Nor-Cal Intellisys Isolation Pendulum Valve - Manual (Page 2)

Intelli sys Isolation Pendulum Valve (IPV)
Quick-Start Guide
200mm, 250mm and 350mm Isolation Pendulum Gate Valves (IPV)
Nor-Cal Products, Inc. 1967 South Oregon St., Yreka, CA 96097 USA
LIT-IPV-QSG, 05/2006
Basic Troubleshooting
Gate Seal does not pass Helium Leak Check
•
Open the valve for approximately one hour to help relieve o-ring compression set on the gate seal.
•
Wipe-down inner sealing flange and the gate o-ring with IPA and DI.
NOTE: Gray Aluminum Oxide residue on a cleanroom wipe is normal.
•
Make sure 80-100 PSI CDA or N
2
is provided. Pressure <80 PSI can prevent complete sealing.
•
Check for cracked or broken air fittings. Listen for CDA leaks.
•
Re-try the Helium leak test after the above steps have been taken
•
If the valve still does not pass, record the areas where it fails, the leak rate, and the serial number,
then call a local Nor-Cal rep.
•
Do not disassemble the valve without authorization from a Nor-Cal rep.
•
Consult the specification for this seal to confirm there is a discrepancy.
Atmosphere seals (Bonnet, Shaft, Hard-stop) do not pass Helium Leak Check
•
Record the area where the atmosphere seal leaks, the leak rate, and the serial number, then call a
Nor-Cal rep.
•
Consult the specification for the seal to confirm there is a discrepancy.
Bolts get stuck (galled) in the body or flange
•
DO NOT force the bolts out! Irreparable damage can occur, or the bolts may break-off.
•
Instead, use large amounts of DI or IPA to lubricate the bolts, slowly turning them back and forth in
small increments until the bolt has been removed.
NOTE: If the Helicoil backs out with the bolt, stop here, and then call a Nor-Cal Rep.
•
Thoroughly clean and rinse the threads of both the bolt and the threaded hole.
•
Inspect both for damage, and try hand-threading the bolt back into the hole.
•
If there is resistance to hand-threading, call a Nor-Cal rep.
Cosmetic discrepancies
•
Some imperfections and discoloration are normal. Consult the cosmetic specification for the
particular location (casting, machined surface, paint, etc.) to be sure there is a discrepancy.
•
Do not attempt to fix cosmetic scratches on machined or finished surfaces. If possible, photograph
the issue, and then email images to a Nor-Cal rep.
•
Never use solvents or cleaners other than IPA or DI water to remove stains or discoloration.
Contacting a Nor-Cal Representative
For a complete list of worldwide contacts, please visit the Nor-Cal website at
http://www.n-
c.com/Worldmap.aspx .
Obtaining Complete Manuals
To download complete manuals for Intellisys TBV Valves, please visit www.n-c.com . Click Support, choose
Product Documentation Downloads from the drop-down menu, and pick Downstream Pressure Control and
locate document under Manuals at the left.