900X emergency shut-off valveDetailed product description：

The 900X emergency shut-off valve is a valve used in parallel water supply systems for firefighting and domestic use, to adjust the direction of water supply. When a fire occurs, the fire department urgently needs a large amount of water and immediately cuts off domestic water to ensure sufficient fire water supply; When the water pressure decreases after the fire stops, the valve automatically opens and returns to a normally open state, restoring domestic water supply. The emergency shut-off valve eliminates the need for a dedicated fire water supply network, greatly saving construction costs and water consumption. Valve control has high sensitivity, safety and reliability, easy debugging, and long service life.

Main connection dimensions of 900X emergency shut-off valve:

Nominal diameter (mm)	Size (mm)
	L	H 1	H
twenty	one hundred and fifty	two hundred and forty-seven	three hundred and forty-two
twenty-five	one hundred and sixty	two hundred and forty-seven	three hundred and forty-two
thirty-two	one hundred and eighty	two hundred and forty-seven	three hundred and forty-two
forty	two hundred	two hundred and seventy-eight	three hundred and ninety-five
fifty	two hundred and three	two hundred and seventy-eight	three hundred and ninety-five
sixty-five	two hundred and sixteen	two hundred and ninety-eight	four hundred and five
eighty	two hundred and forty-one	three hundred and thirteen	four hundred and thirty
one hundred	two hundred and ninety-two	three hundred and fifty	five hundred and ten
one hundred and twenty-five	three hundred and thirty	three hundred and sixty-five	five hundred and sixty
one hundred and fifty	three hundred and fifty-six	four hundred and twenty	five hundred and eighty-five
two hundred	four hundred and ninety-five	four hundred and fifty	six hundred and seventy-five
two hundred and fifty	six hundred and twenty-two	four hundred and seventy	seven hundred and thirty
three hundred	six hundred and ninety-eight	four hundred and ninety	seven hundred and sixty
three hundred and fifty	seven hundred and eighty-seven	five hundred and twenty-six	eight hundred and forty
four hundred	nine hundred and fourteen	five hundred and seventy	nine hundred and ten
four hundred and fifty	nine hundred and seventy-eight	five hundred and seventy	nine hundred and ten

Installation diagram of 900X emergency shut-off valve: