![]() These pressure relief valves include a nozzle extending into the interior of the valve and communicating with the pressure vessel and a blowdown ring which is threaded to the nozzle. The device includes an annular collar surrounding at least a portion of the blowdown ring and the nozzle, a first locking mem.Īn improved pressure relief valve with an improved device for securing the blowdown ring of the valve without compromising its pressure integrity. ![]() Atop the nozzle\s opening is a disc which is spring biased into engagement with the nozzle to seal same. An improved pressure relief valve with an improved device for securing the blowdown ring of the valve without compromising its pressure integrity. ![]()
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