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S10: Integrity Testing
Figure 2 shows the configuration for integrity testing a spiral cartridge.
Figure 2. Configuration for Integrity Testing a Spiral Cartridge
1. Drain the plumbing of water. To remove any residual water, purge with
filtered nitrogen or clean, dry air at 1–2 psi (0.07–0.14 bar), if necessary.
2. Attach a regulated and filtered supply of nitrogen or clean, dry air to the feed
side of the cartridge housing.
3. Isolate the retentate manifold by closing the back-pressure valve. The
permeate port valve should be open.
4. Slowly raise the gas pressure to the value recommended for your cartridge
type, as shown in Table 1.
Table 1. Integrity Test Specifications for S10
Catalogue Gas Flow Rate Test Pressure
Number cc/min psig (bar)
CDUF010LC ≤ 60 10 (0.7)
CDUF010LG ≤ 60 5 (0.35)
CDUF010LT ≤ 150 5 (0.35)
Feed
line
Cartridge, installed
Gas supply
Retentate line
Permeate line
Permeate pressure
gauge
Back-pressure valve
Permeate
port valve
Feed pressure gauge
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