Patent No. 5,397,467
· Specially designed to permit the recirculation of mobile phase back into the reservoir while maintaining the helium sparged environment.
· This cap also performs stepwise filtration, sparging/degassing, storage and delivery to the HPLC pump
· An integral check valve prevents mobile phase from backing up into the gas lines
· A pressure release valve protects the reservoir from being accidentally over-pressurized
· The 1/4”-28 fitting connections allow easy connection to any HPLC pump system
· Cap body is manufactured from glass-filled PTFE
· Cap will fit any reservoir or bottle with a GL 45 thread