When should a ruptured disc be replaced?

Maintenance Frequency. While rupture disc manufacturers would like to recommend replacement of every rupture disc every year, that is not a realistic expectation. As shut- downs for maintenance activities are stretched further and further apart, it is not unusual to expect 3 to 5 years of service from the rupture disc.

What is a rupture disc used for?

A rupture disc is a non-closing pressure relief device used to protect industrial applications from overpressure- or vacuum-related events.

What is the meaning of rupture disc?

A rupture disk, also known as a pressure safety disc, burst disc, bursting disc, or burst diaphragm, is a non-reclosing pressure relief safety device that, in most uses, protects a pressure vessel, equipment or system from overpressurization or potentially damaging vacuum conditions.

What is difference between rupture and explode?

As verbs the difference between rupture and explode is that rupture is (intransitive) to burst, break through, or split, as under pressure while explode is to destroy with an explosion.

How do burst discs work?

A rupture disk is a device designed to function by the bursting of a pressure-retaining disk. When the process reaches the bursting pressure of the disk, the disk ruptures and releases the pressure. Rupture disks can be installed alone or in combination with other types of devices.

What do you need to know about a rupture disc?

They include two gaskets for installation between flanges. Vacuum-rated discs have supports to resist rupture caused by vacuum. Operating ratio is the ratio between the normal operating pressure and the burst pressure. Exceeding the operating ratio decreases the service life of the disc.

What kind of gasket does a McMaster disc use?

Discs with an EPDM gasket resist water and steam, so they work well in humid environments. Discs with a silicone gasket withstand high temperatures. Discs with a Viton® fluoroelastomer gasket stand up to oil and acid condensates. Operating ratio is the ratio between the normal operating pressure and the burst pressure.

What kind of graphite is used in Fike graphite rupture discs?

Made from phenolic resin-impregnated graphite, Fike Graphite rupture discs offer excellent corrosion resistance. For GD Discs in vacuum service (GDV), a vacuum support will be required if the burst pressure is less than 20 psig (1.38 barg).

What should the burst pressure be on a disc?

For example, a disc with a burst pressure of 100 psi and an operating ratio of 90% should not be used in a system with an operating pressure greater than 90 psi. For technical drawings and 3-D models, click on a part number.