Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Evaporative Check Valve

ROLLOVER/VENT VALVE
Tank pressure to open (max.) 7.0 kPa (1.0 psi)
Air pressure to vent tank (max.) 4.9 kPa (0.7 psi)

TWO-WAY CHECK VALVE
Vacuum to open port A 26 mm Hg (1.01 in Hg)
Vacuum to open port B 44 mm Hg (1.73 in Hg)