J120 low-pressure shut-off valve to protect combustion equipment downstream, below the set pressure automatically cut off. J120 manually reset. 

 1, the maximum inlet pressure: 350mb (5PSI); 

 2, cut off pressure: factory set at 10mb or 15mb; 

 3, size: 3/4 ", 1", 1/4 ", 1/2", 2 "; 

 4, the ambient temperature: -20 ℃ ~ +70 ° C; 

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