Immediate shutoff when power is cut: the valve's rubber core seals tightly against the water sealing port through spring force, stopping flow instantly to prevent residual water leakage. Automatic flow stabilization: a builtin pressure buffer structure automatically adjusts the valve core response speed as water pressure fluctuates, reducing system shocks caused by changing water flow. Thermal expansion protection: the pressure buffer helps prevent sealing issues caused by thermal expansion and cold contraction of the valve body when lowtemperature water pressure fluctuates. Backflow prevention: an integrated antibackflow device stops used water from flowing back into the potable water supply, safeguarding household water sanitation. Compatibility and fit: designed for standard washing machine inlet connections, ensuring reliable operation across common appliance configurations. Key materials and components: features a rubber core and springbased mechanism for durable, dependable performance in controlling cold water inlet. Practical applications and scenarios: In homes with irregular or fluctuating inlet water pressure, ensures reliable shutoff and reduces leakage risk during fill cycles. In environments with temperature variations and cold water inflow, maintains seal integrity and consistent valve performance. In households requiring water safety measures, prevents backflow to protect the clean water supply.