Backwater lock valve is a protective valve accessory designed specifically for heating, hot water, and fluid circulation systems. Its core function is to prevent backflow of water, medium, and abnormal flow under non set working conditions. It adopts passive intelligent control technology and can automatically lock and open without the need for external power supply. It is widely suitable for civilian heating, boiler systems, solar hot water, central air conditioning, and other scenarios, taking into account anti backflow, precise linkage, reliable sealing, and long-term durability, effectively solving pain points such as system backflow overflow, medium pollution, and hydraulic imbalance. It is the core protective component to ensure the safe and stable operation of fluid circulation systems.
core design：Strong anti backflow and elimination of system hazards
Built in high-precision check device, designed with a rotary or lifting structure, smoothly opens when the medium flows forward, with minimal resistance, and does not affect the normal circulation efficiency of the system; Once the medium shows a tendency to flow back, the check device quickly and tightly closes to achieve effective anti backflow protection, preventing the user end or downstream medium from flowing back to the main pipeline, boiler or collector, avoiding hydraulic imbalance, medium pollution and equipment damage in the system. At the same time, the pressure difference between the inlet and outlet can be adjusted to ensure low-noise operation of end devices such as radiators, achieve hydraulic balance at the end, adjust the resistance balance of each heating loop, and further optimize the system operation effect. In addition, the valve is equipped with flow corresponding markings, which can accurately control the flow status of the medium and facilitate debugging and maintenance.
Hot Tags: water shut off valve lock, China water shut off valve lock manufacturers, suppliers, factory
