H76 type lug and wafer type double discs swing check valve(ANSI standard)H71對夾升降式止回閥(國標)H71 wafer type lift check valve(GB standard)
公稱壓力
PN(MPa)
Norminal
pressure公稱通徑
DN(mm)
Norminal
diameter尺寸(mm)Dimension重量(kg)
Weight配管法蘭(供參考)
Flange(as referenced)LDD3D2螺栓孔中
心圓直徑D1
Diameter of the bolt螺栓數量
Quantity of
the bolt螺栓直徑d
Diameter
of the bolt螺栓長度