Secondary Leak > 3 μL/min

If a secondary leak is found, the following reasons are possible:

Subpages

Probable cause	Suggested actions
1	Leak between the OBV and automatic purge valve	Check for visible leaks on fittings and connectors: Connector not fixed/tight enough Connector damaged Leaky filter frit assembly Remove the seal wash tubes from the support ring and check for leak into the seal wash path: Main seal leaking/damaged Piston damaged Remove waste lines from the automatic purge valve: Damage to rotor seal and/or stator head
2	Outlet valve not properly assembled	Check if outlet valve is properly assembled: Re-tighten the outlet valve Check the position of the gold seal

Probable cause

Suggested actions

Leak between the OBV and automatic purge valve

Check for visible leaks on fittings and connectors:

Connector not fixed/tight enough

Connector damaged

Leaky filter frit assembly

Remove the seal wash tubes from the support ring and check for leak into the seal wash path:

Main seal leaking/damaged

Piston damaged

Remove waste lines from the automatic purge valve:

Damage to rotor seal and/or stator head

Outlet valve not properly assembled

Check if outlet valve is properly assembled:

Re-tighten the outlet valve

Check the position of the gold seal