Manufacturing
From October 28th to 31st, 2025, the 29th Asian International Power Transmission and Control Technology Exhibition (PTC ASIA) opened grandly at the Shanghai New International Expo Center. As a benchmark event for the power transmission industry in the Asia-Pacific region, this exhibition brings toge
From October 28th to 31st, 2025, the 29th Asian International Power Transmission and Control Technology Exhibition (PTC ASIA) opened grandly at the Shanghai New International Expo Center. As a benchmark event for the power transmission industry in the Asia-Pacific region, this exhibition brings toge
READ MORE4What are the characteristics of the WEH16 electro-hydraulic directional valve?
As a spool-type directional valve controlled by a solenoid valve as a pilot, the 4WEH16 electro-hydraulic directional valve has a series of significant characteristics. The following is a detailed introduction in five aspects: structure, performance, control method, additional devices and application areas: 1. Structural characteristics Plate connection: The 4WEH16 electro-hydraulic directional valve adopts a plate connection, and its connection dimensions comply with DIN24340A and ISO4401 standards, making it easy to install and replace. Core components: The valve is mainly composed of a main valve body, a main valve core, one or two return springs, and a pilot solenoid valve with one or two electromagnets. The main valve core is held in the middle position by spring force or hydraulic pressure, and the pilot solenoid valve controls the direction of the main valve. 2. Performance characteristics and high reliability: 4WEH16 electro-hydraulic directional valve has high reliability and can work stably under various harsh working conditions. Fast reversing response: The valve has fast reversing response and sensitive response, which can meet the needs of high-speed automated production lines.
As a spool-type directional valve controlled by a solenoid valve as a pilot, the 4WEH16 electro-hydraulic directional valve has a series of significant characteristics. The following is a detailed introduction in five aspects: structure, performance, control method, additional devices and application areas: 1. Structural characteristics Plate connection: The 4WEH16 electro-hydraulic directional valve adopts a plate connection, and its connection dimensions comply with DIN24340A and ISO4401 standards, making it easy to install and replace. Core components: The valve is mainly composed of a main valve body, a main valve core, one or two return springs, and a pilot solenoid valve with one or two electromagnets. The main valve core is held in the middle position by spring force or hydraulic pressure, and the pilot solenoid valve controls the direction of the main valve. 2. Performance characteristics and high reliability: 4WEH16 electro-hydraulic directional valve has high reliability and can work stably under various harsh working conditions. Fast reversing response: The valve has fast reversing response and sensitive response, which can meet the needs of high-speed automated production lines.
READ MORECan the superimposed hydraulic control check valve be adjusted?
The superimposed hydraulic control check valve itself does not have the active adjustment function of flow or pressure, but it can indirectly achieve the adjustment effect through system design. Its core function is to control the unidirectional flow of oil and allow reverse flow under certain conditions, rather than directly adjusting flow or pressure parameters. The following is a specific analysis: The core function of the superimposed hydraulic control check valve is one-way cut-off: ensuring that oil can only flow in one direction, and is blocked in the opposite direction to avoid reverse flow or backflow. Hydraulic control opening: By introducing external control oil pressure, the reverse cutoff can be actively opened to allow reverse flow of oil. How to realize the adjustment function Although the superimposed hydraulic control check valve itself does not have the adjustment function, it can indirectly achieve the adjustment effect in the following ways: Use in combination with a regulating valve: In the hydraulic system, the superimposed hydraulic control check valve can be used in combination with other regulating valves (such as relief valves, throttle valves, etc.) to indirectly affect the work of the superimposed hydraulic control check valve by adjusting the parameters of other valves.
The superimposed hydraulic control check valve itself does not have the active adjustment function of flow or pressure, but it can indirectly achieve the adjustment effect through system design. Its core function is to control the unidirectional flow of oil and allow reverse flow under certain conditions, rather than directly adjusting flow or pressure parameters. The following is a specific analysis: The core function of the superimposed hydraulic control check valve is one-way cut-off: ensuring that oil can only flow in one direction, and is blocked in the opposite direction to avoid reverse flow or backflow. Hydraulic control opening: By introducing external control oil pressure, the reverse cutoff can be actively opened to allow reverse flow of oil. How to realize the adjustment function Although the superimposed hydraulic control check valve itself does not have the adjustment function, it can indirectly achieve the adjustment effect in the following ways: Use in combination with a regulating valve: In the hydraulic system, the superimposed hydraulic control check valve can be used in combination with other regulating valves (such as relief valves, throttle valves, etc.) to indirectly affect the work of the superimposed hydraulic control check valve by adjusting the parameters of other valves.
READ MOREHow to connect the wires to the single-head solenoid reversing valve
The wire connection of the single-head solenoid directional valve needs to be operated according to its voltage type (DC or AC) and specific terminals. The following are detailed steps and precautions: 1. Prepare to confirm the voltage type before wiring. Direct current (DC) solenoid valve: It is necessary to distinguish the positive and negative poles (usually marked '+' and '-'). Reverse connection may cause non-operation or damage. AC solenoid valve: No need to distinguish polarity, live and neutral wires can be connected arbitrarily. Check the voltage value: Make sure the power supply voltage is consistent with the rated voltage of the solenoid valve (such as 24V DC, 220V AC, etc.). Identify the wiring terminal of the two-wire solenoid valve: usually the power wire (positive/live wire, negative/neutral wire), some with grounding terminal (yellow and green two-color wire). Three-wire solenoid valve: may include common terminal (COM), normally open terminal (NO), normally closed terminal (NC), which need to be connected according to the control logic. Solenoid valve with indicator light: The indicator light wire must be connected according to polarity, otherwise it will not light up but will not affect the function.
The wire connection of the single-head solenoid directional valve needs to be operated according to its voltage type (DC or AC) and specific terminals. The following are detailed steps and precautions: 1. Prepare to confirm the voltage type before wiring. Direct current (DC) solenoid valve: It is necessary to distinguish the positive and negative poles (usually marked '+' and '-'). Reverse connection may cause non-operation or damage. AC solenoid valve: No need to distinguish polarity, live and neutral wires can be connected arbitrarily. Check the voltage value: Make sure the power supply voltage is consistent with the rated voltage of the solenoid valve (such as 24V DC, 220V AC, etc.). Identify the wiring terminal of the two-wire solenoid valve: usually the power wire (positive/live wire, negative/neutral wire), some with grounding terminal (yellow and green two-color wire). Three-wire solenoid valve: may include common terminal (COM), normally open terminal (NO), normally closed terminal (NC), which need to be connected according to the control logic. Solenoid valve with indicator light: The indicator light wire must be connected according to polarity, otherwise it will not light up but will not affect the function.
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