Which has a lower pressure drop, a double-disc check valve or a swing check valve?
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Which one has a lower pressure drop, a double-disc check valve or a swing check valve? and reasons.
For the same pressure rating and diameter, double-disc check valves and swing check valves~~the double-disc type has slightly less resistance. Reason: Try force analysis? (The valve disc thickness of the double-plate type is slightly thinner...)
Are you asking about the one with a lower opening pressure?
Well, it can be understood that way too; the main thing is to know which one has a lower pressure loss for fluids
The flow resistance is low for single-leaf valves; the flow resistance of H44 is lower than that of H76. When H44 is in operation, the valve leaf is fully open with no resistance, whereas in H76, even when the valve plate is open, the shaft that holds the valve plate in place remains in the middle of the flow channel, resulting in high flow resistance. Flow resistance and opening pressure are not the same thing.
When it comes to fluid resistance, the single-disc swing check valve has less resistance than the double-leaf butterfly check valve