you first need to understand one of the key components of a portable propane tank: the pressure relief safety valve. This valve, which is located at the top of the cylinder, is designed to release ...

The tank was last re-certified in 1978 and had a defective safety valve that allowed gas to escape, which was ignited by the open flame of a ceiling-mounted furnace.

HILLSBORO — State investigators have revealed the cause of an explosion that killed three people at an auto repair shop in ...

Check stock performance, fundamentals, market cap, shareholding, financial reports, annual & quarterly results, and profit & loss statements.