The closure lid is retained in position by a calibrated coil spring. A build up of pressure in the tank will overcome the resistance of the spring and the weight of the closure cause it to open sufficiently to allow the internal pressure to dissipate, thereby preventing the risk of tank rupture or explosion. It will close automatically when the internal pressure is reduced.
Purple Engineering is providing a wide range of Pipeline and Oil & Gas equipment. It is possible that we have the product you are after or know who in the market has it! Please call us and we can confirm if we have the item you are searching for.
Purple Engineering is an Australian based company and we have a wide range of equipment for Onshore & Offshore Pipeline, Oil & Gas and Power Generation industries. Please Email us the spec of the item you rquire & we will confirm the availability.