Internal structural issues of the check valve
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Issue with the connection between the internal valve disc and the linkage in the swing check valve? Is it allowed for the valve disc to rotate freely within the connecting rod?
Of course, it cannot rotate freely; otherwise, if it rotates to an angle perpendicular to the connecting rod, it will fall back and the valve disc will get stuck on the sealing surface, losing the function of a one-way valve
The connection is a rigid one; the movement direction is up and down, with no possibility of free rotation
The center line of the valve disc coincides exactly with the center line of the hole for the connecting rod, allowing free rotation around this center line
The valve disc of this check valve has holes in it; it’s for preventing freezing, I guess
Yes! Allow a small flow of the process medium to prevent freezing
The valve disc shouldn’t be able to rotate freely, right? Is the valve disc inside in the form of an electric fan?