- Application: Larger Bulk Plant Systems
- Size - FNPT: 2"
- Spring Range: 30 - 80
The CORKEN B177 external bypass valve is designed to maintain a constant differential pressure across a sliding vane pump or any other piece of equipment requiring differential pressure control. Since horsepower is directly related to the amount of differential pressure generated by a sliding vane pump, limiting pressure limits horsepower. This is particularly important on electrically driven pumps used to load or unload product from bobtails or transports. If a valve is inadvertently closed, it can overload the motor or cause the pump to build too much pressure. To prevent this from happening, an external bypass valve is installed in the piping system.
B177-2 Bonnet O-Ring - Buna-N - 140943
B177-2 Center Headbolt Gasket - Steel - 140947
B177-2 Flange (2” NPT) (Qty. 2) - 140627
B177-2 Flange O-Ring - Buna-N (Qty. 2) - 140940
B177-2 Flange O-Ring - Teflon® (Qty. 2) - 141011
B177-2 Flange O-Ring - Viton® (Qty. 2) - 140958
B177-2 Hex Head - 3/8-16 X 1 1/2" - Grade L7 (Qty. 8) - 140546
B177-2 Relief Spring (80 to 110 psi) - 140818
B177-2 Retainer Ring - 141022
B177-2 Seat - Teflon® - 140779
B177-2 Stem Seal - Neoprene® - 140803
B177-2 Stem Washer - 140808
Neoprene® is a registered trademark of the DuPont company.
Teflon® is a registered trademark of the DuPont company.
Viton® is a registered trademark of the DuPont company.