TM 10-4610-240-10
TM 08580C-10/1
T.O. 40W4-13-21
(4)
Swing yoke (3) and T-handle (1) back into position under the bolts (2).
(5)
Recenter the strainer cap (4) making sure the gasket is positioned correctly.
(6)
Tighten T-handle (1).
3-7. RUPTURE DISC.
CAUTION
Continued operation after the rupture disc opens could damage the ROWPU. Immediately shut off the
ROWPU with the EMERGENCY STOP button (figure 2-48) and open the REGULATE PRODUCT FLOW
valve (3, figure 2-64) all the way.
a.
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 ROWPU again.
b.
Removal.
(1)
Remove holddown screw (1) from body (4).
LEGEND:
1. HOLDDOWN SCREW
(2)
Remove holddown ring (2).
2. HOLDDOWN RING
3. RUPTURE DISC
(3)
Remove ruptured disc (3) and discard.
4. BODY
c.
Installation.
(1)
Place the side of new rupture disc (3) that curves upward at the top.
(2) Insert it into body (4).
(3) Replace holddown ring (2).
FIGURE 3-13. R.O. PUMP RUPTURE
DISK AND HOLDER
CAUTION
To avoid damaging disc, do NOT overtighten holddown screw.
(4)
Reinsert holddown screw (1). Tighten until handtight (snug), then tighten 1/8 turn with wrench.
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