9
INSTALLATION (continued)
C h i l l e r
(28) Isolation Chamber
lower part
(2) Valve Body O-Ring
(29) Spring tension adjusting
mechanism and isolation
chamber upper part
(17) Pin hole for spring locking
when servicing O-Rings
(26) Tension Bar
(25) Pull Ring
(21) Tell-Tale
Pressure Gauge
Cutaway View
Figure 3
(48) Roll-Pin
(42) Valve Inlet flange
(8) Outlet to Vent Pipe
(22) Double Check Pressure
Equalizing Valve
(30) Spring
(39) Stem Seal
(23) Water drain hole in
issolation chamber
(1) Valve Seat O-Ring
(32) Nozzle
(9) Valve Body
locking screws
(41) Flange Gasket
(46) Existing rupture disk
flange on chiller
(3) Rupture Disk O-Ring
(40) Flange Bolts
and Nuts
(45) NON-FRAGMENTING
Reverse Buckling, Solid
Metal Rupture Disk
Cassette
(24) Valve Body
water drain hole
(7) Valve Body
(16) Calibration locking
screws and seal
Pressure Gauge
The Tell-Tale pressure gauge
(21)
, located between the rupture disk and the
valve seat, is provided to indicate when a rupture disk has burst or is seeping.
A pressure or vacuum reading other than “0” psig indicates a problem with the
rupture disk.
Auxiliary Alarm
An optional
RuptureAlarm
™ is available to supplement the pressure gauge.
(
IT IS HIGHLY RECOMMENDED.
) The Alarm will signal if the rupture disk
ruptures. See Appendix “C” on page 16 for alarm mounting location. Contact
equipment servicing for information on the optional
RuptureAlarm
™.
Tell-Tale
Pressure Guage
Figure 4
RuptureAlarm
Figure 5
Optional Alarm
ALARM
RESET