20130255970 | Fluid Delivery System - A fluid delivery system for delivering fluid in response to fire. The system includes one or more fluid delivery devices responsive to fire to deliver fluid, an inlet pipe for conveying fluid toward the fluid delivery devices, and one or more flow sensors. At least one of the flow sensors is arranged to sense when fluid is flowing along the inlet pipe towards the devices, a pump and plumbing. The plumbing connects the pump in parallel to the flow sensor of the inlet pipe to pressurize portions of the system downstream of the flow sensor of the inlet pipe. The plumbing also connects a portion downstream of at least one of the flow sensors to an upstream side of the pump to define a fluid circuit about which fluid may be circulated by the pump to test the at least one of the flow sensors of the system. | 10-03-2013 |