JTEKT pneumatic dual solenoid valve AD-SL231DE-916D-da3

NegotiableUpdate on 05/13

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Nature of the Manufacturer: Producers

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Overview

JTEKT pneumatic dual solenoid valve AD-SL231DE-916D-da3 Fengxing TOYOOKI air switching valve is widely used to control the clutch and brake combination of small, medium, and high-speed mechanical presses, as well as the separation clutch and brake of large presses and three-dimensional transfer mechanical presses.

Product Details

JTEKT pneumatic dual solenoid valve AD-SL231DE-916D-da3Fengxing TOYOOKI

detailed explanation

JTEKT (formerly known as TOYOOKI Fengxing)AD-SL231DE-916D-DA3 is a dual safety air electromagnetic switching valve designed specifically for heavy machinery such as punching machines. Its core function is to accurately control the on/off of pneumatic clutches and brakes. With high response and protection characteristics, it is widely used in the safety control circuit of medium and large mechanical presses and high-speed punching machines, and is a key pneumatic component to ensure the safe and stable operation of equipment.

1、 Model meaning

JTEKT气动双联电磁阀AD-SL231DE-916D-da3

analysis

The codes for each part of this model correspond to clear product specifications, making it easy to quickly identify and adapt to different scenarios. The specific analysis is as follows:

AD-SL231DECore model, clarify the basic attributes of the product

AD: Pneumatic directional control valve, indicating that the core function of the product is to control the flow of compressed air
S: Electromagnetic drive method, using electromagnetic coil to control the valve core action, with rapid response
L: Direct installation, can be directly fixed to the equipment air interface, saving installation space
231: Airflow symbol, representing a two position three-way structure, suitable for single loop control requirements
D: Dual valve structure, dual coil and dual spool design, with safety redundancy function
E: External pilot type, different from the standard internal pilot D-type, suitable for specific pressure control scenarios

916D: Dimensions and Design Specifications

9: Valve body size specifications, corresponding to specific installation dimensions and structural strength
16: Valve port diameter, corresponding to interface specification Rc1-1/4 (PT taper pipe thread), to ensure high flow ventilation requirements
D: Design number, representing the specific design version under this size specification

DA3Electrical interface and voltage specifications

D: DIN standard interface, compliant with international general electrical wiring standards, suitable for conventional control cabinets
A3: The rated voltage is AC110V, suitable for most industrial equipment power supply scenarios, and attention should be paid to matching with the control circuit voltage

JTEKT pneumatic dual solenoid valve AD-SL231DE-916D-da3Fengxing TOYOOKI

2、 Core technical parameters

The parameters directly determine the adaptability and operational performance of the product, and it is necessary to strictly follow the parameter range for use, as follows:

Applicable media: filtered and dried compressed air, inert gas (gases containing oil, water, or impurities are strictly prohibited)
Operating pressure: 0.2~0.7 MPa (Exceeding this range can cause valve core wear, seal failure, and affect service life)
Operating temperature: 5~40 ℃ (to avoid high temperature causing seal aging and low temperature causing valve core jamming)
Response time: Power on (ON) ≤ 0.033 seconds, power off (OFF) ≤ 0.010 seconds, ensuring precise control of high-speed punching machines
Action frequency: within 3 times per second. Frequent overclocking will accelerate the wear of the coil and valve core
Protection level: The coil part is IP67 (high waterproof and dustproof), which can adapt to humid industrial environments, but cannot be soaked for a long time
Connection diameter: The P, A, and E ports are all Rc1 1/4 (PT taper pipe thread), and attention should be paid to sealing during wiring to prevent air leakage
Effective cross-sectional area: P → A is 280 mm ², A → E is 320 mm ², ensuring sufficient ventilation and reducing pressure loss
Mass: Approximately 3.0 kg, ensure firm fixation during installation to avoid vibration affecting the stability of the valve body

3、 Main functions and features

Safe dual structureThe dual coil and dual valve core redundancy design ensures that there will be no pressure relief in the event of a single coil failure, which meets the safety standards for punching machines (Article 56 of the mechanical structure specifications) and effectively avoids safety accidents caused by unexpected equipment movements. It is suitable for punching scenarios with high safety requirements.
High response and high precisionAdopting a high flow exhaust design, the valve response speed is fast, which can effectively control the fluctuation of the stopping angle, ensure the machining accuracy of high-speed punching machines, reduce the scrap rate of workpieces, and adapt to the requirements of precision stamping processes.
High protection and low power consumptionThe coil adopts IP67 waterproof and dustproof design, which can adapt to humid and dusty industrial environments and reduce the occurrence rate of failures; The new low-power coil design saves more than 30% electricity compared to traditional models, and long-term use can reduce energy consumption costs.
Easy maintenanceStandard manual operation buttons for daily inspection, debugging, and emergency manual control. Basic inspections can be completed without disassembling the valve body, reducing maintenance time; Modular design of valve body structure, convenient replacement of vulnerable parts.
Clear adaptation scenariosMainly used for pneumatic clutch/brake safety control circuits in medium and large mechanical presses and high-speed punching machines, it can also be used in other pneumatic control scenarios with high requirements for response speed and safety (parameter adaptation needs to be confirmed).

4、 Specification Confirmation Checklist (JIS Standard)

Before procurement and installation, the following specifications need to be checked to ensure they match the equipment requirements appropriately:

Material: The valve body is made of aluminum alloy die-casting, the valve core/spring is made of stainless steel, and the seal is NBR (oil resistant, wear-resistant, suitable for compressed air scenarios)
Filling fluid: None (dry solenoid valve, no need to add filling fluid to avoid contamination of the gas path)
Thread specification: JIS Rc1 1/4 (PT taper pipe thread), matching with the equipment air interface to avoid air leakage
Voltage: AC110V 50/60Hz. Before wiring, it is necessary to confirm the control circuit voltage to avoid voltage mismatch and coil burnout
Installation method: Direct installation (L), ensure that the valve body is firmly fixed during installation to avoid vibration affecting the valve core action
Pilot mode: External pilot (E), which needs to be matched with an external pilot air path to ensure the normal operation of the valve
Wiring form: DIN 43650 interface (DA3), compatible with conventional industrial wiring specifications, insulation treatment is required during wiring

JTEKT pneumatic dual solenoid valve AD-SL231DE-916D-da3Fengxing TOYOOKI

5、 Precautions for use and maintenance

To ensure the product's service life, equipment operation safety, and control accuracy, the following precautions must be strictly followed:

Preparation before installation: Check the appearance of the valve body for any transportation damage, verify that the model and parameters (voltage, interface, pressure range) are consistent with the equipment requirements; Before taking over, compressed air should be used to blow away dust, iron filings, and sealing debris in the pipeline to prevent impurities from entering the valve body and causing valve core jamming and wear. It is recommended to install a filter with an accuracy of ≤ 50 μ m in front of the valve.
Installation operation: The valve body should be firmly fixed to avoid loose joints and component detachment caused by vibration during equipment operation; It is recommended to install the coil facing upwards to prevent damage from water ingress. Inverted installation (with the coil facing downwards) is prohibited to prevent seal failure; When wrapping the sealing tape around the threaded connection, it is necessary to leave 1.5-2 turns of thread space to prevent glue or sealing tape debris from entering the air path and contaminating the components.
Electrical wiring: Before wiring, the gas and power sources must be cut off to prevent personal injury caused by electrical shock or misoperation; Check if the insulation layer of the coil is damaged to avoid short circuiting and burning out the coil; When wiring for long distances, voltage drop should be considered. If necessary, increase power capacity or shorten cable length to ensure stable voltage within the range of AC110V ± 10%.
Operation process: It is strictly prohibited to use under excessive pressure, temperature, or operating frequency to avoid accelerated aging of valve cores and seals; If abnormal noises, leaks, or unstable pressure gauge pointers are found in the valve body during operation, the machine should be stopped immediately for inspection and troubleshooting before restarting. It is strictly prohibited to operate with defects; When the flywheel is running, manual operation of the solenoid valve is prohibited to avoid personal injury caused by the slider falling.
Air source requirements: Compressed air must be filtered and dried to remove moisture, oil, and impurities. In humid environments, air dryers and automatic drains should be installed to prevent moisture and oil from entering the valve body, causing component rust and seal failure; Adjust the pressure to the required value of the equipment through a pressure reducing valve to avoid damage to the valve body caused by overpressure operation.
Daily maintenance: Check for air leaks daily (soap solution can be used for detection), check the flexibility of manual operation buttons and coil temperature weekly (to avoid overheating), check the wear of seals, the tightness of wiring terminals, and the accumulation of impurities in the valve body monthly; Regularly clean filters and pipelines to prevent dirt from drying up and affecting valve function. The specific cycle can be adjusted according to the operating conditions of the equipment. It is recommended to conduct a comprehensive inspection every 3 months and replace vulnerable sealing parts every 6 months.
Maintenance taboos: Before maintenance or disassembly, the air source and power supply must be cut off, and the residual compressed air in the system must be emptied. Only after confirming that there is no pressure can the operation be carried out, and the "LOTO" procedure must be strictly followed; Non professionals are prohibited from disassembling precision components of valve bodies (such as valve cores) to prevent functional failure caused by improper assembly; When replacing the seal, it is necessary to apply the specified lubricating oil. It is strictly prohibited to use oil, spindle oil and other harmful oils to the seal to avoid damage to the seal.
Environmental requirements: Avoid use in environments with corrosive gases, strong magnetic fields, high temperatures (over 40 ℃), or severe vibrations. If necessary, protective measures such as installing protective covers and insulation layers should be taken; The interior of the electrical cabinet should be kept dry to prevent damage to electrical components such as coils caused by moisture; When the machine is shut down for a long time, it is necessary to empty the residual air in the valve body, carry out rust prevention treatment, and thoroughly check the valve status and electrical connection before restarting.
Spare parts and emergency: It is recommended to equip spare valve bodies and vulnerable parts (seals, coils) to avoid affecting production in case of failure; If the valve fails to operate, you can first check the power supply, coil, and air source pressure, gradually troubleshoot the problem, and in emergency situations, use manual operation buttons to control and ensure the safe shutdown of the equipment.

JTEKT pneumatic dual solenoid valve AD-SL231DE-916D-da3Fengxing TOYOOKI