Name: vacuum relief valve 
 Model: YFA72W 


 Outline 
 YFA72W applies to the negative pressure system for temperature ≤ 200 ℃, when the negative pressure within the container exceeds the allowable value, the valve automatically opens, the air inhaled;, the valve closes automatically when the negative pressure within the container reaches the allowable value, thereby protecting the equipment and systems . Installed in the normal non-negative pressure system, when the container and relief valve does not open, negative pressure, this valve opens automatically. 


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