Burst disc arrangement and a method for replacing a burst disc in a burst disc arrangement

A burst disc arrangement for a cryostat comprising a replaceable burst disc (52) held in compression between a high-pressure flange (60) formed at an end of a high-pressure conduit (12), and a low-pressure flange (60) formed at an end of a low-pressure conduit (14),

• characterised in that:
• the burst disc arrangement further comprises:
• a housing (50) enclosing the high- and low-pressure flanges (60), said housing (50) including a first opening (20) large enough to allow the replaceable burst disc (52) to pass therethrough;
• and
• compression means (56), distributed around the housing (50) and being arranged to bear upon at least one of the flanges (60), so as to urge it towards the other of the flanges, thereby retaining the burst disc (52) in compression between the low- and high-pressure flanges (60).