Nozzles & Equipment
Gated Wye
A gated wye is an appliance that splits one incoming line into two outgoing lines, each with its own valve. It lets one supply feed two attack lines while controlling them independently.
The two gates let the operator open, close, or throttle each branch separately. That independence is what makes a split lay work: the thirstier branch sets the supply pressure and the easier branch gets gated down to its own target.
Like any appliance, the wye adds a loss as water turns and divides inside it. Budget that loss in the pump discharge pressure, or both branches downstream run weaker than planned.
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Split Lay (Gated Wye)