User Manual

Intellisys 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

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.