Are you currently selecting an air tank drain valve and seeking a product and solution that offers high efficiency and ease of maintenance? Contact Xiamen Jiedeng Machinery. We offer direct-from-factory pricing, provide specific models tailored to various vehicle types, and offer comprehensive guidance on usage and maintenance, along with dedicated after-sales technical support.
The Air tank drain valve for commercial vehicles is installed at the bottom of the air tank, used to remove internal water and oil stains. It is mainly divided into three types: manual, automatic, and electric control.
It purifies the gas path and ensures the stability and safety of the braking system. It is used to discharge water, oil stains and impurities from the tank, preventing pipe rusting, freezing or brake failure.
The Air tank Electric drain valve is an electrically controlled storage cylinder drainage valve. It is controlled by an electric circuit and can be activated automatically at a set time or by pressing a button. No manual operation is required.
It automatically discharges the accumulated water and oil from the storage cylinder, stabilizing the pneumatic braking system of commercial vehicles.
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Manual drain valve |
Automatic drain valve |
Electrical control drain valve |
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1. Installing the air reservoir at the bottom is difficult to maintain. 2. Without a regular maintenance habit, water will gradually accumulate in the air reservoir, and it will keep increasing. 3. If there is no drainage for a long time, it will occupy the volume of the air reservoir, resulting in a reduced capacity for providing air supply, and thus the braking effect will not be satisfactory. |
1. The fluctuation of air pressure causes the valve core to move up and down, achieving automatic drainage. 2. If the air pressure fluctuation is small and cannot drive the valve core to move, it will result in a small drainage volume or no drainage at all. 3. When the water level is too high, the drainage valve fails and there is no way to drain the water. The storage cylinder is filled with more than half of the water, or even full. |
1. Installed at the bottom of the air storage cylinder, in the normally closed state, it is directly controlled by a lever switch, which is convenient to use. 2. After installation, only the outer nut at the bottom is exposed, with a height of 10mm. 3. It can achieve timed drainage through ECU, and automatically opens and closes the heating according to temperature changes, ensuring that ice can be broken and water can be drained in winter, keeping the air storage cylinder dry, which is both intelligent and efficient. |
The answer is no. Each type of drainage valve has its own applicable scenarios, and they will coexist for a long time, remaining the mainstream in the market.
The manual drainage valve, with its simple structure, low cost, and extremely low failure rate, still occupies a large market share in basic vehicle models and industrial equipment where high intelligence requirements are not necessary.
The traditional automatic drainage valve, with its balanced price and worry-free characteristics of no need for manual supervision, combines practicality and economy, and is deeply loved by many vehicle manufacturers and equipment manufacturers. Jiedeng also sells the JD-ZDPSF-A1 model of the same type of product, which can also provide effective drainage protection for the gas system.
The electronically controlled drainage valve, as the advanced version of the automatic drainage valve, integrates functions such as drainage control, intelligent fault warning, and automatic heating at low temperatures. It is an indispensable important component in the intelligent upgrade process of the braking system of commercial vehicles and industrial gas systems.
The electronically controlled drainage valve inherits the advantages of the Air tank auto drain valve. It eliminates the need to get out of the vehicle, bend over and manually drain water. It can automatically drain water at regular intervals and can also be controlled from the driver's cab with a single button. There is no need for manual maintenance.
In winter, it is not afraid of freezing hands, and in rainy days, there is no need to get out of the vehicle. The drainage is more timely and thorough, effectively avoiding ice formation and rusting in the air passage, making it convenient and ensuring the safety of driving and braking.
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Picture |
Model Specifications |
Instructions |
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Model: JD-DDPS-001 Mounted thread: M32×1.5mm Operating voltage: DC24V ± 15% Operating pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 100℃ Discharge power: 9.6W Protection level: IP67 Does not have heating function No drainage outlet Plug model: AMP282104-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
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Model: JD-DDPS-002 Mounted thread: M32 × 1.5mm Operating voltage: DC 24V ± 15% Operating pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 100℃ Drainage power: 6.3W Protection level: IP67 Equipped with heating function, heating power: 6.4W No drainage outlet Plugin model: AMP282106-1 |
It needs to be used in combination with an intelligent drainage controller, a drainage switch, and a temperature sensor. It is suitable for low-temperature environments and high-altitude areas with the risk of icing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and urban buses. |
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Model: JD-DDPS-003 Mounted thread: M22 × 1.5mm Operating voltage: DC24V ± 15% Operating pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 100℃ Drainage power: 9.6W Protection level: IP67 Does not have heating function No drainage outlet Plugin model: AMP282104-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
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Model: JD-DDPS-003-W Mounted thread: M22 × 1.5mm Operating voltage: DC24V ± 15% Operating pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 100℃ Drainage power: 9.6W Protection level: IP67 Does not have heating function With drainage outlet, φ9 Plug model: AMP282104-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
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Model: JD-DDPS-003-WW Mounted thread: M22 × 1.5mm Operating voltage: DC24V ± 15% Operating pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 80℃ Drainage power: 9.6W Protection level: IP67 Does not have heating function With a rotatable drainage outlet, φ9 Plug model: AMP282104-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
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Model: JD-DDPS-004 Mounting thread: M22×1.5mm Operating voltage: DC24V ± 15% Operating pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 100℃ Discharge power: 9.6W Protection level IP67 Equipped with heating function, with a heating power of 6.4W No drainage outlet Plugin model AMP282106-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
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Model: JD-DDPS-004-W Mounting thread: M22×1.5mm Operating voltage: DC24V ± 15% Operating air pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 80℃ Discharge power: 9.6W Protection grade IP67 Equipped with heating function, with a heating power of 6.4W With drainage outlet, φ9 Plugin model AMP282106-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
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Model: JD-DDPS-004-WW Mounting thread: M22×1.5mm Operating voltage: DC24V ± 15% Operating air pressure: 0 to 1.1 MPa Operating temperature: -40℃ to 80℃ Discharge power: 9.6W Protection grade: IP67 Equipped with heating function, with a heating power of 6.4W With a rotatable drainage inlet, diameter φ9 Plugin model: AMP282106-1 |
It should be used in combination with an intelligent drainage controller and a drainage switch. It is suitable for normal temperature environments and areas without the risk of freezing. It covers common commercial vehicles such as wheel loaders, mining trucks, semi-trailer tractors, long-distance buses, and city buses. |
The electric control drain valves look very similar in appearance and specifications. How to choose?
The selection core of Jideng's electric control drain valves lies in the threads, heating function, and drainage ports.
JD-DDPS-001/002 has an M32×1.5 installation thread, while 003/004 has an M22×1.5 installation thread; 002 and 004 have heating functions and are suitable for cold and freezing regions.
The suffix W represents a fixed drainage outlet, and WW represents a 360° rotating drainage outlet. The chassis layout is more flexible.
For example, many customers when choosing Long-distance bus air tank drain valve, prefer to choose electric control drain valves with drainage outlets.
How can the electric control drainage valve be used in combination with the intelligent drainage control controller, the drainage switch, and the temperature sensor?
The electronically controlled drainage valve, as an actuating component in the drainage system, is installed at the drainage outlet of the air storage cylinder. Under normal circumstances, it keeps the valve port sealed to prevent air leakage.
When a 24V DC control signal is received, the electromagnetic-driven valve core moves upward to open the drainage channel, and the accumulated water is quickly discharged by relying on the internal air pressure of the air storage cylinder.
The temperature sensor continuously collects the ambient temperature and transmits it to the intelligent drainage controller.
The controller then schedules the drainage valve based on the preset temperature threshold:
When the temperature is above the threshold, it automatically drains water according to the pre-set power-on and power-off logic and periodic intervals.
When the temperature is below the threshold, it suspends the automatic drainage and activates the heating function.
Press the forced drainage switch, and the controller will immediately output a signal to drive the drainage valve to drain water. Release the switch to stop the process.
While the vehicle is in motion, the controller temporarily suspends all actions of the drainage valve to ensure the braking air pressure.
When there is a short circuit or open circuit fault in the drainage valve, the controller will precisely indicate the corresponding faulty valve position through the flashing code light.
The electronically controlled drain valve is a Built-in air tank drain valve. What are the benefits of this feature?
The external drain valve has a protruding body, which is prone to being damaged by stones and is more likely to freeze and clog at low temperatures.
The built-in type is installed closely against the air tank, with less exposed area, only 10mm thick, which can effectively avoid impact and has stronger protection. It fits closely with the tank, has good heat conduction, is easier to break ice, and is more reliable in preventing freezing and clogging; the drainage is thorough, the seal is strong, the chassis is cleaner and suitable for various commercial vehicles, and it is more durable and more convenient to use.
The JD-DDPS-002/004 model of electric control drain valve belongs to the Heatable air tank drain valve. Could you please explain what it is like in detail?
JD-DDPS-002/004 is a heated electric control drain valve specially designed for low-temperature environments. It can solve the freezing and clogging problems of the drain valve in winter from the source, avoiding brake failures and component aging caused by ice formation in the air path.
It can be combined with a temperature control sensor to achieve automatic opening and closing.
Reference for ice-breaking efficiency is as follows:
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Environment temperature |
Heating to break ice (response time) |
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Over 0℃ |
Immediate discharge |
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-10℃ |
About 10s |
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-20℃ |
About 60s |
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-30℃ |
About 5m |
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-40℃ |
About 10m |
Absolutely! Choosing an electrically controlled drainage valve as the truck drainage valve is not only feasible but also an inevitable trend in the industry.
Trucks operate over long distances with heavy loads and in harsh conditions. Manual drainage operations are cumbersome and prone to being overlooked, and accumulated water can cause major safety hazards such as brake failure. The electrically controlled drainage valve is specifically designed for truck scenarios.
The main body is made of anti-corrosion aluminum alloy, meeting the 1.1 MPa high-pressure gas pipeline requirements. It passes the QC/T 413-2002 vibration test and the IP67 level waterproof and dustproof test, and can stably adapt to complex environments such as construction sites and mining areas.
It can achieve timed automatic drainage without requiring the driver to go under the vehicle for operation. It can also be connected to the vehicle control system for real-time fault diagnosis and status monitoring, fundamentally solving the pain points of manual drainage and significantly improving the safety and operational efficiency of long-distance truck driving.
Absolutely!
Semi-trailer trucks operate over long distances across multiple regions, frequently traveling between northern cold areas, southern humid and hot regions, and northwest dusty areas.
Traditional manual valves are prone to freezing and jamming at -40℃ temperatures, and are easily corroded and fail in high-temperature and humid environments.
Moreover, the storage tanks of semi-trailers are usually placed at the bottom of the trailers, making the manual drainage operation more difficult and posing greater safety risks.
The electric control drain valve has a working temperature range of -40℃ to +80℃ and is equipped with IP67 protection level, enabling stable operation in extreme environments.
Our JD-DDPS-001 and JD-DDPS-002 models of electric control drain valves, with their large installation diameter of M32×1.5 threads, are suitable for most semi-trailer storage tanks and are favored by many truck manufacturers. They can effectively protect the air circuit braking system and reduce operational failure risks.
Absolutely!
Heavy trucks travel on heavily loaded and bumpy roads as well as unpaved surfaces at construction sites for long periods. Continuous three-axis high-frequency vibrations can easily cause the valve body of traditional drain valves to loosen, the valve core to get stuck, and the seal to fail.
The electric control drain valve provided by Xiamen Jideng is strictly tested for vibration resistance in accordance with the QC/T 413-2002 standard. Under acceleration of 15m/s² in the X/Y axes and 30m/s² in the Z axis, each of the three axes undergoes 8 hours of swept-frequency vibration.
After the test, the product has no cracks or peeling on the surface, operates normally when powered on, maintains a good sealability under 0.8 MPa air pressure, and can withstand the vibration and impact throughout the vehicle's entire life cycle, effectively avoiding drainage failures caused by vibration.
Absolutely!
The mining site environment is filled with high concentrations of dust, mud, slurry, and acidic or alkaline media. Traditional drain valves are prone to corrosion problems such as rusting of the valve body, stuck valve cores, and failure of the seals.
The Xiamen Jideng JD-DDPS-004 electric control drain valve strictly follows the GB/T 10125-2021 standard and passes a 96-hour 5% continuous salt spray test.
After the test, the metal surface shows no oxidation or rusting, the sealing performance is intact and the function is normal.
The company has established a strict periodic quality verification system, conducting a salt spray test of the same standard every six months to continuously monitor the stability of the product's corrosion resistance and effectively resist the long-term erosion of various corrosive media in the mining site.
Buses. In today's era where buses are becoming increasingly intelligent, the automation upgrade of the pneumatic system has become an inevitable trend in the industry.
Jiedeng focuses on the research and production of electronically controlled drain valves for commercial vehicle pneumatic systems.
Buses are not only the vehicle model with the most suitable applications for this product, but also the vehicle model with the largest number of Bus air tank drain valves installed per unit. They are also our core sales battleground.
In the industry, each bus typically installs 5 to 8 drain valves. Among them, the JD-DDPS-003 and JD-DDPS-004 main models have gained wide popularity among bus customers all over the world due to their stable and reliable performance.
Xiamen Jiedeng Machinery specializes in manufacturing high-performance
air tank automatic tank drain for air storage tanks. We employ robust design, strict quality control, and reliable performance to provide durable solutions for compressed air systems.
Our products ensure efficient condensate drainage, extend equipment lifespan, reduce maintenance efforts, and provide stable operation under various working conditions.
By choosing us, you will receive professional quality, timely delivery, and reliable after-sales support.
The electrically controlled drainage valve has obtained CE certification and Rohs certification. It adopts the IATF16949 quality management system.
At the same time, Jideng is also a national high-tech enterprise, possessing a number of invention patents, utility model patents and design patents, and our core technology is independently controllable.
JIEDENG is ready to provide its high-quality drain valves to customers worldwide.
For 24 hours contact details as below:
Email: wangjunbiao@jddrainvalve.com
Tel: +86-592-5237916
Mobile/WhatsApp/WeChat: +86-15985860812
