13
Following a Rupture
Perform “Annual” maintenance procedures (steps 1 thru 12 - pages 11 and 12).
When it becomes necessary to replace the rupture disk, the appropriate instructions will accompany the
replacement disk. Therefore, only brief replacement instructions are given here. The non-fragmenting
rupture disk cassette is fragile and requires careful handling, therefore this part of the valve should only
be serviced after a rupture or if the disk is determined to be defective or leaking..
1.
Remove entire
RuptureSeal
™ valve from the chiller. (Be careful to prevent the rupture disk
cassette from falling out of the valve.)
2.
Remove spent rupture disk cassette and install new replacement cassette per installation
instructions (contact equipment servicing).
3
. Install new cassette O-Ring - Parker O-ring #2-241-N674-70 - furnished with replacement rupture
disk cassette.
4
. Install new flange gasket (furnished with replacement rupture disk cassette) between disk cassette
and chiller flange. Reinstall valve and tighten flange bolts sufficiently to assure proper seal.
Servicing and Replacing O-Rings
For servicing Valve Body O-rings 1 and 2, see procedures for annual maintenance starting on page 11.
For servicing Disk Cassette O-ring 3, see procedures for servicing the valve following a rupture above.