What is the automatic circulating water supply principle of a pet water feeder?
1. Atmospheric pressure balance replenishment: When the water level in the bowl drops, the connected water bottle automatically replenishes the bowl through atmospheric pressure difference, maintaining a constant water level.
2. Siphon (suction) principle: Some feeders use a siphon tube design, utilizing gravity and negative pressure to keep the water flowing continuously, avoiding intermittent water supply.
3. Electric pump circulation filtration: High-end models have a built-in wireless magnetic induction powered water pump, which can achieve water circulation filtration and automatically draw bottled water to replenish when the water level is low, achieving fully automatic circulating water supply.
4. Intelligent sensor control: A water level sensor monitors water level changes in real time, and works with a microcontroller to automatically start replenishment or pumping, ensuring that pets always have access to fresh water.
How does Ningbo Welltrop Industrial Products Manufacturing Co., Ltd. guarantee the safety of the materials used in its pet water feeders?
1. Food-grade stainless steel: The company uses 304/316 food-grade stainless steel, which meets international food safety standards, is corrosion-resistant, odorless, and ensures that the water quality is not contaminated by metal ions.
2. BPA-Free Plastic Components: All plastic parts are made from BPA-free materials that meet FDA and CE certifications to prevent harmful chemicals from leaking into drinking water.
3. End-to-End Quality Control: From raw material procurement to finished product packaging, advanced processes such as CNC machining, injection molding, and metal processing are used throughout, and a rigorous quality inspection system is implemented to ensure that every product meets safety standards.
4. Third-Party Testing and Certification: Before leaving the factory, products undergo testing by third-party organizations such as SGS, LFGB, and EU REACH, obtaining the corresponding certifications before mass production and shipment, further enhancing consumer trust.