| 摘要 |
A temperature sensitive valve, used in drip valves and sprinkler heads includes a core housing the temperature sensitive valve and has a supply conduit entering through the top surface of the core. The temperature sensor activates a motor when the temperature is outside a predetermined range which in turn pushes an activating rod. A piston is attached to the rod. The piston moves from a retracted sealed position to an extended open position which allows fluid to pass around the piston and to an output port which leads to a disposal area or a sprinkler head. The fluid is allowed to flow beyond the piston due to an enlarged diameter section of the core. Alternatively, a piston having an internal channel with an exit hole is aligned with the output port when the piston is in the extended position. Fluid enters the piston channel and passes through the exit hole and through the output port. The valve is most useful in drip valve installments and sprinkler systems. |
