원래 이름 기록: Tyco Fire Products LP

Systems, methods, and devices related to mixing foam fire suppressant are provided. A foam proportional mixing device includes a first pump. The first pump includes an inlet pipe coupled with a first housing, such that the inlet pipe is in fluid communication with a first cavity defined by the first housing. The first pump includes a foam receiving port arranged on the inlet pipe and a pair of rotors positioned within the first housing. The foam proportional mixing device includes a second pump. The second pump includes a pair of gears located within a second cavity defined by a second housing. The foam receiving port is in communication with an outlet of the second pump, such that the first pump is in fluid communication with the first cavity.

Automatic fluid control assemblies and methods for fire protection include an arrangement of electrically operated control points, a valve body and a controller to operate the fluid control assembly. The automatic fluid control assembly has an inlet, an outlet and a valve body to control flow between the inlet and the outlet. An electric latch includes a first electrically operated control point and a second electrically operated control point in fluid communication with a control line to control the flow of fluid from the inlet to the valve body and outlet. The methods of fluid control includes controlling a plurality of electrically operated control points to perform any one of: a leak test, a trip test, a flow test, a water delivery test, and a validation test of a non-trip condition and a trip condition.