DonadonSDD disc holders are designed in order to ensure maximum reliability to DonadonSDD rupture discs.
GR disc holders in graphite have been designed for GR replaceable graphite disc mounting. The GR model has been designed to be fitted directly on piping and is:
composed of two flanged graphite parts
characterised by resistance to aggressive fluids
complete with Graphite and Cork seals
Dimensions - From 25 to 200