Continued operation after the rupture disc open s could damage the ROWPU. Immediately shut off the
ROWPU with the EMERGENCY STOP button (fig. 2-50) and open the REGULATE PRODUCT FLOW
valve (3, fig. 2-67) all the way.
General. The rupture disc is a safety device for the R.O. Pump Assembly. If the pressure ever reaches 1425
psi on the R.O. PRESSURE PSI gage, the rupture disc tears open relieving the pressure. The disc is mounted in a screw-
type mount body on top of the R.O. pump discharge pipe. Replace the rupture disc after it blows, and before starting the
Remove holddown screw (1) from body (4).
Remove holddown ring (2).
Remove ruptured disc (3) and discard.
Figure 3-13. R.O. Pump Rupture Disc and Holder
Place the side of new rupture disc (3) that curves upward toward the top.
Insert it into body (4).