7590U Rego 3/4" M.NPT 1-5/8" UNF Chek-Lok Excess Flow Valve

• Extra strength connection between body and adapter provides increased strength
• Weep hole in cap provides indicator to verify Chek-Lok is closed before cap removal
• Heavy duty brass cap requires at least 31/2" full turns for removal
• O-ring seal on adapter provides a gas tight seal before the adapter opens the equalizing stem
• Eliminates need for individual transfer valves at each container
• UL listed

Specification Sheet

Chek-Lok Excess Flow Valves are designed to provide a convenient means of withdrawing liquid from stationary containers prior to moving the container. The Chek-Lok permits one transfer shut-off valve with an adapter to be used interchangeably on a number of tanks. The 7590U and 7591U Chek-Loks are also designed for use on permanent installations provided the excess flow valve is sized properly for the system and piping.