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. The Chek-lok® contains a weak section underneath the outlet threads to protect the container from a pull away incident. Any undue stress could cause this weak section to shear unintentionally if not properly supported and installed. NOTE: In some cases, it may be necessary to use an in-line excess flow valve to protect the downstream piping. This valve is not recommended for use as a liquid source for pumps.
| SKU | Wrench Hex Flats | Hose Connection (in.) | Propane Liquid Capacity At Various Differential Pressures Gpm 10 (psig) | Propane Liquid Capacity At Various Differential Pressures Gpm 25 (psig) | Propane Liquid Capacity At Various Differential Pressures Gpm 5 (psig) | Propane Liquid Capacity At Various Differential Pressures Gpm 50 (psig) | Product Name | Tank Connection (in.) | Filler Valve Type | Propane Liquid Capacity at Various Differential Pressures 75 PSIG |
|---|---|---|---|---|---|---|---|---|---|---|
| L7579C | 1 7/8” | 1 3/4” M. ACME | 70 GPM | 111 GPM | 50 GPM | 157 GPM | Double-Check Filler Valves for Large DOT and ASME Tanks | 1 1/4” M. NPT | Standard | 192 GPM |
| L7579 | 1 7/8” | 1 3/4” M. ACME | 70 GPM | 111 GPM | 50 GPM | 157 GPM | Double-Check Filler Valves for Large DOT and ASME Tanks | 1 1/4” M. NPT | Standard | 192 GPM |
| 7579P* | 1 7/8” | 1 3/4” M. ACME | 52 GPM | 82 GPM | 37 GPM | 116 GPM | Double-Check Filler Valves for Large DOT and ASME Tanks | 1 1/4” M. NPT | Piped Inlet Connection | 142 GPM |