Abstract: The water-saving solar hot-water heater is improved.The replacement of the two-position water and vapour valve of the water-saving solar hot-water heater by the two position automatic prot ection valve leads to the transition from hand to automa
Abstract: The water-saving solar hot-water heater is improved.The replacement of the two-position water and vapour valve of the water-saving solar hot-water heater by the two position automatic prot ection valve leads to the transition from hand to automa
文摘:用自动保护双位阀替代节水太阳能热水器的通水输气两位阀，使节水太阳能热水器从手动保护过渡到自动保护，改进了节水太阳能热水器系统.