SV Hydraulic Threaded Cartridge Solenoid Directional Valve SV3-10-0-0-24DG SV3-10-OP-0-24DG SV3-10-0P-0-24DG

Technical Data of SV3-10-0-0-24DG Threaded Cartridge Electromagnetic Directional Control Valve
SV3-10-0-0-24DG is a 2-position 2-way threaded cartridge solenoid directional control valve (normally open type), with a rated pressure of 21MPa and a maximum flow rate of approximately 45.4L/min. It is suitable for pilot control and on-off switching in medium and small-sized hydraulic systems. The following is a detailed explanation from multiple dimensions and includes the complete model of the SV series.
I. Model Analysis (SV3-10-0-0-24DG)
Model segment: Meaning
The basic code of SV3:3 series threaded cartridge electromagnetic directional control valve is suitable for medium and small flow hydraulic circuits
10: Rated flow specification, maximum flow approximately 45.4L/min (12gpm)
0: Valve core center function/control mode, here it is the normally open type (NO)
0: Additional functions/Installation adaptation tags, commonly indicating no special additional functions
24DG: Electromagnet specification, 24V DC DC voltage, DG is the coil type/seal compatibility code
Supplementary: The suffix may include installation interface, sealing material, wiring method, etc. The suffix markings of different manufacturers may vary slightly, but the core parameters are universal.
Ii. Working Principle
This valve is a pilot-operated electromagnetic cartridge directional control valve. The core is the coordinated control of the valve core’s operation by electromagnetic force and spring force.
When powered on: The 24V DC coil generates electromagnetic force, pushing the pilot valve core to move, controlling the pressure change in the control chamber, and driving the main valve core to switch to the conducting position, thus achieving the connection of the oil circuit.
When power is cut off: The electromagnetic force disappears, the reset spring pushes the valve core to reset, the oil circuit is cut off, and the initial normally open/normally closed state is restored.
The threaded cartridge structure is connected by threads between the valve body and the valve block, ensuring reliable sealing and high integration, and is suitable for the compact layout of hydraulic systems.
Iii. Core Features
Compact structure: The threaded insertion design makes it small in size and light in weight, reducing system pipelines and leakage points, and facilitating integration into valve blocks.
Rapid response: Electromagnetic pilot drive, high switching frequency, short response time, suitable for high-frequency on-off control conditions.
High-pressure compatibility: Rated pressure 21MPa (3000psi), short-term peak up to 25MPa, compatible with medium and high-pressure hydraulic systems.
Strong versatility: Compatible with mineral hydraulic oil, standard coil interface, quick replacement, sealing parts compatible with oil temperature ranging from -20 ℃ to 80℃.
Easy maintenance: Plug-in installation, no need to disassemble the entire circuit during disassembly and assembly, high efficiency in fault detection and replacement.
Iv. Attributes and Parameters (Typical Values)
Attribute: Parameter
Valve type: 2-position 2-way threaded cartridge solenoid directional control valve (normally open type)
Rated pressure: 21MPa
Maximum pressure: 25MPa
Maximum flow rate :45.4L/min (12gpm)
Control voltage :24V DC (fluctuation range ±10%)
Applicable medium: Mineral hydraulic oil (viscosity 5-1500cSt)
Working oil temperature :-20℃ to 80℃
Installation method: Threaded insertion (standard conical thread/straight thread)
Valve core material: High-strength alloy steel, surface hardening treatment
Sealing material: Nitrile rubber (NBR), compatible with conventional hydraulic oil
V. Functions and Roles
Oil circuit on-off: Controls the connection and disconnection of hydraulic branches to achieve the start, stop, pressure holding or unloading of actuating elements.
Pilot control: As a pilot control valve for the main valve, it controls the movement of the main valve core and is suitable for the stepwise control of complex circuits.
Safety protection: In conjunction with pressure relays and other components, it can cut off the oil circuit when the system is overpressurized, protecting components such as the hydraulic pump and cylinder.
Circuit switching: It is used for oil circuit switching in multi-branch hydraulic systems, adapting to the multi-action switching requirements of equipment.
Vi. Precautions for Use
Medium cleaning: The cleanliness of the hydraulic oil should reach NAS grade 9 or above. The filter element should be replaced regularly to prevent impurities from getting stuck in the valve element.
Voltage matching: Strictly compatible with 24V DC power supply to avoid coil burnout or abnormal operation caused by overvoltage/undervoltage.
Installation specifications: For threaded connections, apply sealant or use sealing gaskets. The torque should meet the standard to prevent leakage. The insertion depth should be in place to prevent the valve core from getting stuck.
Oil temperature control: The working oil temperature should be controlled between -20 ℃ and 80℃. Preheat at low temperatures and enhance heat dissipation at high temperatures to prevent the aging of sealing parts.
Frequency limit: Avoid operating beyond the rated switching frequency to prevent coil overheating and valve core wear, thereby extending the service life.
Maintenance inspection: Regularly check the insulation of the coil and the condition of the sealing parts. Replace the components in time if leakage or jamming is found.
Vii. Application Scenarios and Compatible Models
Usage scenarios
Hydraulic power unit: Oil circuit on-off and pilot control for small and medium-sized power units.
Auxiliary action control circuits for construction machinery: small excavators, loaders and rollers.
Agricultural machinery: Hydraulic steering, lifting and other circuit control for tractors and harvesters.
Light industrial machinery: Branch control for ejection, mold adjustment, etc. of injection molding machines, strapping machines, and bending machines.
Vehicle hydraulics: On-off control of lifting and steering circuits for forklifts and aerial work platforms.
Compatible models (Typical)
Hydraulic systems for forklifts and small loaders of 3.5 tons and below.
Neutron and ejection circuits for small injection molding machines (clamping force ≤1000kN).
Hydraulic actuators for hand-guided tractors and small combine harvesters.
Power unit control circuits for hydraulic lifting platforms and small lifting equipment.
Viii. Complete List of SV Series Models (Common Basic models, Excluding suffixes)
SV3 Series (Medium and Small flow)
SV3-06-0-0, SV3-10-0-0, SV3-16-0-0, SV3-20-0-0, SV3-25-0-0
SV4 Series (Medium Flow)
SV4-32-0-0, SV4-40-0-0, SV4-50-0-0, SV4-63-0-0
SV5 Series (Medium and High traffic)
SV5-80-0-0, SV5-100-0-0, SV5-125-0-0
Derivative models of electromagnetic specifications (examples)
SV3-10-0-0-24DG, SV3-10-0-0-230AG, SV3-10-0-2-2G-12DG, SV3-10-CM-0-24DG