DYQ340H/Y Top mounted metal hard seal ball valveDetailed product description：

DYQ340H/Y top mounted metal hard seal ball valve
The upper mounted ball valve body is integrated with a valve cover, and the valve seat, ball, sealing ring, etc. are all installed from the top. Its advantage is that when repairing and replacing the valve seat, it is not necessary to remove the ball valve from the pipeline. Only open the valve cover and lift the ball out, which brings great convenience to underground pipelines, especially ball valves used in the atomic energy industry.

Main connection dimensions of DYQ340H/Y top mounted metal hard seal ball valve

PN1.6MPa

DN	d	L	D	D1	D2	b	f	Z-φd1
fifty	forty-two	two hundred and thirty	one hundred and sixty	one hundred and twenty-five	one hundred	sixteen	three	4-φ18
sixty-five	fifty-eight	two hundred and ninety	one hundred and eighty	one hundred and forty-five	one hundred and twenty	eighteen	three	4-φ18
eighty	sixty-five	three hundred and ten	one hundred and ninety-two	one hundred and sixty	one hundred and thirty-five	twenty-two	three	8-φ18
one hundred	eighty-two	three hundred and fifty	two hundred and fifteen	one hundred and eighty	one hundred and fifty-five	twenty-two	three	8-φ18
one hundred and twenty-five	one hundred and twenty	four hundred	two hundred and forty-five	two hundred and ten	one hundred and eighty-five	twenty-four	three	8-φ18
one hundred and fifty	one hundred and thirty-two	four hundred and eighty	two hundred and eighty	two hundred and forty	two hundred and ten	twenty-six	three	8-φ23
two hundred	one hundred and seventy	six hundred	three hundred and thirty-five	two hundred and ninety-five	two hundred and sixty-five	twenty-eight	three	12-φ23
two hundred and fifty	two hundred and twenty-five	seven hundred and thirty	four hundred and five	three hundred and fifty-five	three hundred and twenty	thirty	three	12-φ25
three hundred	two hundred and fifty-seven	eight hundred and thirty-eight	four hundred and sixty	four hundred and ten	three hundred and seventy-five	thirty-two	four	12-φ25
three hundred and fifty	three hundred and thirty-five	eight hundred and eighty-nine	five hundred and twenty	four hundred and seventy	four hundred and thirty-five	thirty-four	four	16-φ25

PN2.5MPa

DN	d	L	D	D1	D2	b	f	Z-φd1
fifty	forty-two	two hundred and thirty	one hundred and sixty	one hundred and twenty-five	one hundred	twenty	three	4-φ18
sixty-five	fifty-eight	two hundred and ninety	one hundred and eighty	one hundred and forty-five	one hundred and twenty	twenty-two	three	8-φ18
eighty	sixty-five	three hundred and ten	one hundred and ninety-five	one hundred and sixty	one hundred and thirty-five	twenty-two	three	8-φ18
one hundred	eighty-two	three hundred and fifty	two hundred and thirty	one hundred and ninety	one hundred and sixty	twenty-four	three	8-φ23
one hundred and twenty-five	one hundred and twenty	four hundred	two hundred and seventy	two hundred and twenty	one hundred and eighty-eight	twenty-eight	three	8-φ25
one hundred and fifty	one hundred and thirty-two	four hundred and eighty	three hundred	two hundred and fifty	two hundred and eighteen	thirty	three	8-φ25
two hundred	one hundred and seventy	six hundred	three hundred and sixty	three hundred and ten	two hundred and seventy-eight	thirty-four	three	12-φ25
two hundred and fifty	two hundred and twenty-five	seven hundred and thirty	four hundred and twenty-five	three hundred and seventy	three hundred and thirty-two	thirty-six	three	12-φ30
three hundred	two hundred and fifty-seven	eight hundred and thirty-eight	four hundred and eighty-five	four hundred and thirty	three hundred and ninety	forty	four	16-φ30
three hundred and fifty	three hundred and thirty-five	eight hundred and eighty-nine	five hundred and fifty	four hundred and ninety	four hundred and forty-eight	forty-four	four	16-φ34

Note: The structural length shall refer to GB 12221-89, and the flange type and size shall comply with JB79 or GB9113.