Selection of the pump outlet check valve
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The following principles should be followed； For pipelines with a small diameter at the pump outlet, that is, DN
1. First, it is necessary to consider the purpose of the pump, where it will be used, and what the environment is like. For example, if a pump operates in a negative pressure system, a swing-type valve cannot be used; instead, a ball check valve should be chosen. 2. Consider the working medium and the purpose of using a check valve; if it is merely to prevent pump reversal caused by backflow of material, then a swing-type valve can be chosen. Otherwise, a swing-type one cannot be used, as swing-type ones allow for slight leakage.
What you said is too general; it’s hard to tell whether it’s a centrifugal pump or a positive displacement pump
I have come across various types of check valves, but I have never heard of the concepts of \"single-disc swing type, double-disc swing type, and multi-disc swing type.\" Could some expert please explain these to me?
Under normal circumstances, I agree with what was said on the first floor; that’s what I would choose as well
Please have someone on the 3rd floor explain the impact of pump types on the selection of check valves:handshake
For the check valve at the pump outlet, swing-type valves cannot be used in horizontal pipes; they are only suitable for vertical pipes. Insertion-type valves are not subject to such restrictions
I’ve never heard of the concepts of \"single-disc swing check valves, double-disc swing check valves, and multi-disc swing check valves\". Could some expert please explain them?