In addition to the safety valve or the following organizations are among the most pressure relief devices:
Bursting discs
Fusible
Water Templates

Disks are used when large mass flows must be removed and / or losses over the seat seal must be avoided on a SAFETY VALVE. Is not there as opposed to the safety valves, the pressure relief opening closed again automatically, can rupture discs only be used if the high mass flow rates from the bursting no danger occurs (such as blowing into a closed system, following a blow-off or use non-toxic gases ). Disks are used as a pressure relief device in explosions or deflagrations. Bursting discs are also used in conjunction with a safety valve in order to ensure a tightness of the associated plant during normal operation and, secondly, the reclosing ensures the so-safe system according to one of the safety device. Because of their superior clean ability compared with the safety valve, ruptures discs are also in the hygiene sector (pharmaceuticals, food) are used.

Fusible to secure excessive pressure due to heat (fire) in plant parts
the safety valve is activated when the pressure in a pressure vessel exceeds the allowable operating pressure for predictable disturbances by more than 10%. With proper sizing of the safety valve, the pressure building under control After the actuation of the safety valve and reduce the excessive pressure by blowing into the environment or a pipeline, the valve closes and the system can be operated. An example is the boiler safety valve of a steam locomotive.

Will also be installed a safety valve in each closed circuit, which is heated. This is the case for water heating systems, collector circuits and all direct or indirect heating circuits. The safety valve prevents the bursting of the plant if a transfer of heat through a thermal Flossing kits us debug occurs and no defined cushion gas is present. If a gas overlay is missing, the expansion of the liquid leads to a deformation of the walls. Even small increases in temperature