Selecting an electromagnetic actuator for a hydraulic directional valve requires more than matching the coil voltage. Valve size, magnetic force, stroke, electrical configuration, mounting interface, operating frequency, protection level, and installation environment can all influence whether the solenoid performs reliably in actual equipment.
For hydraulic machinery manufacturers, OEMs, system integrators, and maintenance teams, understanding these parameters before purchasing can reduce compatibility issues and avoid unnecessary valve or coil replacement. The DSG Series Solenoids for Valves are developed for hydraulic electromagnetic directional valves and provide configurations for both 6-diameter and 10-diameter valve applications.
The series includes DSG-02-A, DSG-02-D, DSG-03-A, and DSG-03-D models, covering AC and DC wet-type solenoid requirements for industrial hydraulic control systems.
Understanding the DSG Model Structure
The model designation provides useful information when identifying the appropriate solenoid.
The “02” and “03” portions distinguish the applicable hydraulic valve specifications. DSG-02 models are intended for 6-diameter hydraulic directional valves, while DSG-03 models are designed for 10-diameter valves.
The letter following the number identifies the electrical type. “A” refers to an AC wet-type solenoid, whereas “D” identifies a DC wet-type solenoid.
This means that DSG-02-A represents an AC solenoid designed for a 6-diameter valve, while DSG-03-D represents a DC solenoid for a 10-diameter valve.
Understanding this naming structure allows buyers to narrow down the product family before checking voltage, force, stroke, dimensions, and other detailed specifications.
DSG-02 and DSG-03: Choosing the Appropriate Valve Size
The difference between the two model groups involves more than the external dimensions of the solenoid. Valve size affects the required electromagnetic force, coil structure, mechanical interface, and operating characteristics.
The DSG-02 series is intended for 6-diameter hydraulic directional valves. Depending on the specific configuration, the rated suction force can reach 30 N. The rated travel is 3 mm, while the full stroke is generally 4 mm.
The DSG-03 series is intended for 10-diameter hydraulic directional valves. Its listed configurations can provide a rated suction force of up to 90 N. The rated travel remains 3 mm, while the full stroke may be 4 mm or 6 mm, depending on the selected configuration.
Higher magnetic force does not automatically make one model a suitable replacement for another. A DSG-03 solenoid should not be selected for a 6-diameter valve simply because its suction force is greater.
For replacement projects, the original valve model, valve caliber, existing solenoid specification, voltage, stroke, and mounting dimensions should be checked together before placing an order.
AC and DC Solenoid Options
Electrical matching is another fundamental part of solenoid selection. The DSG family provides both AC and DC wet-type configurations for different control systems.
The DSG-02-A and DSG-03-A models are available for AC applications, including AC110V and AC220V configurations. DSG-02-D and DSG-03-D are intended for DC systems, with available voltage options including DC24V, DC110V, and DC220V.
The control circuit should be verified before choosing the coil. Using an incorrect voltage can result in inadequate magnetic force, excessive heat generation, unstable valve movement, or failure to switch the hydraulic valve properly.
For equipment using rectified power supplies, the power conversion arrangement should also be reviewed. The stated control configuration supports single-phase bridge full-wave rectification with control voltage up to 220V. Therefore, the actual relationship between the control circuit and coil should be confirmed rather than relying only on a nominal voltage shown on an electrical drawing.
Important Electrical and Mechanical Parameters
A reliable purchasing decision should take several specifications into account simultaneously.
Valve caliber: DSG-02 models are designed for 6-diameter valves, while DSG-03 models correspond to 10-diameter valves.
Electromagnetic force: The listed DSG-02 configurations provide a rated suction force of 30 N, while DSG-03 configurations can reach 90 N according to the supplied specifications.
Stroke: Rated travel is 3 mm. Full stroke varies by configuration and can reach 4 mm or 6 mm for the relevant DSG-03 versions.
Power consumption: Depending on the configuration, listed electrical consumption includes approximately 24 W, 30 W, and 55 VA. This becomes particularly relevant when several solenoids are installed within the same hydraulic control system.
Coil inner-hole diameter: The specified inner-hole diameter is 20 mm for the DSG-02 configurations and 26 mm for the DSG-03 configurations.
These mechanical dimensions should be verified together with the valve interface. Even when the voltage and magnetic force appear suitable, a mismatch in installation dimensions can prevent direct replacement.
Construction for Industrial Hydraulic Environments
Hydraulic machinery can operate in environments where oil mist, dust, moisture, and occasional water splashing are present. Solenoid construction therefore needs to support both electrical performance and practical environmental requirements.
The DSG series uses full-copper coils, supporting electrical conductivity and heat dissipation during operation. This construction is relevant to hydraulic equipment that performs frequent valve switching or operates for extended periods.
The solenoid housing provides an IP65 protection level, offering protection against dust ingress and water jets from applicable directions. However, IP65 does not mean the component is designed for permanent immersion. Installation conditions should always be assessed according to the actual equipment environment.
The DSG solenoids can support continuous and intermittent operating conditions. The specified allowable supply voltage fluctuation is 85% to 110% of rated voltage. Keeping the power supply within the recommended range helps maintain consistent electromagnetic performance.
For equipment with frequent switching cycles, operating frequency should also be considered. The listed specifications allow an operating frequency of up to 12,000 T/h, subject to the specific model and operating conditions.
Applications with Taiwan-Style Hydraulic Valves
Compatibility with an existing hydraulic valve is particularly important when purchasing replacement solenoids. The DSG series is designed for Taiwan-style threaded electromagnetic directional valves in 6-diameter and 10-diameter specifications.
This configuration can be useful for machinery manufacturers and maintenance teams working with Taiwan-made or Taiwan-style hydraulic valve systems. In some cases, replacing the electromagnetic actuator rather than the complete directional valve assembly can provide a more practical maintenance solution, provided that the electrical and mechanical interfaces are compatible.
When requesting a replacement, buyers should ideally provide the original valve model, valve caliber, existing solenoid model, rated voltage, mounting dimensions, and other available technical information. These details allow the supplier to identify the appropriate DSG configuration more efficiently.
Why Factory Supply Can Benefit OEM Buyers
For OEMs and hydraulic equipment manufacturers, component purchasing involves more than technical compatibility. Batch consistency, production capacity, customization, lead time, and shipping arrangements can also influence project execution.
Wuxi Huilifu Intelligent Technology Co., Ltd. specializes in the research, development, manufacture, and sales of electromagnets and electromagnet coils. Its technical background developed from Wuxi Jincheng Powder Metallurgy Co., Ltd., established in 2003, with experience in precision manufacturing and high magnetic permeability materials.
The company operates a production facility of approximately 2,500 square meters, covering R&D, manufacturing, testing, and warehousing functions. Its experience in powder metallurgy and precision forming provides technical support for the development of electromagnets with consistent magnetic characteristics and durable operating performance.
For projects requiring non-standard electromagnetic components, customized solutions can also be considered according to application requirements and technical specifications.
For bulk DSG series orders, factory-direct export supply is available. The stated production lead time for relevant supply arrangements is approximately 15 working days, while export shipments can be arranged through major ports such as Shanghai and Ningbo. Actual production and delivery schedules should be confirmed according to order quantity and project requirements.
What Buyers Should Prepare Before Ordering
Providing complete technical information at the inquiry stage can make the selection process considerably faster. Buyers can prepare the following details:
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Hydraulic valve caliber: 6-diameter or 10-diameter
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Existing valve or solenoid model
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AC or DC power supply
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Rated voltage
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Required electromagnetic force
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Required travel and full stroke
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Power consumption requirements
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Mounting dimensions
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Coil inner-hole diameter
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Working environment
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Continuous or intermittent duty
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Operating frequency
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Required quantity
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Delivery destination and schedule
This information helps prevent one of the most common purchasing mistakes: selecting a solenoid based only on voltage while ignoring the valve size, stroke, magnetic force, or mounting interface.
DSG Solenoids for New Equipment and Replacement Projects
The DSG Series Solenoids for Valves provide a practical range of electromagnetic actuators for hydraulic directional valve applications. With DSG-02 and DSG-03 options, users can address 6-diameter and 10-diameter valve requirements, while AC and DC versions provide flexibility for different control circuits.
The available voltage configurations, magnetic force levels, stroke options, IP65 protection, copper coil construction, and industrial operating characteristics make the series suitable for consideration in hydraulic machinery and equipment where reliable valve actuation is required.
For new hydraulic equipment, the solenoid can be specified during the initial valve and control-system design. For maintenance and replacement applications, the original valve and coil information can be used to determine whether a compatible DSG configuration is available.
Ultimately, successful selection depends on matching the valve caliber, electrical type, rated voltage, electromagnetic force, stroke, dimensions, operating frequency, and environmental conditions rather than focusing on one parameter in isolation.
For OEM manufacturers, hydraulic system integrators, distributors, and maintenance buyers evaluating electromagnetic actuators for industrial directional valves, DSG Series Solenoids for Valves offer multiple configurations for different valve sizes and control requirements, supported by factory manufacturing and customization capabilities from Wuxi Huilifu Intelligent Technology Co., Ltd.
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