BFDZ701 Hydraulic automatic valveDetailed product description：

Technical features of BFDZ701 hydraulic automatic valve:

Low resistance: Adopting directional valve control technology, the large valve plate has a high opening degree and low resistance, with a resistance coefficient of 0.3-1.1;
Small size: The valve body adopts a butterfly structure, and the volume is only 1/3-1/5 of the same caliber multifunctional hydraulic control valve;
Lightweight: Only one-third to one-fifth the weight of a multifunctional hydraulic control valve;
Long service life: adopting an inclined sealing amplitude, with automatic compensation function for sealing surface wear, greatly extending the service life;
Automatic control: The valve and water pump are interlocked through the medium inside the pipe, and the pump valve is linked without manual intervention. The pump opens the valve, and the pump stops and closes the valve;
Energy saving and consumption reducing: driven by medium pressure, without the need for external power, energy saving and consumption reducing;
Good sealing: Adopting a combination of soft and hard dual sealing technology, it effectively solves the sealing problem of large-diameter valves and can ensure "0" leakage for a long time;
Easy opening and closing: The large valve plate adopts an eccentric structure, with low friction torque and easy opening and closing;
Easy maintenance: The control system components are all located outside the valve body, making debugging simple and maintenance convenient, and can be inspected online.

BFDZ701 Hydraulic Automatic Valve Main Component Materials

Part Name	valve body	butterfly valve disc	valve stem	filler	Seal ring
Material	Grey cast iron, cast steel	Grey cast iron, cast steel, ductile iron	stainless steel	Polytetrafluoroethylene	Nitrile rubber

Main external connection dimensions

DN（mm)

two hundred

two hundred and fifty

three hundred

three hundred and fifty

four hundred

four hundred and fifty

five hundred

six hundred

seven hundred

eight hundred

nine hundred

one thousand

one thousand and two hundred

one thousand and four hundred

L

two hundred and thirty

two hundred and fifty

two hundred and seventy

two hundred and ninety

three hundred and ten

three hundred and thirty

three hundred and fifty

three hundred and ninety

four hundred and thirty

four hundred and seventy

five hundred and ten

five hundred and fifty

six hundred and thirty

seven hundred and ten

H

five hundred and fifty

six hundred and thirty

six hundred and ninety

seven hundred and eighty

eight hundred and sixty

nine hundred and ten

nine hundred and eighty

one thousand and seventy

one thousand two hundred and twenty

one thousand three hundred and twenty

one thousand four hundred and thirty

one thousand five hundred and fifty

one thousand and eight hundred

one thousand nine hundred and eighty

B1

five hundred and forty

six hundred

six hundred and fifty

seven hundred and ten

seven hundred and seventy

eight hundred and thirty

nine hundred

one thousand and ninety

one thousand and two hundred

one thousand three hundred and twenty

one thousand four hundred and twenty

one thousand five hundred and fifty

one thousand seven hundred and eighty

two thousand