Based on industry standards, the wet automatic alarm check valve with flange type produced by Chinese manufacturers is strictly conforming to this rule. The flange connection mode is relatively convenient and reliable for installation, and can be well adapted to various types of fire extinguishing pipelines. The valve is equipped with a wet automatic alarm function, once the water flow in the system is abnormal, the internal alarm can quickly sound the alarm, reminding personnel to deal with the alarm in time. The check model works to cut off the water backflow to keep the fire control system running reliably, thus making a strong guarantee for fire safety.












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