2-32. RUPTURE DISK ASSEMBLY REPAIR (Models WPES-10, WPES-20 and WPES-30)- continued.
Do not use sharp tools to disassembly rupture disk assembly. Brass ring and/or rupture
disk may get damaged.
Unscrew plug (3).
Remove ring (4) and rupture disk (5) from housing (6).
Remove antiseize tape from housing (6).
Remove any tape particles, or other foreign materials from plug (3) and housing (6).
Inspect rupture disk (5) for corrosion and deformation.
Inspect ring (4) for deformation, nicks or deep scratches.
Inspect housing (6) and plug (3) for damaged or corroded threads.
Replace defective components.
Incorrect installation of disk and/or ring may result in injury of personnel and damage to
Apply anti-seize tape to external threads of housing (6).
Insert rupture disk (5) in housing (6) with curved center up as shown.
Inside wall of ring (4) has a round edge and a sharp edge. Be sure round edge is down,
in contact with disk (5) when installed.
Insert ring (4) in housing (6), round edge down, as shown.
Screw plug (3) into housing (6) and snug.
2-144 Change 1