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11:40 PM
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20 gas explosions in Massachusetts just now!!!
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[quote:Terrebonne:MV8zOTA0MTU0XzcwMzg2NDI2XzgzNTRCNTAx] [quote:Lost Pottawatomie:MV8zOTA0MTU0XzcwMzgzNTgwX0E2QzQ2MkJC] Most control valves are designed so that the valve has to open against the incoming pressure. In this way the pressure helps the valve to stay well sealed and higher pressure should only keep it more tightly on the seat. The magnetic coil that opens the valve is of limited strength and likely couldn't open against 100 psi. But if it were already open, the main burner would make an inferno. Pilot lights would blaze up for sure. Pressure relief valves ARE different and are designed to blow open from exceeding a pressure rating. Why the distribution system does not seem to include them is a mystery. [/quote] Regulators at the meter has a PRV, but because the system was low pressure there was no need for a regulators. So there was no fail safe for more gas interring the homes. . [/quote]
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It’s breaking on the local news now. Here’s a link with a live stream
Wushu.com
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