photovoltaic solar power generation technology, the requirements are constantly changing, coupled with the harsh dynamic conditions that threaten performance, and meet the customer’s requirements for the service life of products for decades.

under any complex environmental factors, it brings challenges to the components configured in the photovoltaic cavity. To improve the external and own ventilation and pressure relief limitations of green energy, it is the key point of the product scheme to solve the problems of waterproof, dustproof, ventilation and UV resistance.

SDA Shangda threaded waterproof ventilation valve, high efficiency, pressure and impact resistance.

SDA Shangda adhesive waterproof breathable membrane, waterproof breathable corrosion-resistant

SDA Shangda continues to break through innovation, making its waterproof vent valve one of the most widely used products in the photovoltaic inverter industry.

outdoor photovoltaic power supply adopts PC material with impact resistance and heat distortion resistance, good weather resistance and high hardness, which can calmly cope with acid and alkali resistance and salt spray particles in outdoor harsh environment (such as extremely high temperature and extremely low temperature), and is embedded with E-PTFE (expanded polytetrafluoroethylene) waterproof and breathable membrane fluorine material in the shell to improve the water blocking and ventilation function, eliminate fog in the cavity, avoid condensation and leakage, etc, the ventilation flow mechanism changes with the change of the environment inside and outside the cavity of the application equipment, and it is easy to keep the pressure inside and outside the cavity in balance. And the anti-household level can reach IP68.