The Drain valve temperature sensor, developed by the experienced manufacturer in China - Xiamen Jiedeng Machinery Co., Ltd., is specifically designed for the drainage system of commercial vehicle air tanks. It adopts a standard interface design, is easy to install, resistant to vibration and weathering.
It can collect the ambient temperature in real time and feed it back to the controller, enabling automatic heating at low temperatures to prevent freezing, effectively avoiding the freezing of the drainage valve and ensuring the reliable operation of the gas path system.
The Drain valve for air tank temperature sensor is equipped with a metal fixing plate with installation holes, suitable for installation bolts with a diameter of 4±0.5 mm and an installation length of 24±0.5 mm.
It can be directly fixed at the vehicle's external ventilation position to ensure that the sensor is exposed to the real environmental airflow, avoiding the influence of local temperature on measurement accuracy.
A PVC conduit cable of 400±20 mm in length is provided, with excellent insulation performance, weather resistance, and anti-aging characteristics.
It can adapt to the complex installation environment of the vehicle exterior and is not easily damaged by vibration, high temperature, or low temperature changes.
A standardized automotive connector (shell model 282104-1, terminal model 282404-1, sealed plug model 281934-4) is used, compatible with the mainstream electronic control systems of commercial vehicles. Installation is simple, and it has reliable waterproof and dustproof performance.
| Item | Specification |
| Nominal value | R0=16.48KΩ±3%，R25=5.00KΩ±1% |
| Material constants | B25/50=3950K |
| Insulation resistance | ⩾10MΩ |
| Temperature response | Time⩽15s（ 25℃in water→0℃Alcoholic） |
| Working temperature | −40℃~+85℃ |
This Drain valve temperature sensor is specifically designed for the external ventilation area of the vehicle, ensuring it can collect the true ambient temperature rather than the local heat sources from the engine compartment, cab, etc. It provides accurate reference data for the control of the air conditioning system and the electronic control unit.
The combination of the metal mounting bracket and the polyvinyl chloride cable has excellent vibration resistance and aging resistance, capable of withstanding the vibrations and temperature cycling (high and low temperatures) experienced during the operation of commercial vehicles, thus achieving long-term durability.
Using industry-standard connectors and installation specifications, it can be directly installed into the environmental temperature monitoring systems of most commercial vehicle models without any additional modifications.
It has a fast temperature response speed and high-precision resistance characteristics, which can quickly reflect temperature changes and provide stable signal support for functions such as automatic vehicle air conditioning regulation and engine intake control.
Low-temperature freezing is a key hazard that causes the failure of the drainage valve and the blockage of the air passage in the air storage tank drainage system of commercial vehicles.
As a key component of the intelligent drainage control system, the Gas storage tank temperature sensor collects the external environmental temperature in real time and feeds the signal back to the system controller.
By analyzing the temperature data, the controller will automatically activate the heating function of the drainage valve when the ambient temperature is below the set threshold; when the temperature returns to the safe range, it will automatically shut off the heating.
This achieves precise temperature control and anti-freezing protection, avoiding the failure of the drainage valve due to low-temperature freezing and ensuring the stability and reliability of the air passage system under severe cold conditions.
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