2. Supply purified helium gas to the installation zone.
3. Open by-pass valve (red handled) and pressurize manifold header with
helium up to the maximum rated pressure (MAWP) of the unit.
4. Perform an outboard helium leak test on the valves and the inlet and
outlet gasket seal connections using a sniffer probe.
5. Should leakage be detected, contact Pall Corporation SLS for technical
assistance. Do not attempt to repair purifier or valves in assembly.
6. Close by-pass valve and then open upstream and downstream isolation
valves on the purifier.
Note:
manifolded purifiers require opening of four
valves (blue handled).
7. Pressurize purifier and the remainder of the manifold with helium up to
maximum rated pressure (MAWP) of unit.
8. Perform an outboard helium leak test on the purifier, valves, and
gasket seal connections using a sniffer probe.
9. Should leakage be detected, contact Pall Corporation SLS for technical
assistance. Do not attempt to repair purifier or valves in assembly.
10. Close upstream and downstream isolation valves on the purifier
manifold.
CAUTION:
Inboard helium leak testing of the purifier is not recommended
because of the possibility of contaminating the AresKleen purification
material by air infiltration when returning from vacuum. Also, as shipped,
Pall Gaskleen
®
Bulk Gas Purifiers contain trace amounts of helium due to
standard manufacturing processes. A spool-piece can be used to perform
an inboard helium leak test on the process lines prior to installation of the
purifier. If inboard helium leak testing of the purifier is required contact
Pall Corporation SLS for technical assistance.