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Question:

What is the valve stem and valve seat of the indoor fire hydrant?

What is the valve stem and valve seat of the indoor fire hydrant?

Answer:

Now our company do the fire hydrant valve is copper, cast iron and seat ductile iron, difference between vacuum regulator bolt and common bolt is the decompression effect, when the nozzle pressure exceeds 0.5MPa the fire hydrant flow will produce a huge reaction in the gun mouth, out of control ability of firefighters it must be decompression!
Jul 19, 2017
The valve stem is copper and the seat is cast iron
Jul 19, 2017
The stem and the valve core are copper,The seats are cast-iron and ductile
Jul 19, 2017

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