| 摘要 |
A fixed nozzle type sprinkler having a flow interrupter assembly that is configured to reduce the water hammer effect is disclosed. A pressure relief valve is disposed to vent fluid when the pressure within the sprinkler exceeds a generally predetermined amount. When the flow interrupter assembly is in its closed position, blocking fluid flow through the nozzle, the pressure in the sprinkler can build up. Once that pressure reaches the generally predetermined amount, the pressure relief valve opens to vent fluid and reduce the pressure within the sprinkler.
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