can be continuously or proportionally changed. Therefore, the oil passage area between the connecting oil ports can also be continuously or proportionally changed. Therefore, the proportional directional control valve can not only control the direction of movement of the actuator, but also control its speed.

1、 Product type and core functions

1. Product positioning

• belong toElectro-hydraulic proportional directional valveIntegrated electronic control components (OBE) are used to control the direction and flow rate of hydraulic oil.

• Supporting proportional solenoid operation, it can achieve linear adjustment of flow rate and is suitable for hydraulic systems that require precise flow control.

2. structural characteristics

• Secondary pilot designThe main valve core is driven by a pilot control valve, and the proportional movement of the main valve core is achieved by adjusting the pilot oil pressure through a proportional solenoid.

• Integrated electronic componentsSupport electrical signal input, fast response speed, suitable for dynamic control scenarios.

• Manual emergency operationWhen the coil is powered off, the valve core can be manually moved, but safety risks should be noted.

2、 Technical parameters

1. Key specifications

• Nominal Diameter：25mm（DN25）。

• work pressure350 bar (some models support higher pressure environments).

• flow rangeUp to 2800L/min (depending on system configuration).

• electrical interfaceSupports 24V DC or higher voltage proportional electromagnets.

2. Installation and compatibility

• Installation methodBottom plate installation, in accordance with ISO 4401 standard hole diagram.

• Pressure environmentSuitable for both normal and high pressure conditions.

3、 Application scenarios

1. Typical industries

• injection molding machineUsed for mold opening and injection control.

• Metallurgy and SteelControl the hydraulic system of the rolling mill or straightening machine.

• Testing machines and construction machineryDynamic load testing or hydraulic drive for heavy equipment.

• Petroleum and MiningDisc brake system or hydraulic excavator.

2. Functional advantages

• High response speedProportional control reduces energy loss and is suitable for frequent commutation scenarios.

• modular designCan be integrated with other Rexroth valve blocks to simplify system design