Composite Male Branch Tee Swivel

Core working principle - functional division of materials and structures:
1. The fundamental role of brass substrate
Brass serves as the main frame and fluid channel (main and branch pipelines) of the joint, utilizing its high thermal conductivity and corrosion resistance to ensure stable fluid transmission.
Male thread design is used for mechanical connection with externally threaded components such as pipes and valves, achieving sealing and fixation through thread engagement.
2. Functions of PTC/PTCR composite materials
PTC materials are usually used as insulation layers or functional components wrapped around the surface or interior of brass structures, and their core characteristic is that the resistance increases step by step with temperature.
When the fluid temperature or ambient temperature exceeds the Curie temperature of PTC material, its resistance increases sharply, and overheating power-off protection can be achieved through a series circuit (such as preventing hydraulic system oil temperature from being too high and causing leakage).
If PTC materials are used in heating scenarios (such as preventing pipeline freezing in winter), their resistance increases with temperature, which can automatically limit the heat generation and avoid the overheating risk of traditional heating elements.

Dynamic working mechanism of swivel fitting:
1. Mechanical principles of rotatable structures
The branch pipeline interface (external threaded end) is connected to the main pipeline through a rotating shaft structure, allowing for free rotation within a certain angle range. This design can offset the angle deviation during pipeline installation and reduce the stress caused by rigid connections in the pipeline (such as fatigue fracture caused by vibration).

2. Linkage between fluid transmission and temperature control
When the joint is used to transport high-temperature fluids, the PTC material wrapped around the brass pipeline senses temperature changes in real time. If the fluid temperature exceeds the threshold, the PTC resistor increases, triggering the circuit to cut off the heat source or start an alarm (such as when the car ECU receives a signal to reduce the engine load).
In cold environments, PTC materials generate heat when powered on, heating the fluid (such as fuel) inside brass pipelines. As the temperature increases, the PTC resistance increases and the heat generation automatically decreases, maintaining the fluid temperature within the set range (such as -10 ° C~20 ° C) to avoid overheating and vaporization.

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