| 摘要 |
A sprinkler valve suitable for flows from about one (1) to two (2) gallons per hour to thirty (30) to forty (40) gallons per minute. A double diaphragm utilizes a principle of differential areas to create force for any non-zero pressure through the valve. This feature, in conjunction with momentary fluid flow in the solenoid circuit, is responsible for complete regulation of the flow characteristics of the valve. The requirement for large shut-off springs and flow control adjustment screws has been eliminated.
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