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.
Material |
N/A Brass |
Capacity |
N/A 20 gpm |
Hexagonal Body Wrench Flats (A) |
N/A 1-3/4 in |
Hexagonal Wrench Flats (C) |
N/A 1-5/16 in |
Approximate Effective Length (B) |
N/A 1-7/16 |
Rating |
N/A Underwriters Laboratories (UL®) Listed |
Alternate Part Number |
N/A 7590U |
Inlet Connection Size |
N/A 3/4 in |
Outlet Connection Size |
N/A 1-5/8 in |
Inlet Connection Type |
N/A Male National Pipe Thread (MNPT) |
Outlet Connection Type |
N/A Unified Fine Thread (UNF) |
Note for Closing Flow |
N/A
Based on horizontal installation of excess flow valve. Flows are slightly more when valves are installed with outlet up; slightly less when installed with outlet down. |
Note |
N/A
Multiply flow rate by 0.94 to determine liquid butane flow. |
