DH77X-10/16 butterfly check valveDetailed product description：

DH77X-10/16 butterfly check valve is a type of valve used to prevent the flow of medium in pipelines and equipment. The valve achieves self opening or closing by the pressure of the medium. When the medium flows back, the valve disc automatically closes to cut off the flow of the medium and avoid accidents.

Performance specifications:
Nominal pressure: PN ≤ 1.6MPa nominal diameter: DN50 to DN600
Operating temperature: -10 ° C to+150 ° C Applicable medium: Fresh water, seawater

Component Material:
Valve body: cast iron, cast steel
Butterfly plate: ductile iron, copper alloy, stainless steel

The structural length complies with GB12221-89 "Structural Length of Flanged Metal Valves"

Main external dimensions:
DH77X-10/16 Butterfly Check Valve Structure Diagram

Specification		D1	D2	D3	L1	L2
mm	inch
fifty	two	one hundred and five	sixty-five	forty-six	forty-three	forty-eight
sixty-five	two point five	one hundred and twenty-five	eighty-five	sixty-five	forty-six	fifty-one
eighty	three	one hundred and forty	ninety-four	seventy	sixty-four	sixty-nine
one hundred	four	one hundred and sixty-three	one hundred and eighteen	eighty-eight	sixty-three	sixty-eight
one hundred and twenty-five	five	one hundred and ninety	one hundred and forty-five	one hundred and fifteen	seventy	seventy-five
one hundred and fifty	six	two hundred and fifteen	one hundred and seventy	one hundred and thirty-four	seventy-six	eighty-one
two hundred	eight	two hundred and seventy-two	two hundred and twenty-four	one hundred and eighty-two	eighty-nine	ninety-four
two hundred and fifty	ten	three hundred and twenty-five	two hundred and sixty-five	two hundred and twenty-three	one hundred and ten	one hundred and fifteen
three hundred	twelve	three hundred and seventy-four	three hundred and ten	two hundred and sixty	one hundred and fourteen	one hundred and nineteen
three hundred and fifty	fourteen	four hundred and thirty	three hundred and sixty	three hundred and ten	one hundred and twenty-six	one hundred and thirty-one
four hundred	sixteen	four hundred and eighty-four	four hundred and ten	three hundred and fifty-eight	one hundred and forty-three	one hundred and forty-eight